Academic literature on the topic 'Population based records'
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Journal articles on the topic "Population based records"
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Vayadande, Kuldeep, Rahebar Shaikh, Suraj Rothe, Sangam Patil, Tanuj Baware, and Sameer Naik. "Blockchain-Based Land Record System." ITM Web of Conferences 50 (2022): 01006. http://dx.doi.org/10.1051/itmconf/20225001006.
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In today’s world, having access to land records is a must and being able to see who owns the land property is important to allow crossverify ownership of the land in order for business purposes or for personal use. In India, maintaining the land record with the current population is a challenging task, and the current system was causing incomplete registries, leading to fraudulent activities. The current system being used by the government is inconsistent and has a lot of intermediaries who have access to the system and make changes to it. The use of Blockchain is increasing day by day, the government is trying to adopt technology, and web3.0 is the future we are heading; adding Land Records in Blockchain is very useful because it provides transparency for everyone. Allowing citizens to view the land record with a visual representation with maps will ensure everyone has access to these land records.
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Ogata, Takamitsu, Susumu Kaneshige, Koichi Matsuo, Naoya Matsunaga, Satoru Koyanagi, Shigehiro Ohdo, and Hidetoshi Kamimura. "Population Pharmacodynamic Analysis of Allopurinol Based on Electronic Medical Records." Iryo Yakugaku (Japanese Journal of Pharmaceutical Health Care and Sciences) 43, no. 11 (November 10, 2017): 630–39. http://dx.doi.org/10.5649/jjphcs.43.630.
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Mueller, Beth A., J. Lee Nelson, and Polly A. Newcomb. "Intrauterine environment and multiple sclerosis: a population- based case-control study." Multiple Sclerosis Journal 19, no. 1 (May 8, 2012): 106–11. http://dx.doi.org/10.1177/1352458512447869.
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Background: Associations of several autoimmune disorders with intrauterine and early life exposures have been reported. Objective: We used population-based linked hospital discharge-birth records data to explore maternal, prenatal, and infant characteristics in relation to MS-related hospitalization among Washington State residents. Methods: 272 cases hospitalized for MS during 1988–2008 and 2720 birth record controls were identified from linked hospital discharge-birth certificate data. Exposure information from their birth records were compared in a population-based case-control study to estimate adjusted odds ratios (ORs) and 95% confidence intervals (95%CIs) for associations with MS hospitalization. Results: Most factors examined were not associated with MS. Having a mother with 3+ prior live births (OR 0.54, 95%CI 0.31–0.95) or having 3+ older siblings (OR 0.49, 95%CI 0.28–0.85) were negatively associated. Maternal prenatal smoking (OR 3.09, 95%CI 1.22–7.84) was positively associated. Conclusion: Transplacental exposure to smoke constituents including chemicals affecting myelin may help explain any association with maternal prenatal smoking; however, we were unable to assess childhood or adult smoke exposures which may also account at least partly for this effect. The negative associations observed with greater maternal parity and number of siblings are consistent with some other studies. Reasons for these associations may involve various pathways.
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Dattani, Nirupa, and Alison Macfarlane. "Linkage of Maternity Hospital Episode Statistics data to birth registration and notification records for births in England 2005-2014: methods. A population-based birth cohort study." BMJ Open 8, no. 2 (February 2018): e017897. http://dx.doi.org/10.1136/bmjopen-2017-017897.
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IntroductionMaternity Hospital Episode Statistics (HES) data for 2005–2014 were linked to birth registration and birth notification data (previously known as NHS Numbers for Babies or NN4B) to bring together some key demographic and clinical data items not otherwise available at a national level. The linkage algorithm that was previously used to link 2005–2007 data was revised to improve the linkage rate and reduce the number of duplicate HES records.MethodsBirth registration and notification linked records from the Office for National Statistics (‘ONS birth records’) were further linked to Maternity HES delivery and birth records using the NHS Number and other direct identifiers if the NHS Number was missing.ResultsFor the period 2005–2014, over 94% of birth registration and notification records were correctly linked to HES delivery records. Two per cent of the ONS birth records were incorrectly linked to the HES delivery record and 5% of ONS birth records were linked to more than one HES delivery record. Therefore, a considerable amount of time was spent in quality assuring these files.ConclusionThe linkage rate for birth registration and notification records to HES delivery records steadily improved from 2005 to 2014 due to improvement in the quality and completeness of patient identifiers in both HES and birth notification data.
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JEFFS, D., V. NOSSAR, F. BAILEY, W. SMITH, and T. CHEY. "Retention and use of personal health records: A population-based study." Journal of Paediatrics and Child Health 30, no. 3 (June 1994): 248–52. http://dx.doi.org/10.1111/j.1440-1754.1994.tb00627.x.
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Muraki, Shota, Kunio Maema, Ayano Tomimatu, Yushi Kashihara, Takeshi Hirota, and Ichiro Ieiri. "Population pharmacodynamic analysis of olmesartan medoxomil based on electronic medical records." Proceedings for Annual Meeting of The Japanese Pharmacological Society WCP2018 (2018): PO2–13–3. http://dx.doi.org/10.1254/jpssuppl.wcp2018.0_po2-13-3.
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Guess, H. A., D. D. Broughton, L. J. Melton, and L. T. Kurland. "Population-Based Studies of Varicella Complications." Pediatrics 78, no. 4 (October 1, 1986): 723–27. http://dx.doi.org/10.1542/peds.78.4.723.
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Population-based data on vanicella complications are presented using information both from national sample surveys of hospitalizations and physician office visits and from reviews of medical records for all cases occurring within one community (Olmsted County, Minnesota) during a specified period. Acute cerebellar ataxia is the most common neurologic complication of varicella and occurs about once in 4,000 vanicella cases among children younger than 15 years of age. Among adults, varicella pneumonia is the most common complication and results in hospitalization about once in every 400 varicella cases. Overall, varicella accounts for approximately 4,000 hospitalizations and 364,000 physician office visits annually in the United States and represents an important continuing source of childhood and adult morbidity.
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Oskarsdottir, Gudrun Nina, Hedinn Sigurdsson, and Kristjan G. Gudmundsson. "Smoking during pregnancy: A population-based study." Scandinavian Journal of Public Health 45, no. 1 (October 31, 2016): 10–15. http://dx.doi.org/10.1177/1403494816676034.
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Aims: Tobacco is a major cause of disease and mortality in modern times. The risk of smoking in pregnancy is a serious threat to the development and future health of an unborn child. The aim of this study was to explore the epidemiological factors associated with smoking during pregnancy in a primary healthcare setting. Methods: All 856 maternity records at the Glaesibaer Health Care Centre in Reykjavik during 2006–2013 were reviewed and information on smoking habits investigated. Results: The records showed that in 108 (12.2%) pregnancies, women smoked at first visit and 63 stopped smoking in early pregnancy, leaving 45 (5.3%) mothers smoking throughout the whole gestational period. The mean age of the smoking women was 27.8 years and for the non-smokers 29.7 years. Low social status (odds ratio (OR) = 2.66; 95% confidence interval (CI): 1.19–5.96), previous mental health diagnosis (OR = 2.7; 95% CI: 1.3–5.6), and unstable relationship with a partner (OR = 3.78; 95% CI: 2.1–7.0) were associated with smoking. Smoking fewer cigarettes was associated with a 0.04-unit lower risk of smoking during pregnancy (OR = 0.04: 95% CI: 0.02–0.08). Conclusions: Our results indicated that the women who smoked during pregnancy were often heavy smokers and living without a partner. They were younger, had worse mental health, and a lower social status than those pregnant women who did not smoke. Bearing in mind the consequence of smoking in pregnancy, this subgroup should get increased assistance to quit smoking before and during early pregnancy, as well as appropriate medical and social support.
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Dixon-Suen, Suzanne C., Penelope M. Webb, Louise F. Wilson, Karen Tuesley, Louise M. Stewart, and Susan J. Jordan. "The Association Between Hysterectomy and Ovarian Cancer Risk: A Population-Based Record-Linkage Study." JNCI: Journal of the National Cancer Institute 111, no. 10 (February 11, 2019): 1097–103. http://dx.doi.org/10.1093/jnci/djz015.
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Abstract Background Recent studies have called into question the long-held belief that hysterectomy without oophorectomy protects against ovarian cancer. This population-based longitudinal record-linkage study aimed to explore this relationship, overall and by age at hysterectomy, time period, surgery type, and indication for hysterectomy. Methods We followed the female adult Western Australian population (837 942 women) across a 27-year period using linked electoral, hospital, births, deaths, and cancer records. Surgery dates were determined from hospital records, and ovarian cancer diagnoses (n = 1640) were ascertained from cancer registry records. We used Cox regression to estimate hazard ratios (HRs) and 95% confidence intervals (CIs) for the association between hysterectomy and ovarian cancer incidence. Results Hysterectomy without oophorectomy (n = 78 594) was not associated with risk of invasive ovarian cancer overall (HR = 0.98, 95% CI = 0.85 to 1.11) or with the most common serous subtype (HR = 1.05, 95% CI = 0.89 to 1.23). Estimates did not vary statistically significantly by age at procedure, time period, or surgical approach. However, among women with endometriosis (5.8%) or with fibroids (5.7%), hysterectomy was associated with substantially decreased ovarian cancer risk overall (HR = 0.17, 95% CI = 0.12 to 0.24, and HR = 0.27, 95% CI = 0.20 to 0.36, respectively) and across all subtypes. Conclusions Our results suggest that for most women, having a hysterectomy with ovarian conservation is not likely to substantially alter their risk of developing ovarian cancer. However, our results, if confirmed, suggest that ovarian cancer risk reduction could be considered as a possible benefit of hysterectomy when making decisions about surgical management of endometriosis or fibroids.
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Rezel-Potts, Emma, and Martin C. Gulliford. "Sepsis recording in primary care electronic health records, linked hospital episodes and mortality records: Population-based cohort study in England." PLOS ONE 15, no. 12 (December 31, 2020): e0244764. http://dx.doi.org/10.1371/journal.pone.0244764.
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Background Sepsis is a growing concern for health systems, but the epidemiology of sepsis is poorly characterised. We evaluated sepsis recording across primary care electronic records, hospital episodes and mortality registrations. Methods and findings Cohort study including 378 general practices in England from Clinical Practice Research Datalink (CPRD) GOLD database from 2002–2017 with 36,209,676 patient-years of follow-up with linked Hospital Episode Statistics (HES) and Office for National Statistics (ONS) mortality registrations. Incident sepsis episodes were identified for each source. Concurrent records from different sources were identified and age-standardised and age-specific incidence rates compared. Logistic regression analysis evaluated associations of gender, age-group, fifth of deprivation and period of diagnosis with concurrent sepsis recording. There were 20,206 first episodes of sepsis from primary care, 20,278 from HES and 13,972 from ONS. There were 4,117 (20%) first HES sepsis events and 2,438 (17%) mortality records concurrent with incident primary care sepsis records within 30 days. Concurrent HES and primary care records of sepsis within 30 days before or after first diagnosis were higher at younger or older ages and for patients with the most recent period of diagnosis. Those diagnosed during 2007:2011 were less likely to have a concurrent HES record given CPRD compared to those diagnosed during 2012–2017 (odd ratio 0.65, 95% confidence interval 0.60–0.70). At age 85 and older, primary care incidence was 5.22 per 1,000 patient years (95% CI 1.75–11.97) in men and 3.55 (0.87–9.58) in women which increased to 10.09 (4.86–18.51) for men and 7.22 (2.96–14.72) for women after inclusion of all three sources. Conclusion Explicit recording of ‘sepsis’ is inconsistent across healthcare sectors with a high proportion of non-concurrent records. Incidence estimates are higher when linked data are analysed.
Dissertations / Theses on the topic "Population based records"
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Taylor, Paul Terence Girot. "Postmortem Identification through matching dental traits with population data." Thesis, The University of Sydney, 2003. http://hdl.handle.net/2123/604.
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In cases of forensic dental identification, a key factor in the comparison of the dental status of deceased persons with antemortem dental records is the matching of dental restorations in individual teeth. Many studies have been performed showing the prevalence of dental interventions. This has mostly been performed by counting the numbers of decayed, missing and filled teeth (DMFT) in each mouth without detailed data collection on a per-tooth basis. The purpose of this study was to investigate the research question: to what extent would data on the distribution and prevalence of restoration types in the human dentition facilitate forensic identification? A database program was developed to allow efficient collection and collation of dental trait information. Provision was made for storing information relating to a subject's individual teeth, such as restorative materials used and surfaces filled. Other data, such as missing teeth, caries status on a per-individual tooth basis and presence and details of types of prostheses may be stored. iii Data from patients attending a private group practice in Hobart was collected and a system was devised to enable the likelihood of dental trait occurrence to be calculated in cases of forensic dental identification. The capabilities of the system are demonstrated in a series of mock cases of dental identification. An opportunity to make use of the database for which it was designed arose in relation to the analysis of person identification evidence in a murder trial at the Tasmanian Supreme Court. The use of this reference database in evidence invoked lengthy debate involving the judge, crown prosecutor and defence barristers. The resulting voire dire was resolved in favour of conclusions drawn from the use of the database being admitted in evidence. The legal precedent set in the Marlow trial may possibly offer encouragement for practising odontologists to further the concept of establishing and using reference databases of dental traits in population groups in other parts of Australia.
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Taylor, Paul Terence Girot. "Postmortem Identification through matching dental traits with population data." University of Sydney. Community Oral Health and Epidemiology, 2003. http://hdl.handle.net/2123/604.
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In cases of forensic dental identification, a key factor in the comparison of the dental status of deceased persons with antemortem dental records is the matching of dental restorations in individual teeth. Many studies have been performed showing the prevalence of dental interventions. This has mostly been performed by counting the numbers of decayed, missing and filled teeth (DMFT) in each mouth without detailed data collection on a per-tooth basis. The purpose of this study was to investigate the research question: to what extent would data on the distribution and prevalence of restoration types in the human dentition facilitate forensic identification? A database program was developed to allow efficient collection and collation of dental trait information. Provision was made for storing information relating to a subject's individual teeth, such as restorative materials used and surfaces filled. Other data, such as missing teeth, caries status on a per-individual tooth basis and presence and details of types of prostheses may be stored. iii Data from patients attending a private group practice in Hobart was collected and a system was devised to enable the likelihood of dental trait occurrence to be calculated in cases of forensic dental identification. The capabilities of the system are demonstrated in a series of mock cases of dental identification. An opportunity to make use of the database for which it was designed arose in relation to the analysis of person identification evidence in a murder trial at the Tasmanian Supreme Court. The use of this reference database in evidence invoked lengthy debate involving the judge, crown prosecutor and defence barristers. The resulting voire dire was resolved in favour of conclusions drawn from the use of the database being admitted in evidence. The legal precedent set in the Marlow trial may possibly offer encouragement for practising odontologists to further the concept of establishing and using reference databases of dental traits in population groups in other parts of Australia.
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Määttä, T. (Tuomo). "Down syndrome, health and disability:a population-based case record and follow-up study." Doctoral thesis, Oulun yliopisto, 2011. http://urn.fi/urn:isbn:9789514297090.
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Abstract The present study surveyed medical problems and mental health in an unselected population-based series of people with Down syndrome (DS). All people with DS identified in the Intellectual Disability Service Register in the Kainuu region (n=138) were included, and their health and disability case records in the public services were analysed. The severity of intellectual disability was related to age, gender, and recorded medical problems. Adaptive behaviour changes were assessed among adults repeatedly during ten years using the Adaptive Behaviour Scale - Residential and Community, Part I. The study evaluated health surveillance and practices were compared to the national Current Care guidelines. Numerous medical problems and behavioural symptoms were recorded in this population. Surgical treatments were used extensively. The number of medical problems varied to a great degree among participants. Health problems were extensive from birth to old age. Many health concerns were age-related. The degree of intellectual disability related to visual and neurological impairments. Depression, and among participants in their forties and older, Alzheimer’s disease were the most common underlying reasons for changes in adaptive behaviour. A gradual functional decline and dementia affected many participants at a relatively early age. Visual acuity and hearing should be regularly monitored in all individuals with DS because of a high prevalence of visual impairment and hearing loss in this population. There was a general lack of evidence that the health care guidelines initiated five years ago were being followed. This suggests that possibilities to enhance health have not been optimally implemented. Therefore, further efforts are needed to diagnose and treat medical problems in people with DSTiivistelmä Tutkimuksessa kuvattiin todettujen terveysongelmien yleisyyttä ja terveysseurannasta annettujen suositusten toteutumista Downin oireyhtymässä. Nykyisin Kainuussa elävien Down -henkilöiden tietojen lisäksi alueella aiemmin asuneiden saatavissa olevat sairaus- ja huoltokertomustiedot analysoitiin (n=138). Kehitysvammaisuuden vaikeusasteen, iän, sukupuolen ja todettujen sairauksien yhteyksiä selvitettiin. Aikuisten ja ikääntyvien Down -henkilöiden toimintakykyä seurattiin kymmenen vuoden ajan käyttäen Adaptiivisen käyttäytymisen asteikkoa. Käypä hoito -suosituksen toteutumista terveysseurannan osalta arvioitiin. Down -henkilöillä oli todettu lukuisia terveysongelmia ja käytösoireita kaikissa ikäryhmissä. Kirurgisia hoitoja oli tehty paljon. Yksilölliset erot sairastavuudessa ja toimintakyvyssä olivat erittäin huomattavat. Monet terveysongelmista liittyivät tiettyyn ikään. Vaikeasti kehitysvammaisilla todettiin enemmän silmäsairauksia ja näön ongelmia sekä neurologisia sairauksia kuin lievästi tai keskivaikeasti kehitysvammaisilla. Masennus ja yli 40 vuoden ikäisillä Alzheimerin tauti olivat yleisimmät toimintakyvyn heikentymisen syyt. Toimintakykvyn heikentyminen alkoi usein 40 ikävuoden jälkeen ja moni sairastui suhteellisen nuorena dementiaan. Kaikkien Down -henkilöiden kuuloa ja näköä tulisi seurata säännöllisesti, koska kuulon alentuminen ja näön ongelmat ovat yleisiä ja jäävät usein toteamatta. Hoitosuositukset eivät toteutuneet ainakaan säännöllisen kuulon ja kilpirauhasen toiminnan seurannan osalta viiden vuoden kuluessa suositusten antamisesta. Terveysseurannan parempi toimeenpano terveyden edistämiseksi on mahdollista. Down henkilöiden sairauksien toteamisen ja hoidon kehittäminen vaatii edelleen työtä
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Coles, Andrew H. "Long-Term Survival and Prognostic Factors in Patients with Acute Decompensated Heart Failure According to Ejection Fraction Findings: A Population-Based Perspective: A Master Thesis." eScholarship@UMMS, 2014. https://escholarship.umassmed.edu/gsbs_diss/722.
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Limited data exists describing the long-term prognosis of patients with acute decompensated heart failure (ADHF) further stratified according to currently recommended ejection fraction (EF) findings. In addition, little is known about the magnitude of, and factors associated with, long-term prognosis for these patients. Based on previously validated and clinically relevant criteria, we defined HF-REF as patients with an EF value ≤40%, HF-PEF was defined as an EF value > 50%, and HF-BREF was defined as patients with an EF value during their index hospitalization between 41 and 49%. The hospital medical records of residents of the Worcester (MA) metropolitan area who were discharged after ADHF from all 11 medical centers in central Massachusetts during the 5 study years of 1995, 2000, 2002, 2004, and 2006 were reviewed. Follow-up was completed through 2011 for all patient cohorts. The average age of this population was 75 years, the majority was white, and 44% were men. Patients with HF-PEF experienced higher post discharge survival rates than patients with either HF-REF or HF-BREF at 1, 2, and 5-years after discharge. Advanced age and lower estimated glomerular filtration rate findings at the time of hospital admission were important predictors of 1-year death rates, irrespective of EF findings. Previously diagnosed chronic obstructive pulmonary disease, chronic kidney disease, and atrial fibrillation were associated with a poor prognosis in patients with PEF and REF whereas a history of diabetes was an important prognostic factor for patients with REF and BREF. In conclusion, although improvements in 1-year post-discharge survival were observed for patients in each of the 3 EF groups examined to varying degrees, the post- 7 discharge prognosis of all patients with ADHF remains guarded. In addition, we observed differences in several prognostic factors between patients with ADHF with varying EF findings, which have implications for more refined treatment and surveillance plans for these patients.
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Coles, Andrew H. "Long-Term Survival and Prognostic Factors in Patients with Acute Decompensated Heart Failure According to Ejection Fraction Findings: A Population-Based Perspective: A Master Thesis." eScholarship@UMMS, 2008. http://escholarship.umassmed.edu/gsbs_diss/722.
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Limited data exists describing the long-term prognosis of patients with acute decompensated heart failure (ADHF) further stratified according to currently recommended ejection fraction (EF) findings. In addition, little is known about the magnitude of, and factors associated with, long-term prognosis for these patients. Based on previously validated and clinically relevant criteria, we defined HF-REF as patients with an EF value ≤40%, HF-PEF was defined as an EF value > 50%, and HF-BREF was defined as patients with an EF value during their index hospitalization between 41 and 49%. The hospital medical records of residents of the Worcester (MA) metropolitan area who were discharged after ADHF from all 11 medical centers in central Massachusetts during the 5 study years of 1995, 2000, 2002, 2004, and 2006 were reviewed. Follow-up was completed through 2011 for all patient cohorts. The average age of this population was 75 years, the majority was white, and 44% were men. Patients with HF-PEF experienced higher post discharge survival rates than patients with either HF-REF or HF-BREF at 1, 2, and 5-years after discharge. Advanced age and lower estimated glomerular filtration rate findings at the time of hospital admission were important predictors of 1-year death rates, irrespective of EF findings. Previously diagnosed chronic obstructive pulmonary disease, chronic kidney disease, and atrial fibrillation were associated with a poor prognosis in patients with PEF and REF whereas a history of diabetes was an important prognostic factor for patients with REF and BREF. In conclusion, although improvements in 1-year post-discharge survival were observed for patients in each of the 3 EF groups examined to varying degrees, the post- 7 discharge prognosis of all patients with ADHF remains guarded. In addition, we observed differences in several prognostic factors between patients with ADHF with varying EF findings, which have implications for more refined treatment and surveillance plans for these patients.
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Welford, John Anthony. "Nominal record linkage : the development of computer strategies to achieve the family-based record linkage of nineteenth century demographic data." Thesis, n.p, 1989. http://ethos.bl.uk/.
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Ou, Chunquan. "Individual risk factors that modify the short-term effects of air pollution on mortality : a population-based study of Chinese population /." Click to view the E-thesis via HKUTO, 2008. http://sunzi.lib.hku.hk/hkuto/record/B40687399.
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Churches, Timothy. "Estimation of a lower bound for the cumulative incidence of failure of female surgical sterilisation in NSW: a population-based study." Thesis, The University of Sydney, 2006. http://hdl.handle.net/2123/1968.
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Female tubal sterilisation, often referred to as "tubal ligation" but more often performed these days using laparoscopically-applied metal clips, remains a popular form of contraception in women who have completed their families. A review of the literature on the incidence of failure of tubal sterilisation found many reports of case-series and small clinic-based studies, but only a few larger studies with good epidemiological designs, most recently the US CREST study conducted during the 1980s and early 1990s. The CREST study reported a conditional (life-table) cumulative incidence of failure of 0.55, 0.84, 1.18 and 1.85 per 100 women at 1, 2, 4 and 10 years of follow-up respectively. The study described here estimated a lower bound for the incidence of tubal sterilisation failure in NSW by probabilistically linking routinely-collected hospital admission records for women undergoing sterilisation surgery to hospital admission records for the same women which were indicative of subsequent conception or which represented censoring events such as hysterectomy or death in hospital. Data for the period July 1992 to June 2000 were used. Kaplan-Meier and proportional-hazards survival analyses were performed on the resulting linked data set. The conditional cumulative incidence per 100 women at 1, 2 4 and 8 years of follow-up was estimated to be 0.74 (95% CI 0.68-0.81), 1.05 (0.97-1.13), 1.33 (1.23-1.42) and 1.51 (1.39-1.62) respectively. Forty percent of failures ended in abortion and 14% presented as ectopic pregnancies. Age, private health insurance status and sterilisation in a smaller hospital were all found to be associated with lower rates of failure. Strong evidence of time-limited excess numbers of failures in women undergoing surgery in particular hospitals was also found. The study demonstrates the feasibility of using linked, routinely-collected health data to evaluate relatively rare, long-term outcomes such as sterilisation failure on a population-wide basis.
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Wallman, Thorne. "Disability Pension with Special Reference to Sick Leave Track Record, Health Effects, Health Care Utilisation and Survival : A Population-based Study." Doctoral thesis, Uppsala universitet, Allmänmedicin och klinisk epidemiologi, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-9308.
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Background. In Sweden 10 percent (550,000) of the labour force, aged 18 to 65 years are disability pensioners and about four percent are on sick leave. The knowledge of the course from healthy individual to disability pensioner is not well known and was the theme of this thesis. Objectives, Material and Methods. The aims of the thesis were to follow the study population regarding sickness absence, health care utilisation, quality of life, and survival. Population based data including 14,538 women and men from three cities in Sweden were used, of whom 1,952 were granted a disability pension at baseline or received one during follow up. Register data, including sickness spells, health care utilisation, and mortality data during 30 years of follow up, and questionnaire data including socio-economic and quality of life data were used. Results. The most powerful determinant for being granted a disability pension was cumulative annual sick leave days, more powerful than all other tested determinants together. The degree of explanation for all determinants combined was 96%. Health care utilisation among disability pensioners continued to be high also after disability pension, 2.3 times higher for hospital admissions and 8 times higher for primary health case appointments than among referents. Disability pensioners had lower quality of life than non-pensioners and old age pensioners. For those who became disability pensioners after the baseline measurements quality of life measures decreased progressively until disability pension was granted and were then stabilised on a low level. During follow up 525 (7.6%) subjects died. Compared with subjects who did not become disability pensioners the hazards ratio was 2.78 among women and 3.43 among men, even when the effect of a number of other outcome affecting variables were taken into account. The mortality differences were not explained by underlying disease. Conclusions. The risk of disability pension may be predicted but only late in the course of events. Disability pensioners continue to have a high level of health care utilisation, and have a worse quality of life development and a higher mortality rate than non-pensioners. Given the unfavourable outcome of disability pension, other means of managing the reduced work capacity might be considered.
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Koo, Sergio Don. "Quality of life in children with chronic allergic respiratory disease a population-based child health survey in Hong Kong /." Click to view the E-thesis via HKUTO, 2009. http://sunzi.lib.hku.hk/hkuto/record/B42931538.
Full textBooks on the topic "Population based records"
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Barbara, Berkovich MA, and Amy Sitapati. Applied Population Health: Delivering Value-Based Care with Actionable Registries. Productivity Press, 2019.
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Barbara, Berkovich MA, and Amy Sitapati. Applied Population Health: Delivering Value-Based Care with Actionable Registries. Productivity Press, 2019.
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Applied Population Health: Delivering Value-Based Care with Actionable Registries. Taylor & Francis Group, 2019.
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Trestman, Robert L., and Kenneth L. Appelbaum. Population management. Oxford University Press, 2015. http://dx.doi.org/10.1093/med/9780199360574.003.0013.
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Jails and prisons share population management challenges with hotels: what beds are available meeting explicit requirements for which individuals? The management of large facilities and systems must incorporate ways to recognize a wide variety of safety and clinical demands in real time. Levels of security risk, medical, mental health and addictions treatment needs, and sex offender status, among others, must all be taken into account in placement decisions. Gang management and protective custody are added security factors that require consideration. Much of the work of population management is done at the time of admission into a facility. Court documents are reviewed and prior records retrieved. Custody, medical, and (where indicated) mental health staff interview the inmate on intake. Demographics, aliases, and criminal history are detailed. In a jail, the emphasis is on safety and basic medical/ mental health needs. On intake into a prison, additional concerns include educational activities, programming, and vocational needs. Increasing integration of evidence-based systems will likely occur in the future. This chapter discusses such pragmatic issues, particularly in the context of psychiatric management challenges these issues present.
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Alagoz, Esra, Kim Johnson, Andrew Quanbeck, and David Gustafson. Technology-Based Interventions for Late-Life Addiction. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780199392063.003.0011.
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Late-life addiction has been a neglected topic in the field of substance-use disorders research. Research suggests that with the aging baby-boomer generation, decline in fertility rates, and increases in life expectancy, there will be an increasing demand on the substance-abuse treatment systems designed specifically for individuals aged 65 and older in the next decade. Emerging technologies such as electronic health records, dashboards, communication tools, and new-generation monitoring devices offer significant opportunities to advance the treatment and recovery management of substance use disorders. This chapter explains the emerging technologies that are being used in addiction treatment and proposes guidelines for how these systems can be adopted for older adults by drawing on experiences from ElderTree, an interactive health technology designed for older populations.
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Churchland, Patricia S., and Terrence J. Sejnowski. The Computational Brain. The MIT Press, 2018. http://dx.doi.org/10.7551/mitpress/9780262533393.001.0001.
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Before this book was published in 1992, conceptual frameworks for brain function were based on the behavior of single neurons, applied globally. This book developed a different conceptual framework, based on large populations of neurons. This was done by showing that patterns of activities among the units in trained artificial neural network models had properties that resembled those recorded from populations of neurons recorded one at a time. It is one of the first books to bring together computational concepts and behavioral data within a neurobiological framework. Aimed at a broad audience of neuroscientists, computer scientists, cognitive scientists, and philosophers, the book is written for both expert and novice. This anniversary edition offers a new preface by the authors that puts the book in the context of current research. This approach influenced a generation of researchers in the field of neuroscience. Even today, when neuroscientists can routinely record from hundreds of neurons using optics rather than electricity, and the 2013 White House BRAIN initiative heralded a new era in innovative neurotechnologies, the main message of this book is still relevant.
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Anselmi, A. C. M., S. C. E. Gallon, P. Müller, and K. Reinhardt. Populationsgröße, Trichterdichte und Habitatpräferenz der Dünen-Ameisenjungfer Myrmeleon bore (Tjeder, 1941) im Gebiet der Dresdner Heide (Neuroptera). Technische Universität Dresden, 2021. http://dx.doi.org/10.25368/2022.402.
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Following the first record of Myrmeleon bore (Tjeder, 1941) in the Dresden Heath area in 2019 (KURTH 2020, Sächs. Entomol. Z. 10: 71-80), the population size and density of the species was determined. M. bore mainly was found in open, sparsely vegetated, sandy areas with direct sunlight exposure. The area-weighted density of the entire study site (4.05 hectares) was 0.177 larvae/m2. Population size estimates based on random quadrat counts lead to a figure of 4000-7000 individuals - the largest known population of this species. The positive correlation between larval size and pit diameter known for this species from laboratory trials was confirmed at our study site. This correlation may allow researchers to estimate the age structure of wild populations. Given the special responsibility of Germany for the protection of this species and the size of the population, we urge the protection of the site and a prioritisation over other protected species found in the area.
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Kennett, Douglas J., and David A. Hodell. AD 750–1100 Climate Change and Critical Transitions in Classic Maya Sociopolitical Networks. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780199329199.003.0007.
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Multiple palaeoclimatic reconstructions point to a succession of major droughts in the Maya Lowlands between AD 750 and 1100 superimposed on a regional drying trend that itself was marked by considerable spatial and temporal variability. The longest and most severe regional droughts occurred between AD 800 and 900 and again between AD 1000 and 1100. Well-dated historical records carved on stone monuments from forty Classic Period civic-ceremonial centers reflect a dynamic sociopolitical landscape between AD 250 and 800 marked by a complex of antagonistic, diplomatic, lineage-based, and subordinate networks. Warfare between Maya polities increased between AD 600 and 800 within the context of population expansion and long-term environmental degradation exacerbated by increasing drought. Nevertheless, in spite of the clear effects of drought on network collapse during the Classic Period, one lingering question is why polities in the northern lowlands persisted and even flourished between AD 800 and 1000 (Puuc Maya and Chichén Itzá) before they too fragmented during an extended and severe regional drought between AD 1000 and 1100. Here we review available regional climate records during this critical transition and consider the different sociopolitical trajectories in the South/Central versus Northern Maya lowlands.
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Scheuner, Maren T., Marcia Russell, Jane Peredo, Alison B. Hamilton, and Elizabeth M. Yano. Implementing Lynch Syndrome Screening in the Veterans Health Administration. Edited by David A. Chambers, Wynne E. Norton, and Cynthia A. Vinson. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780190647421.003.0024.
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Lynch syndrome (LS) is the most common hereditary colorectal cancer (CRC) syndrome. Diagnosis of LS has important clinical implications for CRC patients and their family members. LS screening in tumor tissue is possible, and screen-positive cases are referred for diagnostic testing. This case study describes how implementation science informed a population-based LS screening program in the Veterans Health Administration (VHA), the largest integrated health care delivery system in the United States. Successful implementation strategies relied on the organizational structures and processes characteristic of integrated health care systems, including data warehousing methods that leverage the electronic health record, case management, and centralized technical assistance. Challenges to sustainability of the population-based program include low prevalence of LS among veterans, limited expertise, organizational changes, and the rapidly evolving field of precision oncology. LS screening is an exemplar case study for implementation science in integrated health care delivery systems.
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Morrison, Judith, and Marcos Robles. Recommendations on Diversity Data in the Social Sector. Inter-American Development Bank, 2021. http://dx.doi.org/10.18235/0003856.
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Administrative records, surveys, and censuses are all important resources for understanding the extent and nature of existing inequities and biases. When individuals, households, and peoples (pueblos) are properly identified based on their ethnicity, race, disability status, sexual orientation, migration status, gender identity, or other characteristics, gaps in socioeconomic indicators across these groups can be quantified. This enables policymakers to focus efforts and resources towards the most disadvantaged and promote equity. The lack of disaggregated data representative of diverse groups limits our understanding of their living conditions and economic opportunities. It also poses a significant challenge. This guide supports individuals interested in collecting or analyzing data on indigenous peoples, African descendants, people with disabilities, and LGBTQ populations by providing conceptual and empirical tools for specialists.
Book chapters on the topic "Population based records"
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Yasumoto, Shinya, Chiho Watanabe, Ayumi Arai, Ryosuke Shibasaki, and Kei Oyoshi. "Population Mobility Modeling Based on Call Detail Records of Mobile Phones for Heat Exposure Assessment in Dhaka, Bangladesh." In Health in Ecological Perspectives in the Anthropocene, 29–42. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-2526-7_3.
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Lantican, Gaudencia A. "Field Screening of Gamma-Irradiated Cavendish Bananas." In Efficient Screening Techniques to Identify Mutants with TR4 Resistance in Banana, 97–109. Berlin, Heidelberg: Springer Berlin Heidelberg, 2022. http://dx.doi.org/10.1007/978-3-662-64915-2_7.
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AbstractIn our search for Cavendish bananas to withstand Fusarium oxysporum f. sp. cubense (Foc TR4) and other diseases, field screening of tissue-cultured Grand Nain banana seedlings derived from gamma-irradiated shoot tips was explored. Six months after irradiation and multiplication in the laboratory, the plantlets (M1V6) were individually grown in seedling bags under screen house conditions for 8 weeks, side-by-side with non-irradiated plantlets of the same clone. Once acclimatized, the banana plants were grown in an area confirmed positive of Foc TR4 (based on previous farm records stating that more than 50% of the plant population succumbed to the disease). Seedlings from each treatment (dose of radiation) were divided into four replicates, regardless of the number of plants. Each plant was given a unique identification code for traceability during disease monitoring, bunch and fruit quality evaluation.Incidences of Foc TR4, Moko disease (Ralstonia solanacearum) and virus diseases were monitored weekly. Plants found positive of any disease were eradicated immediately. The plant population for the succeeding generation was managed by removing the unwanted suckers, 12 weeks from planting using a spade gouge and keeping only one sucker per plant for the next generation. Agronomic characters of each plant were taken at the flowering stage. These included age to flower, height, pseudostem circumference, number of leaves and height of the sucker. The bunch was harvested 12 weeks from flowering. The number of hands in a bunch, the number of fingers and weight of a hand were recorded. The same agronomic characters of the plant were taken for the succeeding generations.Plants left standing in the field without any disease symptoms 3 years after planting were considered as putative mutants and were selected as candidate lines for multiplication and second-generation field screening. Only healthy suckers (free from viruses) were further multiplied via tissue culture technique to reach M1V6. Clean suckers from each line free of soil debris or dirt were sent to the laboratory for multiplication. At least 1000 plantlets were produced from each line for the second-generation field screening. These were grown in two locations – with and without records of Foc TR4. Field monitoring activities including plant population management, disease incidence assessment and fruit quality evaluation were carried out following the same protocols used in the establishment of the first-generation plants. Lines with population showing ≤10% Foc TR4 after the first harvest, with good vigor, fruit quality and productivity were considered as candidates for further multiplication, farmers distribution and field planting under semi-commercial scale.
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Crăciun, Daniela, Kata Orosz, and Viorel Proteasa. "Does Erasmus Mobility Increase Employability? Using Register Data to Investigate the Labour Market Outcomes of University Graduates." In European Higher Education Area: Challenges for a New Decade, 105–19. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-56316-5_8.
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Abstract The chapter sets out to answer a question that has long been on the mind of policy-makers, university leaders, scholars and students: does international student credit mobility have a positive impact on graduate employability? Traditionally, this question has been answered using survey data where internationally mobile students self-report their employment situation at a certain point after graduation. According to these studies, international student mobility positively affects the labour market outcomes of students. For instance, the European Commission reports that: (1) students who completed an Erasmus mobility program are half as likely to face long-term unemployment; (2) the unemployment rate of Erasmus students is 23% lower five years after graduation (European Commission 2014). While these studies provide important insights about the benefits associated with the cross-border credit mobility of students, the results can be plagued by self-selection bias in reporting post-mobility employment outcomes. In order to avoid the problems associated with survey data, in this chapter we offer an analysis based on register data from university records and employment records, using as a case study the West University of Timisoara, a leading comprehensive university in Romania. Using register data offers the possibility to study population-level data and compare the employment outcomes of mobile and non-mobile students. The chapter analyses the impact of credit mobility on insertion in the labour market, income levels and occupational prestige. While the research question that the chapter is trying to answer is important, the main message of the chapter is broader: ministries and higher education institutions should release data for research purposes. Register data is readily available and helps researchers make efficient use of resources. In turn, this can encourage evidence-based policymaking.
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Tino, Concetta. "The Voice of Teachers Involved in School-Work Alternance Programmes." In Employability & Competences, 151–61. Florence: Firenze University Press, 2018. http://dx.doi.org/10.36253/978-88-6453-672-9.23.
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Data from Censis 2011 highlighted worrying aspects of school dropouts (18%) and a NEET population increase (22.1%); the same elements were also highlighted by data from Cedefop (2014), where the issue of youth unemployment (21.7%) was also mentioned. In addition to this are the disappointing results from OCSE-Pisa surveys demonstrating that Italian educational institutions fail to provide young people with the skills they need to effectively solve real-life problems. In this scenario, at an Italian and European level, the importance of solving these problems is repeatedly underlined, with the creation of instruments to interconnect the world of education and the world of work. Within this process, School-Work Alternance (SWA) programmes can find a place. This study focuses on the strategic action of their key actors in creating effective partnerships with external organizations. Based on this assumption, the research question asked was: what specific functions do teachers play within School-Work Alternance programmes? Methodology: a qualitative methodological approach was used; data were collected through semi-structured interviews addressed to 14 high school teachers, and subsequently analysed using Atlas.ti software in order to record the significant core categories that emerged. Results: the data collected showed that within the SWA system yet to be defined, SWA teacher/tutors and coordinators in school contexts have played a significant role within School-Work Alternance programmes to date. Final remarks: teachers involved in School-Work Alternance programmes have a strategic position. These results have some practical implications at both educational/training and professional levels
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Pedrera-Jimenez, Miguel, Noelia Garcia-Barrio, Gema Hernandez-Ibarburu, Blanca Baselga, Alvar Blanco, Fernando Calvo-Boyero, Alba Gutierrez-Sacristan, et al. "Building an i2b2-Based Population Repository for COVID-19 Research." In Studies in Health Technology and Informatics. IOS Press, 2022. http://dx.doi.org/10.3233/shti220460.
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Reuse of Electronic Health Records (EHRs) for specific diseases such as COVID-19 requires data to be recorded and persisted according to international standards. Since the beginning of the COVID-19 pandemic, Hospital Universitario 12 de Octubre (H12O) evolved its EHRs: it identified, modeled and standardized the concepts related to this new disease in an agile, flexible and staged way. Thus, data from more than 200,000 COVID-19 cases were extracted, transformed, and loaded into an i2b2 repository. This effort allowed H12O to share data with worldwide networks such as the TriNetX platform and the 4CE Consortium.
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Abankwah, Ruth M., and Meameno N. Hamutumwa. "The Management of Magistrate Courts Records in Namibia." In Managing Knowledge Resources and Records in Modern Organizations, 168–78. IGI Global, 2017. http://dx.doi.org/10.4018/978-1-5225-1965-2.ch010.
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This chapter is based on a study prompted by concerns about delayed cases in Namibian magistrate courts. The purpose was to examine the prevailing records management practices. The study was conducted in seven regions which were purposively selected based on location or population. Data was collected by means of observations and face-to-face interviews. The study revealed that: some magistrate courts did not adhere to records management standards resulting in an absence of a records management policy, classification schemes, retention schedules, shortage of storage space, lack of physical security and untrained record staff. The study recommends employment of trained records personnel; staff awareness in the management of the Namibia Case Information System (NAMCIS); install CCTV and maintain air conditioners in records storage facilities; ensure that the National Archives of Namibia fast tracks the process of approving requests for transfer or destruction of magistrate courts' records; and uphold records management standards.
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Shawish, Ahmed, and Maria Salama. "Cloud-Based Healthcare Systems." In Web-Based Services, 2299–323. IGI Global, 2016. http://dx.doi.org/10.4018/978-1-4666-9466-8.ch102.
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Healthcare is one of the most important sectors in all countries and significantly affects the economy. As such, the sector consumes an average of 9.5% of the gross domestic product across the most developed countries; they should invoke smart healthcare systems to efficiently utilize available resources, vastly handle spontaneous emergencies, and professionally manage the population health records. With the rise of the Cloud and Mobile Computing, a vast variety of added values have been introduced to software and IT infrastructure. This chapter provides a comprehensive review on the new Cloud-based and mobile-based applications that have been developed in the healthcare field. Cloud's availability, scalability, and storage capabilities, in addition to the Mobile's portability, wide coverage, and accessibility features, contributed to the fulfillment of healthcare requirements. The chapter shows how Cloud and Mobile opened a new environment for innovative services in the healthcare field and discusses the open research issues.
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Descalzo, Juan M., Julian Verdineli, Joia Nuñez, Soledad V. Díaz, Maria L. Gambarte, Sebastián Minoletti, Matías H. Blanco, et al. "An Improved Immunization Record to Support Vaccination During the COVID-19 Pandemic at a University Hospital in Argentina." In MEDINFO 2021: One World, One Health – Global Partnership for Digital Innovation. IOS Press, 2022. http://dx.doi.org/10.3233/shti220065.
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WHO and UNICEF highlight vaccination as the most cost-effective method of prevention of infectious diseases. An effective public health strategy requires efficient tracking of vaccination to assess coverage, safety, and efficacy of these vaccines. Paper-based immunization records are still being used in most low and middle-income countries. Adequate Electronic Logistic Management Information Systems, Immunization Registries and Records are crucial for proper data collection and analysis, and for making better decisions at an individual and at a population level. In this paper we share our experience in the redesign of an interoperable immunization record to track vaccination, including the recently developed vaccines for the novel coronavirus SARS-CoV-2 (COVID-19).
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Møller, Anders Pape, and Wesley M. Hochachka. "Long-term time series of ornithological data." In Effects of Climate Change on Birds, 37–43. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780198824268.003.0004.
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There are numerous sources of data relevant for studies of the effects of climate change. Here we provide a classification of such data and their advantages and drawbacks. Long-term data can be classified into data from long-term population studies, nest record schemes, bird surveys, breeding and winter atlases, bird ringing information, bird ringing stations, bird observation depositories, and museum collections. Such data differ enormously in quality, but also in their usefulness. They range from long-term population studies of individually banded birds that can be used for genetic, evolution, and ecology studies to studies of presence/absence data. There are relatively few individual-based population studies while databases of records of individuals are much more abundant, albeit still useful for many purposes. Different databases also vary consistently in data quality, and there is scope for methodological studies and comparative analyses of multiple data bases.
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Shawish, Ahmed, and Maria Salama. "Cloud-Based Healthcare Systems." In Healthcare Ethics and Training, 1428–53. IGI Global, 2017. http://dx.doi.org/10.4018/978-1-5225-2237-9.ch068.
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Healthcare is one of the most important sectors in all countries and significantly affects the economy. As such, the sector consumes an average of 9.5% of the gross domestic product across the most developed countries; they should invoke smart healthcare systems to efficiently utilize available resources, vastly handle spontaneous emergencies, and professionally manage the population health records. With the rise of the Cloud and Mobile Computing, a vast variety of added values have been introduced to software and IT infrastructure. This chapter provides a comprehensive review on the new Cloud-based and mobile-based applications that have been developed in the healthcare field. Cloud's availability, scalability, and storage capabilities, in addition to the Mobile's portability, wide coverage, and accessibility features, contributed to the fulfillment of healthcare requirements. The chapter shows how Cloud and Mobile opened a new environment for innovative services in the healthcare field and discusses the open research issues.
Conference papers on the topic "Population based records"
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Huang, Zhuojie, Udayan Kumar, Todd Bodnar, and Marcel Salathé. "Understanding population displacements on location-based call records using road data." In the Second ACM SIGSPATIAL International Workshop. New York, New York, USA: ACM Press, 2013. http://dx.doi.org/10.1145/2534190.2534199.
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Šimunović, Ljupko, Mario Ćosić, Dino Šojat, and Julijan Jurak. "Population synthesis in activity-based travel demand." In 6th International Conference on Road and Rail Infrastructure. University of Zagreb Faculty of Civil Engineering, 2021. http://dx.doi.org/10.5592/co/cetra.2020.1150.
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A Synthetic Population is first part of creating travel demand model by using activity-based approach. Population synthesis is application of algorithms that expanded representative samples of people or household with characterises (such as gender, car ownership, age or ethnicity etc.) to entire area of researching. Because of complexity of people decisions before or during travel, one attribute is not enough to fully describe what factors have impact on them. Population synthesis iterate a set of attributes for each person in the sample and after expansion and assigning weights create simulated people or household with their characteristic. Basic components are marginal distribution targets of household and person attributes, household and person samples and algorithm for selecting the sample records into a synthetic population such that the attributes of that population match the marginal targets. Goal of this paper is to present population synthesis and her importance for activity-based approach in travel demand modelling. The paper will consist of introduction, literature overview, presenting benefits and complexity of population synthesis, discussion and conclusion.
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Abu-Dbaa, Reem, Haneen Othman, Menatallah Zewein, and Vijay Ganji. "Validation of FFQ against Food Records for Vitamin D in Qatar Population." In Qatar University Annual Research Forum & Exhibition. Qatar University Press, 2020. http://dx.doi.org/10.29117/quarfe.2020.0206.
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Background: Measurement of Vitamin D nutritional status through dietary assessment is a cost effective method. The food frequency questionnaire (FFQ) is usually validated against food records (FR). There is no Vitamin D specific FFQ for Qatar population Objective: The objective of this study was to develop a Vitamin D centric FFQ and validate FFQ against 3-day FR for Qatar population. Methodology: A quantitative FFQ based on Vitamin D containing foods consumed in Qatar was developed. Vitamin D content of foods were gathered from food labels and food composition tables from the USDA. A Vitamin D content database was developed for this study purpose. Dietary intakes using FFQ and 3-day FR were collected from 62 participants. Vitamin D intakes from FFQ and 3-day FR were validated with quartile comparison and Bland-Altman (BA) tests. Results: BA plot showed an agreement between FFQ and 3-day FR Vitamin D intakes. BA index was 3.23%, which is <5%, a commonly used standard for validation. Quartile correlation showed ≈73% of the subjects were within 1 quartile difference. Conclusion: In conclusion, an agreement was found between Vitamin D intakes from FFQ and 3-day FR. This indicates that the FFQ can be used as a valid dietary method to assess Vitamin D status in Qatar’s population
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Bird, Broxton, Jeremy J. Wilson, William Gilhooly, Byron A. Steinman, Lucas G. Stamps, Ashley Albert, Mark B. Abbott, David Pompeani, Matthew S. Finkenbinder, and Aubrey Leigh Hillman. "MIDCONTINENTAL LAKE-BASED PALEOCLIMATE RECORDS OF LATE HOLOCENE HYDROCLIMATE VARIABILITY AND NATIVE AMERICAN POPULATION DYNAMICS." In Joint 52nd Northeastern Annual Section and 51st North-Central Annual GSA Section Meeting - 2017. Geological Society of America, 2017. http://dx.doi.org/10.1130/abs/2017ne-290298.
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Rezel-Potts, E., and M. Gulliford. "OP46 Comparison of sepsis recording in primary care electronic health records and linked hospital episodes and mortality data: population-based cohort study in England." In Society for Social Medicine and Population Health Annual Scientific Meeting 2020, Hosted online by the Society for Social Medicine & Population Health and University of Cambridge Public Health, 9–11 September 2020. BMJ Publishing Group Ltd, 2020. http://dx.doi.org/10.1136/jech-2020-ssmabstracts.46.
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Khudadad, Hanan, and Lukman Thalib. "Antibiotics Prescription Patterns in Primary Health Care in Qatar – A Population based study from 2017 to 2018." In Qatar University Annual Research Forum & Exhibition. Qatar University Press, 2020. http://dx.doi.org/10.29117/quarfe.2020.0169.
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Background: Antibiotics are antimicrobial drugs used in the treatment and prevention of bacterial infections. They played a pivotal role in achieving major advances in medicine and surgery (1). Yet, due to increased and inappropriate use of antibiotics, antibiotic resistance (AR) has become a growing public health problem. Information on antibiotic prescription patterns are vital in developing a constructive approach to deal with growing antibiotic resistance (2). The study aims to describe the population based antibiotic prescriptions among patients attending primary care centers in Qatar. Methodology: A population based observational study of all medications prescribed in the all Primary Health Care Centers during the period of 2017-2018 in Qatar. Records with all medication prescriptions were extracted and linked to medical diagnosis. Antibiotics prescriptions records were compared to non- antibiotics records using logistic regression model in identifying the potential predictors for antibiotic prescriptions. Results: A total of 11,069,439 medication prescriptions given over a period of two-years, we found about 12.1% (n= 726,667) antibiotics prescriptions were antibiotics, and 65% of antibiotics are prescribed and received by the patients at the first visits. Paracetamol (22.3%) was the first highest medication prescribed followed by antibiotics (12.1 %) and vitamin D2 (10.2 %). More than half of all antibiotics prescribed during the period of January 2017 to December 2018 were Penicillin (56.9%). We found that half of the antibiotics (49.3 %) have been prescribed for the respiratory system comparing to the other body system. We found that males were 29% more likely be given an antibiotic compared to females (OR=1.29, 95% CI= 1.24- 1.33). Implications: The study provides a baseline data to enable PHCC management to design effective intervention program to address the problem of antibiotics resistance. Furthermore, it will help the policymakers to comprehend the size of the issue and develop a system to manage the antibiotics therapy. Conclusion: Antibiotics was the second highest medication prescribed in the Primary Health Care Centers in Qatar after paracetamol and most of the patients received it at the first visit. Most of the prescriptions in Primary Health Care Centers in Qatar were for the respiratory system, and Penicillin was the highest class prescribed. Male visitors were prescribed antibiotics more than female visitors.
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Brahimi, Malek, and Sidi Berri. "The Use of ARMA Models in Earthquake Response Spectra." In 14th International Conference on Nuclear Engineering. ASMEDC, 2006. http://dx.doi.org/10.1115/icone14-89023.
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Structural design spectra are based on smoothed linear response spectra obtained from different events scaled by their peak values. Such an approach does not incorporate other characteristics of the excitation represented by measured data. This study investigate the use of non-stationary models which can be considered characteristic and representative of specific historical earthquakes. An earthquake record is regarded as a sample realization from a population of such samples, which could have been generated by the stochastic process characterized by an Autoregressive Moving Average (ARMA) model. ARMA models are developed for four major earthquakes after processing by a variance stabilizing transformation. Samples of acceleration records are generated for each event. In this earthquake modeling procedure, parameters describing the modulating function of the record and the stabilized series are estimated. Maximum displacement ductility demand and normalized hysteretic energy demand for linear and stiffness softening single degree of freedom system systems are computed for the samples generated for each event. The sensitivity and dependence of demand spectra on earthquake model characteristics are examined to develop a response prediction model. Non linear response analysis of the four events indicates that ARMA (2,1) process using samples of twenty simulated earthquakes provide a reliable description of the information contained within acceleration records. Empirical relationships for displacement ductility and Normalized hysteretic energy demand spectra are developed.
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Ludlow, Jed. "Alternative Sampling Plans for Verification of Pipeline Material Properties: Frequentist and Bayesian Statistical Approaches." In 2022 14th International Pipeline Conference. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/ipc2022-87115.
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Abstract The creation and retention of accurate records reflecting the makeup of a pipeline is a critical aspect of pipeline safety. In the U.S., 49 CFR 192 provides guidance on the verification of pipeline material properties for populations of like pipe, including the development of alternative sampling plans for populations that lack complete documentation. But the code provides little guidance on how to formulate such a plan and how to process the samples as they arrive. Various statistical approaches exist for developing lower bounds on material properties based upon measurements. On one hand, frequentist (or classical) approaches are sometimes simpler to understand and implement. On the other hand, Bayesian approaches allow for the incorporation of natural prior information to improve the estimate. Estimating the yield strength (YS) is often one of the most important objectives of an alternative sampling plan. This paper presents a study of frequentist and Bayesian statistical approaches to developing a lower bound on YS using simulations of alternative sampling plans. Various hypothetical pipe populations with different distribution assumptions, indicative of different possible manufacturing patterns at the pipe mill, are simulated then alternative sampling plans are conducted for each simulated population under both frequentist and Bayesian statistical approaches. For each approach, the resulting lower bound on YS is estimated and compared with the true population lower bound. This direct comparison is possible since full information on the simulated populations is available. The relative merits of each statistical approach are compared, and recommendations about which approaches are most suitable are provided.
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"Marriage and Divorce Rate Trends in Nizhny Tagil in 1990–2020." In XII Ural Demographic Forum “Paradigms and models of demographic development”. Institute of Economics of the Ural Branch of the Russian Academy of Sciences, 2021. http://dx.doi.org/10.17059/udf-2021-1-21.
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The article analyses the changes in marriage and family relations of the population of Nizhny Tagil in 1990–2020 based on the data of the current statistical records and the census of 2010. The marriage rates in the city varied in waves influenced by changes in the number of Tagil residents at a young marriageable age. There was a gradual shift in the registration of marriages to a more mature age. The wide spread of repeated and unregistered marriages in the city, as well as high divorce rates indicate a violation of the stability of marriage, which negatively affects the reproduction of the population. To increase the birth rate, measures aimed at strengthening the family are necessary.
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Rodríguez, Germán, Carlos Guedes Soares, and José Carlos Nieto Borge. "Exploring Distributional Properties of the Maximum Wave Height in a Sea State." In ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/omae2018-78778.
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Location, dispersion, and asymmetry variability of the probability distribution of the maximum wave height from a set of N individual wave heights are examined in terms of the spectral peakedness and the duration of the sea states through the use of robust statistical parameters. The capability of various empirical and theoretical models to reproduce the observed features is also explored. The study is based on the analysis of numerically simulated Gaussian wave records with given target spectra to fulfill the long duration and stationarity jointly required conditions, seldom found in nature. Results indicate a clear dependence of the probability distribution structure and location on the record length and the spectral narrowness. Furthermore, it is observed that theoretical models based on the statistical independence of individual waves in a sea state and the knowledge of its population distribution assumptions are not able to characterize the structure and variations induced by these factors on the empirical distribution. However, the observed features can be reproduced by a simple empirical model depending on the sample quartiles.
Reports on the topic "Population based records"
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Hajarizadeh, Behzad, Jennifer MacLachlan, Benjamin Cowie, and Gregory J. Dore. Population-level interventions to improve the health outcomes of people living with hepatitis B: an Evidence Check brokered by the Sax Institute for the NSW Ministry of Health, 2022. The Sax Institute, August 2022. http://dx.doi.org/10.57022/pxwj3682.
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Background An estimated 292 million people are living with chronic hepatitis B virus (HBV) infection globally, including 223,000 people in Australia. HBV diagnosis and linkage of people living with HBV to clinical care is suboptimal in Australia, with 27% of people living with HBV undiagnosed and 77% not receiving regular HBV clinical care. This systematic review aimed to characterize population-level interventions implemented to enhance all components of HBV care cascade and analyse the effectiveness of interventions. Review questions Question 1: What population-level interventions, programs or policy approaches have been shown to be effective in reducing the incidence of hepatitis B; and that may not yet be fully rolled out or evaluated in Australia demonstrate early effectiveness, or promise, in reducing the incidence of hepatitis B? Question 2: What population-level interventions and/or programs are effective at reducing disease burden for people in the community with hepatitis B? Methods Four bibliographic databases and 21 grey literature sources were searched. Studies were eligible for inclusion if the study population included people with or at risk of chronic HBV, and the study conducted a population-level interventions to decrease HBV incidence or disease burden or to enhance any components of HBV care cascade (i.e., diagnosis, linkage to care, treatment initiation, adherence to clinical care), or HBV vaccination coverage. Studies published in the past 10 years (since January 2012), with or without comparison groups were eligible for inclusion. Studies conducting an HBV screening intervention were eligible if they reported proportion of people participating in screening, proportion of newly diagnosed HBV (participant was unaware of their HBV status), proportion of people received HBV vaccination following screening, or proportion of participants diagnosed with chronic HBV infection who were linked to HBV clinical care. Studies were excluded if study population was less than 20 participants, intervention included a pharmaceutical intervention or a hospital-based intervention, or study was implemented in limited clinical services. The records were initially screened by title and abstract. The full texts of potentially eligible records were reviewed, and eligible studies were selected for inclusion. For each study included in analysis, the study outcome and corresponding 95% confidence intervals (95%CIs) were calculated. For studies including a comparison group, odds ratio (OR) and corresponding 95%CIs were calculated. Random effect meta-analysis models were used to calculate the pooled study outcome estimates. Stratified analyses were conducted by study setting, study population, and intervention-specific characteristics. Key findings A total of 61 studies were included in the analysis. A large majority of studies (study n=48, 79%) included single-arm studies with no concurrent control, with seven (12%) randomised controlled trials, and six (10%) non-randomised controlled studies. A total of 109 interventions were evaluated in 61 included studies. On-site or outreach HBV screening and linkage to HBV clinical care coordination were the most frequent interventions, conducted in 27 and 26 studies, respectively. Question 1 We found no studies reporting HBV incidence as the study outcome. One study conducted in remote area demonstrated that an intervention including education of pregnant women and training village health volunteers enhanced coverage of HBV birth dose vaccination (93% post-intervention, vs. 81% pre-intervention), but no data of HBV incidence among infants were reported. Question 2 Study outcomes most relevant to the HBV burden for people in the community with HBV included, HBV diagnosis, linkage to HBV care, and HBV vaccination coverage. Among randomised controlled trials aimed at enhancing HBV screening, a meta-analysis was conducted including three studies which implemented an intervention including community face-to-face education focused on HBV and/or liver cancer among migrants from high HBV prevalence areas. This analysis demonstrated a significantly higher HBV testing uptake in intervention groups with the likelihood of HBV testing 3.6 times higher among those participating in education programs compared to the control groups (OR: 3.62, 95% CI 2.72, 4.88). In another analysis, including 25 studies evaluating an intervention to enhance HBV screening, a pooled estimate of 66% of participants received HBV testing following the study intervention (95%CI: 58-75%), with high heterogeneity across studies (range: 17-98%; I-square: 99.9%). A stratified analysis by HBV screening strategy demonstrated that in the studies providing participants with on-site HBV testing, the proportion receiving HBV testing (80%, 95%CI: 72-87%) was significantly higher compared to the studies referring participants to an external site for HBV testing (54%, 95%CI: 37-71%). In the studies implementing an intervention to enhance linkage of people diagnosed with HBV infection to clinical care, the interventions included different components and varied across studies. The most common component was post-test counselling followed by assistance with scheduling clinical appointments, conducted in 52% and 38% of the studies, respectively. In meta-analysis, a pooled estimate of 73% of people with HBV infection were linked to HBV clinical care (95%CI: 64-81%), with high heterogeneity across studies (range: 28-100%; I-square: 99.2%). A stratified analysis by study population demonstrated that in the studies among general population in high prevalence countries, 94% of people (95%CI: 88-100%) who received the study intervention were linked to care, significantly higher than 72% (95%CI: 61-83%) in studies among migrants from high prevalence area living in a country with low prevalence. In 19 studies, HBV vaccination uptake was assessed after an intervention, among which one study assessed birth dose vaccination among infants, one study assessed vaccination in elementary school children and 17 studies assessed vaccination in adults. Among studies assessing adult vaccination, a pooled estimate of 38% (95%CI: 21-56%) of people initiated vaccination, with high heterogeneity across studies (range: 0.5-93%; I square: 99.9%). A stratified analysis by HBV vaccination strategy demonstrated that in the studies providing on-site vaccination, the uptake was 78% (95%CI: 62-94%), significantly higher compared to 27% (95%CI: 13-42%) in studies referring participants to an external site for vaccination. Conclusion This systematic review identified a wide variety of interventions, mostly multi-component interventions, to enhance HBV screening, linkage to HBV clinical care, and HBV vaccination coverage. High heterogeneity was observed in effectiveness of interventions in all three domains of screening, linkage to care, and vaccination. Strategies identified to boost the effectiveness of interventions included providing on-site HBV testing and vaccination (versus referral for testing and vaccination) and including community education focussed on HBV or liver cancer in an HBV screening program. Further studies are needed to evaluate the effectiveness of more novel interventions (e.g., point of care testing) and interventions specifically including Indigenous populations, people who inject drugs, men who have sex with men, and people incarcerated.
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Rankin, Nicole, Deborah McGregor, Candice Donnelly, Bethany Van Dort, Richard De Abreu Lourenco, Anne Cust, and Emily Stone. Lung cancer screening using low-dose computed tomography for high risk populations: Investigating effectiveness and screening program implementation considerations: An Evidence Check rapid review brokered by the Sax Institute (www.saxinstitute.org.au) for the Cancer Institute NSW. The Sax Institute, October 2019. http://dx.doi.org/10.57022/clzt5093.
Full textAbstract:
Background Lung cancer is the number one cause of cancer death worldwide.(1) It is the fifth most commonly diagnosed cancer in Australia (12,741 cases diagnosed in 2018) and the leading cause of cancer death.(2) The number of years of potential life lost to lung cancer in Australia is estimated to be 58,450, similar to that of colorectal and breast cancer combined.(3) While tobacco control strategies are most effective for disease prevention in the general population, early detection via low dose computed tomography (LDCT) screening in high-risk populations is a viable option for detecting asymptomatic disease in current (13%) and former (24%) Australian smokers.(4) The purpose of this Evidence Check review is to identify and analyse existing and emerging evidence for LDCT lung cancer screening in high-risk individuals to guide future program and policy planning. Evidence Check questions This review aimed to address the following questions: 1. What is the evidence for the effectiveness of lung cancer screening for higher-risk individuals? 2. What is the evidence of potential harms from lung cancer screening for higher-risk individuals? 3. What are the main components of recent major lung cancer screening programs or trials? 4. What is the cost-effectiveness of lung cancer screening programs (include studies of cost–utility)? Summary of methods The authors searched the peer-reviewed literature across three databases (MEDLINE, PsycINFO and Embase) for existing systematic reviews and original studies published between 1 January 2009 and 8 August 2019. Fifteen systematic reviews (of which 8 were contemporary) and 64 original publications met the inclusion criteria set across the four questions. Key findings Question 1: What is the evidence for the effectiveness of lung cancer screening for higher-risk individuals? There is sufficient evidence from systematic reviews and meta-analyses of combined (pooled) data from screening trials (of high-risk individuals) to indicate that LDCT examination is clinically effective in reducing lung cancer mortality. In 2011, the landmark National Lung Cancer Screening Trial (NLST, a large-scale randomised controlled trial [RCT] conducted in the US) reported a 20% (95% CI 6.8% – 26.7%; P=0.004) relative reduction in mortality among long-term heavy smokers over three rounds of annual screening. High-risk eligibility criteria was defined as people aged 55–74 years with a smoking history of ≥30 pack-years (years in which a smoker has consumed 20-plus cigarettes each day) and, for former smokers, ≥30 pack-years and have quit within the past 15 years.(5) All-cause mortality was reduced by 6.7% (95% CI, 1.2% – 13.6%; P=0.02). Initial data from the second landmark RCT, the NEderlands-Leuvens Longkanker Screenings ONderzoek (known as the NELSON trial), have found an even greater reduction of 26% (95% CI, 9% – 41%) in lung cancer mortality, with full trial results yet to be published.(6, 7) Pooled analyses, including several smaller-scale European LDCT screening trials insufficiently powered in their own right, collectively demonstrate a statistically significant reduction in lung cancer mortality (RR 0.82, 95% CI 0.73–0.91).(8) Despite the reduction in all-cause mortality found in the NLST, pooled analyses of seven trials found no statistically significant difference in all-cause mortality (RR 0.95, 95% CI 0.90–1.00).(8) However, cancer-specific mortality is currently the most relevant outcome in cancer screening trials. These seven trials demonstrated a significantly greater proportion of early stage cancers in LDCT groups compared with controls (RR 2.08, 95% CI 1.43–3.03). Thus, when considering results across mortality outcomes and early stage cancers diagnosed, LDCT screening is considered to be clinically effective. Question 2: What is the evidence of potential harms from lung cancer screening for higher-risk individuals? The harms of LDCT lung cancer screening include false positive tests and the consequences of unnecessary invasive follow-up procedures for conditions that are eventually diagnosed as benign. While LDCT screening leads to an increased frequency of invasive procedures, it does not result in greater mortality soon after an invasive procedure (in trial settings when compared with the control arm).(8) Overdiagnosis, exposure to radiation, psychological distress and an impact on quality of life are other known harms. Systematic review evidence indicates the benefits of LDCT screening are likely to outweigh the harms. The potential harms are likely to be reduced as refinements are made to LDCT screening protocols through: i) the application of risk predication models (e.g. the PLCOm2012), which enable a more accurate selection of the high-risk population through the use of specific criteria (beyond age and smoking history); ii) the use of nodule management algorithms (e.g. Lung-RADS, PanCan), which assist in the diagnostic evaluation of screen-detected nodules and cancers (e.g. more precise volumetric assessment of nodules); and, iii) more judicious selection of patients for invasive procedures. Recent evidence suggests a positive LDCT result may transiently increase psychological distress but does not have long-term adverse effects on psychological distress or health-related quality of life (HRQoL). With regards to smoking cessation, there is no evidence to suggest screening participation invokes a false sense of assurance in smokers, nor a reduction in motivation to quit. The NELSON and Danish trials found no difference in smoking cessation rates between LDCT screening and control groups. Higher net cessation rates, compared with general population, suggest those who participate in screening trials may already be motivated to quit. Question 3: What are the main components of recent major lung cancer screening programs or trials? There are no systematic reviews that capture the main components of recent major lung cancer screening trials and programs. We extracted evidence from original studies and clinical guidance documents and organised this into key groups to form a concise set of components for potential implementation of a national lung cancer screening program in Australia: 1. Identifying the high-risk population: recruitment, eligibility, selection and referral 2. Educating the public, people at high risk and healthcare providers; this includes creating awareness of lung cancer, the benefits and harms of LDCT screening, and shared decision-making 3. Components necessary for health services to deliver a screening program: a. Planning phase: e.g. human resources to coordinate the program, electronic data systems that integrate medical records information and link to an established national registry b. Implementation phase: e.g. human and technological resources required to conduct LDCT examinations, interpretation of reports and communication of results to participants c. Monitoring and evaluation phase: e.g. monitoring outcomes across patients, radiological reporting, compliance with established standards and a quality assurance program 4. Data reporting and research, e.g. audit and feedback to multidisciplinary teams, reporting outcomes to enhance international research into LDCT screening 5. Incorporation of smoking cessation interventions, e.g. specific programs designed for LDCT screening or referral to existing community or hospital-based services that deliver cessation interventions. Most original studies are single-institution evaluations that contain descriptive data about the processes required to establish and implement a high-risk population-based screening program. Across all studies there is a consistent message as to the challenges and complexities of establishing LDCT screening programs to attract people at high risk who will receive the greatest benefits from participation. With regards to smoking cessation, evidence from one systematic review indicates the optimal strategy for incorporating smoking cessation interventions into a LDCT screening program is unclear. There is widespread agreement that LDCT screening attendance presents a ‘teachable moment’ for cessation advice, especially among those people who receive a positive scan result. Smoking cessation is an area of significant research investment; for instance, eight US-based clinical trials are now underway that aim to address how best to design and deliver cessation programs within large-scale LDCT screening programs.(9) Question 4: What is the cost-effectiveness of lung cancer screening programs (include studies of cost–utility)? Assessing the value or cost-effectiveness of LDCT screening involves a complex interplay of factors including data on effectiveness and costs, and institutional context. A key input is data about the effectiveness of potential and current screening programs with respect to case detection, and the likely outcomes of treating those cases sooner (in the presence of LDCT screening) as opposed to later (in the absence of LDCT screening). Evidence about the cost-effectiveness of LDCT screening programs has been summarised in two systematic reviews. We identified a further 13 studies—five modelling studies, one discrete choice experiment and seven articles—that used a variety of methods to assess cost-effectiveness. Three modelling studies indicated LDCT screening was cost-effective in the settings of the US and Europe. Two studies—one from Australia and one from New Zealand—reported LDCT screening would not be cost-effective using NLST-like protocols. We anticipate that, following the full publication of the NELSON trial, cost-effectiveness studies will likely be updated with new data that reduce uncertainty about factors that influence modelling outcomes, including the findings of indeterminate nodules. Gaps in the evidence There is a large and accessible body of evidence as to the effectiveness (Q1) and harms (Q2) of LDCT screening for lung cancer. Nevertheless, there are significant gaps in the evidence about the program components that are required to implement an effective LDCT screening program (Q3). Questions about LDCT screening acceptability and feasibility were not explicitly included in the scope. However, as the evidence is based primarily on US programs and UK pilot studies, the relevance to the local setting requires careful consideration. The Queensland Lung Cancer Screening Study provides feasibility data about clinical aspects of LDCT screening but little about program design. The International Lung Screening Trial is still in the recruitment phase and findings are not yet available for inclusion in this Evidence Check. The Australian Population Based Screening Framework was developed to “inform decision-makers on the key issues to be considered when assessing potential screening programs in Australia”.(10) As the Framework is specific to population-based, rather than high-risk, screening programs, there is a lack of clarity about transferability of criteria. However, the Framework criteria do stipulate that a screening program must be acceptable to “important subgroups such as target participants who are from culturally and linguistically diverse backgrounds, Aboriginal and Torres Strait Islander people, people from disadvantaged groups and people with a disability”.(10) An extensive search of the literature highlighted that there is very little information about the acceptability of LDCT screening to these population groups in Australia. Yet they are part of the high-risk population.(10) There are also considerable gaps in the evidence about the cost-effectiveness of LDCT screening in different settings, including Australia. The evidence base in this area is rapidly evolving and is likely to include new data from the NELSON trial and incorporate data about the costs of targeted- and immuno-therapies as these treatments become more widely available in Australia.
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Glazer, Itamar, Randy Gaugler, Daniel Segal, Parwinder Grewal, Yitzhak Spiegel, and Senthamizh Selvan. Genetic Enhancement of Environmental Stability and Efficacy of Entomopathogenic Nematodes for Biological Control. United States Department of Agriculture, August 1995. http://dx.doi.org/10.32747/1995.7695833.bard.
Full textAbstract:
The overall obejctive of the research project was to enhance the intrinsic biological control potential of entomopathogenic nematodes through genetic manipulation. We have chosen heat and desiccation tolerance as prime traits to be enhanced in order to increase the overall efficacy of these nematodes against insect pests under harsh conditions. Initially, we used mutagenesis and selection approaches to enhance these traits. In the mutagenesis experiments several morphological mutants of Heterorhabditis bacteriophora HP88 were isolated and characterized phenotypically and genetically. Infective juveniles of H. bacteriophora HP88 were subjected to heat and desiccation selection regimes for several generations. Small increase was recorded, after 4 and 6 rearing cycles for both traits. However, in both selection regimes a significant deterioration in the reproductive capability of the nematodes was observed. In a screen of new nematode populations, from arid regions in Israel, a heat tolerant (IS5 strain) and desiccation tolerant (IS6 strain) were isolated. Both strains were taxonomically identified and their beneficial characteristics (environmental tolerance, insecticidal virulence and reproduction) were determined. We further investigated the stability of the enhanced heat tolerance trait in, and the storage capacity of, the newly discovered IS5 strain. Genetic studies demonstrated that the heat tolerance of the IS5 strain is genetically based and is dominant. The trait for heat tolerance was transferred from the IS5 strain to the HP88 strain of H. bacteriophora. The transfer was accomplished by allowing the heat tolerant strain (IS5) to mate with the commercial strain (HP88). The hybrid nature of the progeny was confirmed using a recessive marker mutant of the HP88 strain (H-dpy-2). We have used (RAPD-PCR) to compare genetic variation in the IS5 and the HP88 strains of H. baceriophora. The results indicated that genetic variation in the HP88 was significantly less than in the IS5 strain which was recently isolated from the field. The new IS5 strain may be used as an effective biological control agent in warm environments. In addition, IS5 can be used as a genetic source for cross-hybridization with other H. bacteriophora strains.
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An assessment of community-based family planning programs in Kenya. Population Council, 1997. http://dx.doi.org/10.31899/rh1997.1006.
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Kenya has a long history of using community-based distribution (CBD) as an integral part of its family planning (FP) program. The purpose of this study was to assess the role of CBD programs in terms of providing information and services, to learn more about the determinants of program effectiveness, and to attempt to compare the programs’ cost-effectiveness. Fieldwork was undertaken in mid-1995 when data were collected from seven of the major CBD programs in Kenya. Four rural and three urban programs were included, as were programs that remunerated their agents and those that did not, and programs that had full-time agents and those that had part-time agents. Data on the programs themselves were collected from records and from interviews with managers and staff, as well as from a sample of CBD agents. Data were also collected from representative samples of the population living in the agents’ catchment areas. Key findings and programmatic recommendations are provided in this report.