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Journal articles on the topic 'Registres de cancers'

Author: Grafiati
Published: 30 November 2024

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1

Abid, L. "Épidémiologie des cancers en Algérie: problématique des registres des cancers." Journal africain du cancer / African Journal of Cancer 1, no. 2 (May 2009): 98–103. http://dx.doi.org/10.1007/s12558-009-0019-y.

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2

Launoy, Guy. "Cancer : les causes de l’augmentation du nombre de cas en France." Questions de santé publique, no. 4 (April 2009): 1–4. http://dx.doi.org/10.1051/qsp/2009004.

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Le nombre de cancers a doublé entre 1980 et 2008 en France, alors que la mortalité par cancer ne cesse de diminuer. Grâce aux 21 registres de cancer, coordonnés par le réseau FRANCIM, 20 % à 25 % des nouveaux cas sont enregistrés et des estimations nationales régulières peuvent être fournies. Près de la moitié de l’augmentation du nombre de cas de cancers est due à l’augmentation de la population française et à son vieillissement. Si l’on prend en compte ces évolutions, l’augmentation du nombre de cas est d’abord due aux modifications des pratiques de soins : développement des techniques d’imagerie diagnostique et surtout extension des dépistages. Pour certains cancers, la question de la pertinence de la pratique actuelle de dépistage doit néanmoins être posée.
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3

Sommelet, D., J. Clavel, and B. Lacour. "Apport des registres nationaux des cancers de l'enfant : surveillance et recherche." Archives de Pédiatrie 12, no. 6 (June 2005): 814–16. http://dx.doi.org/10.1016/j.arcped.2005.04.039.

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4

Aubert, M., and Y. Panis. "Wasmuth HH, Færden AE, Myklebust TÅ, et al (2020) Transanal total mesorectal excision for rectal cancer has been suspended in Norway. Br J Surg 107:121–30." Côlon & Rectum 14, no. 3 (July 29, 2020): 155–58. http://dx.doi.org/10.3166/cer-2020-0146.

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Contexte : L’exérèse totale du mésorectum par voie transanale (TaTME) pour la prise en charge du cancer du rectum est récemment apparue comme alternative à l’exérèse totale du mésorectum par voie abdominale. Cependant, certaines inquiétudes à propos des résultats oncologiques de cette technique chirurgicale ont émergé. Le but de cette étude était d’évaluer le taux de récidives locales après TaTME. Les objectifs secondaires s’intéressaient à la mortalité postopératoire, au taux de fistule anastomotique et au taux de stomie définitive. Méthodes : Les données de tous les patients opérés par TaTME ont été rapportées et comparées aux données issues des registres nationaux norvégiens de cancers colorectaux (NCCR) et de chirurgie gastro-intestinale (NoRGast). Les taux de récidive locale étaient estimés selon Kaplan-Meier. Résultats : En Norvège, 157 patients ont été opérés par TaTME pour un cancer du rectum entre octobre 2014 et octobre 2018. Trois des sept centres hospitaliers participants ont abandonné la réalisation de cette intervention après cinq procédures. Le taux de récidive locale était de 12 sur 157 patients (7,6 %) ; huit récidives locales étaient multifocales ou étendues. Le taux de récidive locale après un suivi de à 2,4 ans était estimé à 11,6 % (IC 95 % : [6,6‒19,9]) après TaTME contre 2,4 % (IC 95 % : [1,4‒4,4]) dans le registre NCCR (p < 0,001). Le hasard ratio était estimé à 6,71 (IC 95 % : [2,94‒15,32]). Le taux de fistule anastomotique nécessitant une réintervention était de 8,4 % dans le groupe TaTME contre 4,5 % dans le registre NoRGast (p = 0,047). Cinquante-six patients (35,7 %) étaient porteurs d’une stomie à la fin du suivi, dont 39 (24,8 %) étaient définitives. Conclusion : Le taux de fistule anastomotique était plus élevé après TaTME en comparaison aux données des registres nationaux norvégiens. Le taux de récidive locale ainsi que les caractéristiques de cette récidive après TaTME étaient défavorables.
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5

Grosclaude, P., C. Dentan, B. Trétarre, M. Velten, E. Fournier, and F. Molinié. "Les bases médico-administratives pour la surveillance des cancers. Comparaison avec les registres." Revue d'Épidémiologie et de Santé Publique 60 (September 2012): S65—S66. http://dx.doi.org/10.1016/j.respe.2012.06.079.

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6

Baysson, H., T. Roué, S. Caër-Lorho, S. Bara, D. Degré, A. Collignon, A. Acker, and D. Laurier. "Croisement des données d’incidence de cancer issues d’un service de santé au travail avec celles issues de registres de cancers." Archives des Maladies Professionnelles et de l'Environnement 74, no. 6 (December 2013): 674. http://dx.doi.org/10.1016/j.admp.2013.09.034.

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7

Roué, T., H. Baysson, S. Caër-Lorho, D. Degré, A. Collignon, A. Acker, P. Laroche, X. Troussard, S. Bara, and D. Laurier. "Croisement des données d’incidence de cancer issues d’un service de santé au travail avec celles issues de registres de cancers." Archives des Maladies Professionnelles et de l'Environnement 76, no. 3 (June 2015): 231–36. http://dx.doi.org/10.1016/j.admp.2014.10.007.

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8

Bossard, N., M. Velten, L. Remontet, A. Belot, S. Bara, A. M. Bouvier, A. V. Guizard, et al. "Survie des patients atteints de cancer en France: principaux résultats de la première étude du réseau des registres français des cancers (Francim)." Oncologie 9, no. 7-8 (August 2007): 574–80. http://dx.doi.org/10.1007/s10269-007-0721-2.

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9

Martin-Scholz, Anja, Anne Mayère, and François Lambotte. "Rendre compte du travail d’instauration et d’assemblage des données en santé : le cas de Registres des cancers en France." Communication et organisation, no. 59 (June 1, 2021): 215–30. http://dx.doi.org/10.4000/communicationorganisation.10195.

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10

Raymond, L., F. Levi, and A. J. Tuyns. "Cancers recto-coliques: épidémiologie, dépistage et follow-up Thème d'un symposium organisé par l'Association suisse des registres des tumeurs." Sozial- und Präventivmedizin SPM 31, no. 2 (March 1986): 65. http://dx.doi.org/10.1007/bf02091583.

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11

De Camargo Cancela, M., F. Chapuis, J. P. Auray, and M. P. Curado. "Cancers de la cavité orale et de l’oropharynx : stade lors du diagnostic dans les registres de cancer populationnels, 1998–2002, une étude internationale." Revue d'Épidémiologie et de Santé Publique 58 (September 2010): S82—S83. http://dx.doi.org/10.1016/j.respe.2010.06.114.

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12

Wilson, Sarah, Joséphine Gardy, Anne-Valérie Guizard, Véronique Bouvier, Francim Groupe, and Guy Launoy. "Association entre l’accès aux soins primaires et la mortalité en excès des patients atteints de cancers en France : résultats portant sur l’étude de 21 registres de cancers français." Santé Publique 36, HS1 (September 26, 2024): 1. http://dx.doi.org/10.3917/spub.hs1.2024.0001.

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13

Hammas, K., C. Nardin, S. Boyer, C. Michel, F. Aubin, and A. S. Woronoff. "Incidence du carcinome basocellulaire en France et tendances entre 1980 et 2019 : étude en population à partir de registres des cancers." Annales de Dermatologie et de Vénéréologie - FMC 3, no. 8 (December 2023): A103. http://dx.doi.org/10.1016/j.fander.2023.09.111.

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14

Carré, N., Z. Uhry, M. Velten, B. Trétarre, C. Schvartz, F. Molinié, N. Maarouf, et al. "Valeur prédictive et sensibilité du programme de médicalisation des systèmes d’information (PMSI) par rapport aux registres des cancers : application au cancer de la thyroïde (1999-2000)." Revue d'Épidémiologie et de Santé Publique 54, no. 4 (September 2006): 367–76. http://dx.doi.org/10.1016/s0398-7620(06)76731-1.

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15

Mitton, N., L. Remontet, N. Bossard, and M. Colonna. "Estimations départementales de l’incidence des cancers en 2007 à partir des données des registres et des données du programme de médicalisation des systèmes d’information, France." Revue d'Épidémiologie et de Santé Publique 58 (April 2010): S13—S14. http://dx.doi.org/10.1016/j.respe.2010.02.029.

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16

Cherif, M. Hamdi. "Implementation and Incidence Data of Cancer Registries Network in Algeria." Journal of Global Oncology 4, Supplement 2 (October 1, 2018): 154s. http://dx.doi.org/10.1200/jgo.18.66000.

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Background and context: Cancer is becoming a true health public problem in Algeria in the last years. The National Cancer Plan (2015-2019), has given a priority to cancer registration, and the Ministry of Health proceeded to the institutionalization of cancer registries. Aim: The objective is to implement a cancer registries network covering a large population, and provide cancer incidence data for Algeria. Strategy/Tactics: Regional organization of the cancer registries network. Training of coordinators of cancer registries on cancer registration tools. The new cases recorded were from 18 registers covering a population of 20,224,844, from a general population of 38,700,000 inhabitants for the year 2014. The data are entered and analyzed by the CanReg software 5, provided by IARC. Program/Policy process: The cancer registries network covers is becoming an important tool for the cancer control in Algeria. It provides data public health and cancer research. Outcomes: The coverage of national registration rate is 82% with 52% of cancer registries were validated. The number of new cases during the year 2014 is 41,870 cases (16,748 men and 25,122 women). The overall crude rate is 106/100,000 (h), the standardized rate is 114.5/100,000. Crude and standardized rates in men are respectively 100.2 and 109.2/100,000. In women are respectively 111.8 and 119.8/100,000. In men, frequent cancers are lung, colon-rectum, bladder, prostate, stomach, pharynx naso, NHL, larynx and leukemia cancers. In women, breast cancers followed by colorectal, cervical, thyroid, NHL, stomach, biliary and leukemia cancers.
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17

Okuyama, Ayako, Yoichiro Tsukada, and Takahiro Higashi. "Coverage of the hospital-based cancer registries and the designated cancer care hospitals in Japan." Japanese Journal of Clinical Oncology 51, no. 6 (April 14, 2021): 992–98. http://dx.doi.org/10.1093/jjco/hyab036.

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Abstract Background Hospital-based cancer registries were developed to describe and improve clinical care for cancer patients. We described the hospital-based cancer registry coverage as a reference for the users, including researchers, policymakers and clinicians. Methods The hospital-based cancer registry coverage was defined as the proportion of new cases registered in the hospital-based cancer registry to the National Cancer Registry as the denominator. To examine the coverage of respective cancer types, age groups and prefecture in the hospital-based cancer registry, cases were grouped based on the 10th International Statistical Classification of Diseases and Related Health Problems and were compared with the published report of the National Cancer Registry in 2017. Results The overall hospital-based cancer registries coverage was 71.7%, and 52.5% of patients were treated at designated cancer care hospitals. The hospital-based cancer registries coverage and treatment rates at designated cancer care hospitals varied per cancer type, age group, and prefecture. The hospital-based cancer registries covered over 80% of the patients with cancers of the larynx, uterus, oesophagus, lip, oral cavity, pharynx and skin, whereas patients’ coverage with thyroid cancer was relatively low. The hospital-based cancer registry coverage of young patients (&lt;15 years) was &gt;80%, whereas that for elderly patients (≥85 years) was &lt;55%. The range of coverage in each prefecture was from 43.0 to 89.7%. Over 70% of the patients with cancers of the larynx, lip, oral cavity and pharynx were treated at designated cancer care hospitals. Conclusions The hospital-based cancer registry coverage is ~70% of all cancers. Because the coverage differed across cancers and age groups, the respective target groups’ analysis should consider this factor.
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18

Bouhidel, Mohamed Larbi, Fayçal Beichi, Atika Bouhidel, Hachani Khadraoui, Imene Benamira, Mahdia Saidi, Abdelouahab Maaref, and Hocine Bounecer. "Cancer register in the Wilaya of Batna. The 2011 report." Batna Journal of Medical Sciences (BJMS) 2, no. 2 (December 30, 2012): 126–28. http://dx.doi.org/10.48087/bjmsoa.2015.2205.

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Le registre du cancer de la wilaya de Batna est un registre de population, couvrant 1.173.852 habitants en 2011 (estimation avec un taux d’accroissement annuel de 1,58% à partir du recensement général de la population et de l’habitat RGPH 2008). Au total, 768 nouveaux cas de cancer ont été notifiés ; ce qui représente une incidence standardisée de 78,2 cas pour 100 000 habitants. Les cancers les plus fréquents chez l’homme sont respectivement : le cancer broncho-pulmonaire (12,2 cas/100 000 hbts) suivi du cancer colorectal et du cancer de la vessie. Chez la femme, le cancer du sein occupe largement le premier rang (25,2 cas/100 000 hbts) ce qui représente plus de 30% des cancers chez la femme. En deuxième position, se trouve le cancer colorectal suivi des cancers de la vésicule biliaire et de la thyroïde. La pathologie tumorale chez l’enfant (0-14 ans), dont l’incidence standardisée est de 1,9 cas/100 000 habitants, est dominée par le cancer du sang et des organes lymphoïdes.
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19

Katalinic, Alexander, Marco Halber, Martin Meyer, Maren Pflüger, Andrea Eberle, Alice Nennecke, Soo-Zin Kim-Wanner, et al. "Population-Based Clinical Cancer Registration in Germany." Cancers 15, no. 15 (August 2, 2023): 3934. http://dx.doi.org/10.3390/cancers15153934.

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Introduction: In 2013, a new federal law obligated all German federal states to collect additional clinical data in population-based cancer registries as an active tool for monitoring and improving the quality of cancer care, increasing transparency and promoting health research. Now, 10 years later, the current status of the expanded cancer registration is presented, including current figures on cancer in Germany. Methods: Reporting of cancer is mandatory for physicians, and about 5 to 10 reports from different healthcare providers are expected for each case. A uniform national dataset of about 130 items is used, and reports are usually sent electronically to the registry. We used the most recent data available from cancer registries up to the year of diagnosis in 2019. We calculated incidence rates and 5-year relative survival (5YRS) for common cancers. Data on clinical outcomes and benchmarking based on quality indicators (QIs) from guidelines were provided by the Cancer Registry Schleswig-Holstein (CR SH). Results: All federal state cancer registries met most of the previously defined national eligibility criteria. Approximately 505,000 cancer cases were registered in 2019, with breast, prostate, colorectal and lung cancer being the most common cancers. The age-standardised cancer incidence has slightly decreased during the last decade. and spatial heterogeneity can be observed within Germany. 5YRS for all cancers was 67% and 63% for women and men, respectively. Therapy data for rectal cancer in 2019–2021 from the CR SH are shown as an example: 69% of the registered patients underwent surgery, mostly with curative intent (84%) and tumour-free resection (91%). Radiotherapy was given to 33% of the patients, and chemotherapy was given to 40%. Three selected QIs showed differences between involved healthcare providers. Discussion: The implementation of population-based clinical cancer registration can be considered a success. Comprehensive recording of diagnosis, treatment and disease progression and the use of registry data for quality assurance, benchmarking and feedback have been implemented.
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20

Hawkins, M. M. "Multiple primary cancers in population-based cancer registries." European Journal of Cancer 32, no. 8 (July 1996): 1279–80. http://dx.doi.org/10.1016/0959-8049(96)00095-0.

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21

Poudel, Krishna Kanta, Zhibi Huang, Prakash Raj Neupane, Roberta Steel, and Janaki Kharel Poudel. "Hospital-Based Cancer Incidence in Nepal from 2010 to 2013." Nepal Journal of Epidemiology 7, no. 1 (July 13, 2017): 659–65. http://dx.doi.org/10.3126/nje.v7i1.17759.

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Background: Cancer is one of the leading causes of death throughout the world. Analyzing the incidence of cancer by site, sex and age is essential to detect the burden of cancer. Throughout the twelve hospital based cancer registries of Nepal, a total of 29,802 cancer cases with known age, were registered from January 1st 2010 to 2013 December 31st. The purpose of this retrospective study is to present the incidence of all cancer sites in both males and females for this period.Materials and Methods: This paper reviews data from all the hospital based cancer registries over a four-year period. This retrospective study has illustrated the number of cases, frequencies and crude incidence of all cancers by sex and site. For statistical analysis, SPSS (version 23.0) and Microsoft Excel 2010 were used.Results: Over the four-year period from January 1st 2010 to 2013 December 31st the major cancer in males was identified as follows: lung cancer (17.5%) followed by stomach cancer (7.6 %) and larynx cancer (5.4%). Among females, for the same four-year period, the three common cancers were identified as cervix (18.9 %) followed by breast (15.6 %) and lung (10.2%).Conclusion: This retrospective study concluded that cancer is being increased by calendar years both in males and females however, the incidence of cancer is higher in females compared to males.
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Pandey, Avinash, Shraddha Raj, Richa Madhawi, Seema Devi, and Rajesh Kumar Singh. "Cancer trends in Eastern India: Retrospective hospital-based cancer registry data analysis." South Asian Journal of Cancer 08, no. 04 (October 2019): 215–17. http://dx.doi.org/10.4103/sajc.sajc_321_18.

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Abstract Background: Trends of cancer cases vary across several hospital-based cancer registries (HBCRs). There is a paucity of demographic data to evaluate trends of cancer in Eastern India. Aim: The aim of this study is to evaluate trends and pattern of cancer cases with respect to time from HBCR from Bihar. Objectives: The objective of this study is to evaluate the numbers of consecutive patients registered with eight most common type of cancer in our HBCR in Regional Cancer Centre, Bihar, and to evaluate trends of cancer cases registered with respect to time. Materials and Methods: Demographic profile of consecutive cancer patients registered from January 2014 to December 2016 (3 years) in HBCR was obtained. Patients diagnosed with common malignancies including head-and-neck cancer, gallbladder, breast, cervix, ovary, esophagus, stomach, hematolymphoid, and colorectal were analyzed. Frequency distribution, crosstabs, and line diagram were used to evaluate the trends of these common cancers with respect to time. Results: Sixty-six thousand and twenty-nine consecutive patients were registered between 2014 and 2016. Carcinoma gallbladder was the most common malignancy (21%), followed by head-and-neck cancer (19%) and breast cancer (15%). Median age at the diagnosis was 55 years for carcinoma gallbladder while 53 years and 46 years for head-and-neck and breast cancer, respectively. Male-to-female ratio was 0.6 for carcinoma gallbladder and 1.8 for head-and-neck cancer. A number of gallbladder and head-and-neck cancer registered increased by 36% (between 2014 and 2015) and 5% (between 2015 and 2016) and 24% (between 2014 and 2015) and 4% (between 2015 and 2016), respectively. Carcinoma breast and cervix showed decreasing trend with fall in registration up to 13% (between 2015 and 2016) and 27% (between 2015 and 2016), respectively. Conclusion: Carcinoma gallbladder is the most common cancer in Bihar. Head-and-neck cancer and carcinoma gallbladder are increasing while breast and cervical cancers are decreasing with respect to time.
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Skytthe, Axel, Jennifer R. Harris, Kamila Czene, Lorelei Mucci, Hans-Olov Adami, Kaare Christensen, Jacob Hjelmborg, et al. "Cancer Incidence and Mortality in 260,000 Nordic Twins With 30,000 Prospective Cancers." Twin Research and Human Genetics 22, no. 2 (April 2019): 99–107. http://dx.doi.org/10.1017/thg.2019.10.

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AbstractThe Nordic countries have comprehensive, population-based health and medical registries linkable on individually unique personal identity codes, enabling complete long-term follow-up. The aims of this study were to describe the NorTwinCan cohort established in 2010 and assess whether the cancer mortality and incidence rates among Nordic twins are similar to those in the general population. We analyzed approximately 260,000 same-sexed twins in the nationwide twin registers in Denmark, Finland, Norway and Sweden. Cancer incidence was determined using follow-up through the national cancer registries. We estimated standardized incidence (SIR) and mortality (SMR) ratios with 95% confidence intervals (CI) across country, age, period, follow-up time, sex and zygosity. More than 30,000 malignant neoplasms have occurred among the twins through 2010. Mortality rates among twins were slightly lower than in the general population (SMR 0.96; CI 95% [0.95, 0.97]), but this depends on information about zygosity. Twins have slightly lower cancer incidence rates than the general population, with SIRs of 0.97 (95% CI [0.96, 0.99]) in men and 0.96 (95% CI [0.94, 0.97]) in women. Testicular cancer occurs more often among male twins than singletons (SIR 1.15; 95% CI [1.02, 1.30]), while cancers of the kidney (SIR 0.82; 95% CI [0.76, 0.89]), lung (SIR 0.89; 95% CI [0.85, 0.92]) and colon (SIR 0.90; 95% CI [0.87, 0.94]) occur less often in twins than in the background population. Our findings indicate that the risk of cancer among twins is so similar to the general population that cancer risk factors and estimates of heritability derived from the Nordic twin registers are generalizable to the background populations.
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Cogle, Christopher R., Ashley Cole, Iman Imanirad, Leena Kamat, Daohai Yu, Alan F. List, and Dana E. Rollison. "A Keyword Search Strategy to Identify Missed Cases of Myelodysplastic Syndromes in Population-Based Cancer Registries." Blood 114, no. 22 (November 20, 2009): 4852. http://dx.doi.org/10.1182/blood.v114.22.4852.4852.

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Abstract Abstract 4852 BACKGROUND Myelodysplastic syndromes (MDS) were reclassified from blood disorders to neoplasms in the tenth edition of the International Classification of Diseases and, as a result, became reportable malignancies to population-based cancer registries in 2001. Recent analyses of data from the North American Association of Central Cancer Registries (NAACCR), which includes registries reporting to the National Cancer Institute's Surveillance, Epidemiology, and End Results (SEER) Program, provided the first opportunity to investigate the incidence and survival of patients with myelodysplastic syndromes (MDS) in the U.S. However, several lines of evidence suggest that reported MDS incidence rates are considerably underestimated (Rollison, Blood 2008). Due to the unique patterns in diagnosis and treatment of MDS, many MDS patients may not access hospital-based care, particularly during the early stages of their disease. These cases are potentially missed by population-based cancer registries if they are not routinely reported to such registries by their private physicians. Given the potential for under-reporting, it was hypothesized that the true incidence of MDS is higher than currently estimated by population-based cancer registries and that previously missed MDS cases could be identified through careful systematic review of electronic pathology reports obtained from private laboratories. To test this hypothesis, a feasibility pilot study was initiated in collaboration with the Florida Cancer Data System (FCDS), the statewide cancer registry, which uses electronic pathology (E-Path) reporting. METHODS All E-Path reports sent by private pathology laboratories to FCDS in 2006 were queried using MDS keyword terms, including words and phrases potentially representative of MDS (e.g., myelodysplastic, ringed sideroblast, Pelger-Huet, etc.). E-path reports that matched one or more of the search terms were compared to the FCDS database to distinguish E-path reports that corresponded to individuals already in the FCDS database from those that corresponded to individuals who were not in the FCDS database. For those individuals within the FCDS database that linked to one or more E-path reports, demographic characteristics were compared between those with a previous MDS diagnosis recorded in MDS and those with one or more diagnoses of cancers other than MDS. Within the latter group, E-path reports were categorized by number of keyword hits, and a random sample of 50 E-path reports from each category were reviewed by a single hematologist/oncologist (CRC) to confirm the diagnosis of MDS. The percentage of missed cases was calculated as the number of E-path reports that were determined to be MDS divided by the number of E-path reports reviewed. RESULTS The initial query captured 121,279 E-path reports. After excluding 40,894 duplicate records, 80,385 unique E-path reports were identified, of which 19,812 linked to a cancer patient registered in FCDS. Of those 19,812 E-path reports, 1,452 (7%) linked to patients for whom a diagnosis of MDS was recorded in FCDS, and 18,357 linked to patients with cancer diagnoses other than MDS. The probability of an E-path report linking to an MDS case increased with the number of keyword hits in the E-path report (p <0.0001). As compared to FCDS-registered patients with cancers other than MDS who linked to an E-path report matching at least one MDS keyword, those registered with MDS were older (p<0.0001) and more likely to be male (p = 0.0002). Based on the review of 200 randomly selected cases, the overall percentage of missed MDS cases was 3.5%, with the percentage increasing with number of keyword hits. For reports deemed non-MDS by the cancer registry yet matching 6+ MDS keywords, at least 14% were missed cases of MDS. CONCLUSION This pilot study demonstrated the potential for MDS cases to be missed, even when the patients are already registered as having another type of cancer in population-based cancer registries. Application of a keyword search strategy to identify missed cases of MDS among electronic pathology reports is a feasible technique for improving case ascertainment of MDS in population-based cancer registries. Given the existence of missed MDS cases, it is likely that MDS incidence rates are underestimated at the population level. Disclosures No relevant conflicts of interest to declare.
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Noone, Anne-Michelle, Clara J. K. Lam, Angela B. Smith, Matthew E. Nielsen, Eric Boyd, Angela B. Mariotto, and Mousumi Banerjee. "Machine Learning Methods to Identify Missed Cases of Bladder Cancer in Population-Based Registries." JCO Clinical Cancer Informatics, no. 5 (June 2021): 641–53. http://dx.doi.org/10.1200/cci.20.00170.

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PURPOSE Population-based cancer incidence rates of bladder cancer may be underestimated. Accurate estimates are needed for understanding the burden of bladder cancer in the United States. We developed and evaluated the feasibility of a machine learning–based classifier to identify bladder cancer cases missed by cancer registries, and estimated the rate of bladder cancer cases potentially missed. METHODS Data were from population-based cohort of 37,940 bladder cancer cases 65 years of age and older in the SEER cancer registries linked with Medicare claims (2007-2013). Cases with other urologic cancers, abdominal cancers, and unrelated cancers were included as control groups. A cohort of cancer-free controls was also selected using the Medicare 5% random sample. We used five supervised machine learning methods: classification and regression trees, random forest, logic regression, support vector machines, and logistic regression, for predicting bladder cancer. RESULTS Registry linkages yielded 37,940 bladder cancer cases and 766,303 cancer-free controls. Using health insurance claims, classification and regression trees distinguished bladder cancer cases from noncancer controls with very high accuracy (95%). Bacille Calmette-Guerin, cystectomy, and mitomycin were the most important predictors for identifying bladder cancer. From 2007 to 2013, we estimated that up to 3,300 bladder cancer cases in the United States may have been missed by the SEER registries. This would result in an average of 3.5% increase in the reported incidence rate. CONCLUSION SEER cancer registries may potentially miss bladder cancer cases during routine reporting. These missed cases can be identified leveraging Medicare claims and data analytics, leading to more accurate estimates of bladder cancer incidence.
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Saldaña Espinel, Laura Estefania, Andres Felipe Patiño Benavidez, Nicolás Rozo Agudelo, Oscar Andres Gamboa Garay, Juan Esteban Paneso Echeverry, Marcela Bernal Gutierrez, Kenndy Arevalo Pereira, and Giancarlo Buitrago. "Estimating breast, stomach, and colorectal cancer incidence in Colombia through administrative database algorithms: A systematic review of literature and real-world data study." Journal of Clinical Oncology 39, no. 15_suppl (May 20, 2021): e18810-e18810. http://dx.doi.org/10.1200/jco.2021.39.15_suppl.e18810.

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e18810 Background: Breast, stomach and colorectal cancers have high incidence in Colombia. Official cancer incidence registries depend upon sentinel site reports as there is no nationwide surveillance system. We aimed to identify administrative database algorithms for breast, stomach and colorectal cancer case selection and to compare their cancer incidence estimates to official registries. Methods: We conducted a systematic review to identify algorithms with high positive predictive values (VPP) for breast, stomach and colorectal cancer case identification in administrative databases. For each cancer we selected two algorithms: a sensitive algorithm, based on cancer-specific ICD-10 codes, and a specific algorithm, combining cancer-specific ICD-10 codes with at least one code for oncological procedures. We varied the number of months a cancer-specific ICD-10 code was registered within each algorithm to test for algorithm stability. We conducted a cohort study to estimate incident cancer cases for 2013 in four cancer sentinel cities in Colombia and one cancer reference center using both algorithms. We defined incident cases as cases lacking a cancer-specific ICD-10 code in the preceding two years and adjusted incident cases for type of regimen affiliation. Algorithms with results closest to official sources were selected as best performing algorithms. We used the contributive regimen Capitation Payment Unit administrative database of Colombia for 2011-2014 as source of information. Results: Breast cancer case-identification algorithms have a higher VPP reported in literature (83-100%) compared to colorectal (41.7-94%) and stomach cancer (35-59.7%) algorithms. The closest breast cancer incidence estimates to the official registries Infocancer and National Cancer Institute were yielded by the specific algorithm with ICD-10 codes persisting for four months (n= 672 vs 649 and 397 vs 212, respectively). The closest colorectal cancer cancer incidence estimates to official registries were yielded by the specific algorithm with ICD-10 codes persisting for three months (n= 219 vs 230 and 168 vs 139, respectively). The closest stomach cancer incidence estimates to official registries were yielded by the specific algorithm with ICD-10 codes persisting for one month (n= 122 vs 146 and 99 vs 153, respectively). Sensitive algorithms were less stable than specific algorithms across all three cancer types. Conclusions: Breast, stomach and colorectal incident cancer cases can be identified through administrative databases. VPP vary among types of algorithms and cancers. Specific algorithms provide better breast and colorectal incident cancer case-identification in Colombian administrative databases, compared to stomach cancer algorithms. This is a potential approach for estimating nationwide cancer incidence in Colombia.
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Capocaccia, Riccardo, Carlotta Buzzoni, Enrico Grande, Riccardo Inghelmann, Francesco Bellù, Tiziana Cassetti, Margherita de Dottori, et al. "Estimated and Observed Cancer Incidence in Italy: A Validation Study." Tumori Journal 93, no. 4 (July 2007): 387–91. http://dx.doi.org/10.1177/030089160709300410.

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Aims and background The study aimed to validate model-based incidence estimates by means of observed incidence rates provided by Italian cancer registries, for five major cancer sites (stomach, colon and rectum, lung, breast and prostate cancers) and for all cancers together. Methods Recent incidence rates observed by Italian population-based cancer registries were extracted from the data base of the Italian Association of Cancer Registries. Regional estimates of incidence rates for the same cancers were obtained by the MIAMOD method. Observed and estimated crude incidence rates and incidence trends were compared for the period of diagnosis 1985-2000. Eight Italian cancer registries and seven regions were selected for the analysis since they had incidence data available during the entire selected period. Results and conclusions An excellent agreement between estimated and observed crude incidence rates was found for all single cancer sites, regarding absolute incidence levels and time trends. A partial exception was breast, where empirical data showed a sudden increase in the last three years of observation, perhaps due to organized screenings in some Italian regions, and not captured by statistical models. Substantial underestimation of model-based incidence rates was found for all cancers combined, where the difference tended to increase with calendar year, up to a maximum of 20% in recent years. The greatest part of the discrepancy can be attributed to multiple cancers, which were included in cancer registries statistics but were not accounted for in MIAMOD estimates.
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Kry, S. F., and R. M. Howell. "Second solid cancers after radiotherapy for breast cancer in SEER cancer registries." Breast Diseases: A Year Book Quarterly 21, no. 3 (January 2010): 271–72. http://dx.doi.org/10.1016/s1043-321x(10)79599-0.

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Berrington de Gonzalez, A., R. E. Curtis, E. Gilbert, C. D. Berg, S. A. Smith, M. Stovall, and E. Ron. "Second solid cancers after radiotherapy for breast cancer in SEER cancer registries." British Journal of Cancer 102, no. 1 (November 24, 2009): 220–26. http://dx.doi.org/10.1038/sj.bjc.6605435.

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Ravn, Sissel, Christian F. Christiansen, Rikke H. Hagemann-Madsen, Victor J. Verwaal, and Lene H. Iversen. "The Validity of Registered Synchronous Peritoneal Metastases from Colorectal Cancer in the Danish Medical Registries." Clinical Epidemiology Volume 12 (March 2020): 333–43. http://dx.doi.org/10.2147/clep.s238193.

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Krishnatreya, Manigreeva. "Epidemiological research on cancers by cancer registries: A view point." South Asian Journal of Cancer 04, no. 01 (January 2015): 050. http://dx.doi.org/10.4103/2278-330x.149957.

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Levi, Fabio, Lalao Randimbison, Blanc-Moya Rafael, Maspoli-Conconi Manuela, and Carlo La Vecchia. "Second primary cancers in the Vaud and Neuchâtel Cancer Registries." European Journal of Cancer Prevention 24, no. 2 (March 2015): 150–54. http://dx.doi.org/10.1097/cej.0000000000000085.

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Yuan, Shuai, and Shao-Hua Xie. "Urban–rural disparity in cancer incidence in China, 2008–2012: a cross-sectional analysis of data from 36 cancer registers." BMJ Open 11, no. 4 (April 2021): e042762. http://dx.doi.org/10.1136/bmjopen-2020-042762.

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ObjectiveThe substantial differences in socioeconomic and lifestyle exposures between urban and rural areas in China may lead to urban–rural disparity in cancer risk. This study aimed to assess the urban–rural disparity in cancer incidence in China.MethodsUsing data from 36 regional cancer registries in China in 2008–2012, we compared the age-standardised incidence rates of cancer by sex and anatomic site between rural and urban areas. We calculated the rate difference and rate ratio comparing rates in rural versus urban areas by sex and cancer type.ResultsThe incidence rate of all cancers in women was slightly lower in rural areas than in urban areas, but the total cancer rate in men was higher in rural areas than in urban areas. The incidence rates in women were higher in rural areas than in urban areas for cancers of the oesophagus, stomach, and liver and biliary passages, but lower for cancers of thyroid and breast. Men residing in rural areas had higher incidence rates for cancers of the oesophagus, stomach, and liver and biliary passages, but lower rates for prostate cancer, lip, oral cavity and pharynx cancer, and colorectal cancer.ConclusionsOur findings suggest substantial urban–rural disparity in cancer incidence in China, which varies across cancer types and the sexes. Cancer prevention strategies should be tailored for common cancers in rural and urban areas.
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Horner, Marie-Josèphe, Ande Salima, Chrissie Chilima, Matthews Mukatipa, Wiza Kumwenda, Coxcilly Kampani, Fred Chimzimu, et al. "Frequent HIV and Young Age Among Individuals With Diverse Cancers at a National Teaching Hospital in Malawi." Journal of Global Oncology, no. 4 (December 2018): 1–11. http://dx.doi.org/10.1200/jgo.17.00174.

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Purpose Cancer surveillance provides a critical evidence base to guide cancer control efforts, yet population-based coverage in Africa is sparse. Hospital-based registries may help fill this need by providing local epidemiologic data to guide policy and forecast local health care needs. We report the epidemiology of patients with cancer recorded by a de novo hospital-based cancer registry at Kamuzu Central Hospital, Malawi, the sole provider of comprehensive oncology services for half the country and location of a high-volume pathology laboratory. Methods We conducted active case finding across all hospital departments and the pathology laboratory from June 2014 to March 2016. Patient demographics, tumor characteristics, treatment, and HIV status were collected. We describe epidemiology of the cancer caseload, registry design, and costs associated with registry operations. Results Among 1,446 registered patients, Kaposi sarcoma and cervical cancer were the most common cancers among men and women, respectively. Burkitt lymphoma was most common cancer among children. The current rate of pathology confirmation is 65%, a vast improvement in the diagnostic capacity for cancer through the hospital’s pathology laboratory. Among leading cancer types, an alarming proportion occurred at young ages; 50% of Kaposi sarcoma and 25% of esophageal, breast, and cervical cancers were diagnosed among those younger than 40 years of age. A systematic, cross-sectional assessment of HIV status reveals a prevalence of 58% among adults and 18% among children. Conclusion We report a high caseload among typically young patients and a significant burden of HIV infection among patients with cancer. In low- and middle-income countries with intermittent, sparse, or nonexistent cancer surveillance, hospital-based cancer registries can provide important local epidemiologic data while efforts to expand population-based registration continue.
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Hertz, P., B. Seruga, L. W. Le, and I. F. Tannock. "Global drug development in cancer: A cross-sectional study of clinical trial registries." Journal of Clinical Oncology 27, no. 15_suppl (May 20, 2009): 2520. http://dx.doi.org/10.1200/jco.2009.27.15_suppl.2520.

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2520 Background: Clinical trials are increasingly funded by industry. High costs of drug development may lead to attempts to develop new drugs in more ‘profitable’ (i.e., more prevalent) as compared to ‘less profitable’ (i.e., more deadly) cancers. Here we determine the focus of current global drug development. Methods: We determined characteristics of phase II and III clinical trials evaluating new drugs in oncology, which were registered with WHO International Clinical Trial Registries between 01/2008 and 06/2008. Estimates of incidence, mortality, and prevalence in the more- and less-developed world (MDW, LDW) were obtained from GLOBOCAN 2002. Simple correlation analysis was performed between the number of clinical trials and incidence, mortality and prevalence per cancer site after log transformation of variables. Results: We identified 399 newly registered trials. Of 374 trials with information about recruitment, 322 (86.1%) and 39 (10.4%) recruited patients only from the MDW and LDW, respectively, while 13 (3.5%) had worldwide recruitment. 229 (58%) of trials were sponsored by industry and 324 trials were phase II (81%). Most trials (and most phase III trials) evaluated treatments for globally prevalent cancers: breast, lung, prostate, and colorectal cancer (Table). Prevalence of a particular cancer type in both the MDW and LDW correlated significantly with the number of clinical trials (Pearson r = 0.63 and 0.55; p = 0.01 and 0.03, respectively). In contrast, mortality in the MDW (Pearson r = 0.73; p= 0.002), but not in the LDW (Pearson r = 0.38; p= 0.17), correlated significantly with the number of clinical trials. Conclusions: Global drug development in cancer predominates in globally prevalent cancers, which are a more important cause of mortality in the MDW than in the LDW. Cancer sites that are major killers globally, and especially in the LDW (e.g., stomach, liver, and esophageal cancer) should receive priority for clinical research. [Table: see text] No significant financial relationships to disclose.
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Ndlovu, Babongile, and Mazvita Muchengeti. "Stakeholders in Cancer Surveillance: Addressing Gaps in Data Sources." JCO Global Oncology 10, Supplement_1 (July 2024): 170. http://dx.doi.org/10.1200/go-24-13400.

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PURPOSE Having accurate cancer incidence estimations is essential in informing decision making, driving policy and supporting intervention and evaluation programs. In South Africa (SA), cancer is a reportable medical condition that every healthcare worker is obliged to report to the National Cancer Registry (NCR) as per Regulation No 380 of the National Health Act (Act 61 of 2003). Regulation 380 also mandates the NCR to establish population-based cancer registries (PBCRs) across SA. This reports aims to describe the cancer surveillance status in SA and identify gaps in cancer surveillance. METHODS The NCR conducts pathology-based cancer registration at national level and PBCRs at sentinel sites. The national pathology registry uses passive surveillance methods and miss cases that are diagnosed elsewhere. In order for SA to be able to produce accurate cancer incidence data, there needs to be four population-based cancer registries (PBCRs). The pioneering PBCR was established in 2017 from Ekurhuleni district. In PBCRs, all cancer data sources are explored, such as medical files, pathology reports, pharmacy prescription, cancer screening, hospital admission, hospice, private practitioner's consultation, radiology, discharge, mortuary and outpatient registers. International Classification of Diseases for Oncology-3 guidelines are used for coding the site and morphology of each case. An annual cancer incidence report is released within a 2-3-year lag period. RESULTS There is currently no existing accurate incidence estimation for cancers in SA. The pathology registry, due to its nature is incomplete and in addition not all pathology groups comply to reporting. In PBCRs, a significant number of data sources are inaccessible due to non-compliance and fear of sharing confidential patient medical records. PBCRs are costly to run and there is no funding permanently allocated to it and its operations rely on grant funding. Stakeholders are not well-informed of their roles in cancer surveillance. CONCLUSION All healthcare providers need to adhere to Regulation 380 and report cancers to NCR.
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Tuffs, Annette. "Germany: Cancer registries." Lancet 336, no. 8711 (August 1990): 364–65. http://dx.doi.org/10.1016/0140-6736(90)91895-h.

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Cogle, Christopher R., Michelle R. Iannacone, Ashley Cole, Daohai Yu, Alan F. List, and Dana Rollison. "High Rate of Uncaptured Myelodysplastic Syndrome Cases at the State Cancer Registry Level." Blood 116, no. 21 (November 19, 2010): 1890. http://dx.doi.org/10.1182/blood.v116.21.1890.1890.

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Abstract Abstract 1890 The myelodysplastic syndromes (MDS) became reportable malignancies to U.S. population-based cancer registries including the Surveillance, Epidemiology and End Results (SEER) Program in 2001. Registries capture information on MDS cases through reports sent by hospitals and physicians’ offices. Electronic pathology (E-path) reports generated by private pathology laboratories are another potential source for finding cases; however, the sheer volume of E-path reports generated and the limited resources of cancer registries preclude the review of all E-path reports. Therefore, some registries rely on probability scoring based on keyword hits to identify reports most likely consistent with a diagnosis of cancer. Given the diverse morphologic features of MDS pathology and our earlier observation that MDS is often diagnosed and managed in the outpatient setting (Rollison, et al. Blood 2008), we hypothesized that MDS is often not captured by state cancer registries. To estimate the proportion of uncaptured MDS cases in Florida, all E-Path reports sent to Florida Cancer Data System (FCDS), the state cancer registry, in 2006 were queried using a unique keyword search strategy based on an algorithm of identifying bone marrow biopsy reports that met the inclusion and exclusion diagnostic terminology for MDS. Of 7,111 E-path reports identified, only 18% corresponded to individuals registered in FCDS as having been diagnosed with MDS. To estimate the percentage of uncaptured MDS cases in the remaining 82% of E-Path reports, a stratified random sample of E-path reports were reviewed by a single hematologist/oncologist to determine whether the E-path reports were consistent with MDS and to assign an MDS subtype. The strata for random sampling included: 1) reports that linked individuals registered as having been diagnosed with cancers other than MDS in FCDS (48%) versus those that did not link to FCDS (34%) and 2) four categories based on number of keyword hits. Overall, E-path reports corresponding to 285 individuals were reviewed, of which 71 were determined to have MDS. The percentage of uncaptured cases seemed to be lower for those individuals that were registered in FCDS as having a previous cancer (17%) than that for those who did not link to FCDS (28%) and increased with number of keyword hits. Based on the percentages of uncaptured cases estimated within each of the eight strata, and the distribution of those stratified factors in the total sampling frame, we estimated that 641 MDS cases were likely uncaptured, representing approximately 45% of the captured and uncaptured cases combined. Thus, current case finding mechanisms by population-based cancer registries capture approximately half of the true MDS cases. Compared to MDS cases captured by FCDS, uncaptured MDS cases were younger (< 65) (p=0.01), less likely to have Refractory Anemia (RA) and more likely to have Refractory Cytopenia with Multilineage Dysplasia (RCMD) (p=0.002). Gender and race seemed to be similar between the groups. Together, these data indicate that current population-based case finding methods are not capturing a large percentage of MDS cases. Application of a keyword search strategy to identify cases among E-Path reports is a feasible technique to improve MDS case ascertainment in population-based cancer registries until greater resources are committed. Disclosures: No relevant conflicts of interest to declare.
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Roder, David, Nicola Creighton, Deborah Baker, Richard Walton, Sanchia Aranda, and David Currow. "Changing roles of population-based cancer registries in Australia." Australian Health Review 39, no. 4 (2015): 425. http://dx.doi.org/10.1071/ah14250.

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Registries have key roles in cancer incidence, mortality and survival monitoring and in showing disparities across the population. Incidence monitoring began in New South Wales in 1972 and other jurisdictions soon followed. Registry data are used to evaluate outcomes of preventive, screening, treatment and support services. They have shown decreases in cancer incidence following interventions and have been used for workforce and other infrastructure planning. Crude markers of optimal radiotherapy and chemotherapy exist and registry data are used to show shortfalls against these markers. The data are also used to investigate cancer clusters and environmental concerns. Survival data are used to assess service performance and interval cancer data are used in screening accreditation. Registries enable determination of risk of multiple primary cancers. Clinical quality registries are used for clinical quality improvement. Population-based cancer registries and linked administrative data complement clinical registries by providing high-level system-wide data. The USA Commission on Cancer has long used registries for quality assurance and service accreditation. Increasingly population-based registry data in Australia are linked with administrative data on service delivery to assess system performance. Addition of tumour stage and other prognostic indicators is important for these analyses and is facilitated by the roll-out of structured pathology reporting. Data linkage with administrative data, following checks on the quality of these data, enables assessment of patterns of care and other performance indicators for health-system monitoring. Australian cancer registries have evolved and increasingly are contributing to broader information networks for health system management.
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Miladinov-Mikov, Marica. "What are cancer registries." Medical review 57, no. 1-2 (2004): 27–29. http://dx.doi.org/10.2298/mpns0402027m.

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Introduction Population-based cancer registries attempt to collect, process, analyze, store and interpret data on persons with cancer in a certain population (most frequently a geographical area). Hospital-based cancer registries register all cases in a given hospital, usually without knowledge of the background population; the emphasis is to serve the needs of the hospital administration, the hospital cancer program, and, above all, the individual patient. History of Cancer Registries Registration of persons suffering from cancer is a slow process. Around the year 1900, England and Germany demanded improvement of statistical investigation on spread of cancer in population in order to undertake etiological researches. The oldest example of a modern cancer registry is that in Hamburg. Today there are more than 200 population-based cancer registries, but they cover only 5% of the world population, mainly in developed countries of the world. Cancer registry of Vojvodina Cancer registry of Vojvodina was established in 1966; it is a member of International Agency for Research on Cancer (IARC) and it is still the only cancer registry from our country whose data are cited in scientific monographs of IARC. The main purpose of cancer registries is to produce statistics on the occurrence of cancer in a defined populatin and to provide a framework for assessing and controlling the impact of cancer on the community. Cancer registries are essential parts of any rational program of cancer control. Their data can be used in a wide variety of areas of cancer control, ranging from etiological research in epidemiology, through primary and secondary prevention to health-care planning and patient care, so benefiting both the individual and society.
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Guidoum, Mona, Hind Kherfi-Kadi, Ouahiba Benharkat-Boughaba, Aicha Djemaa-Bendjazia, Sihem Keghouche, Behnoush Abedi-Ardekani, Amina Azzouz, Yacine Kadi, Pierre Hainaut, and Zihad Bouslama. "Patterns of Benign and Malignant Lesions of the Thyroid in Two Wilayahs of Northeastern Algeria." Journal of Cancer Epidemiology 2015 (2015): 1–5. http://dx.doi.org/10.1155/2015/849416.

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The aim of this study is to compare histological patterns and to estimate the burden of thyroid cancers in the two Wilayahs (departments) of El-Taref and Guelma in northeast of Algeria (total population 0.9 million), locally reputed as having different rates of endemic thyroid diseases and cancer. A retrospective analysis of central pathology registers and clinical records of patients with thyroid diseases, covering the period 2008–2012, was conducted. A total of 145 cases of thyroid cancers with histological confirmation were registered in the two Wilayahs during the period, with a female to male ratio of 5.9 : 1. Estimates of crude incidence rates suggested that thyroid cancers were twice as frequent in the Wilayah of Guelma compared to El-Taref (p<0.05) with a tendency to occur at a younger age in resident of the Wilayah of El-Taref. Diagnoses of thyroid adenoma were more frequent in the Wilayah of Guelma, whereas the prevalence of other thyroid lesions, including goitre, was similar in the two Wilayahs. This first descriptive study on geographic variations in thyroid cancer in Northern Africa suggests that significant differences may occur in relation with environmental and lifestyle exposures.
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Pusoentsi, Malebogo, Bame P. Shatera, Setlogelo Motlogi, Tuduetso Monagen, Neo Tapela, Tiny Masupe, and Heluf G. Medhin. "Quality of Cancer Registry Data: Botswana Experience, Demonstrating Improvements Over Time." Journal of Global Oncology 2, no. 3_suppl (June 2016): 43s. http://dx.doi.org/10.1200/jgo.2016.004176.

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Abstract 69 Background: One of the challenges to addressing the growing burden of cancer in low- and middle-income countries is insufficient data and limitations in quality of cancer registries. The Botswana National Cancer Registry (BNCR), first established in 1999, is an IARC-endorsed population-based registry covering a population of 2.1 million. Here we assess BNCR's data quality over time. Methods: We conducted a retrospective review of BNCR data that was collected between January 1, 2005 and December 31, 2010. We assessed basis of cancer diagnosis, as well as key data quality indices (completeness, consistency, uniqueness, and accuracy) over two time periods: 2005–2007 and 2008–2010. We assessed cancer incidence and distribution during this time period, and reviewed Botswana Ministry of Health operational documents to identify major health care initiatives that may have had a bearing on cancer registry data quality. Results: In total, 8,938 cancer cases were registered 2005-2010. Kaposi sarcoma was the most commonly diagnosed cancer (n=1766, 19.4%), followed by cervical cancer (n=1252, 13.8%) and then breast cancer (n=801, 8.8%). During 2005-2007, 79% of all cancers were morphologically verified and 6% of were verified by death certificate alone. By 2008-2010, 89% of cancers were morphologically verified while none (0%) were verified by death certificate alone. There was a marked difference for basis of Kaposi sarcoma diagnosis (26% in 2005-2007, 43.8% 2008-2010), which changed from mainly clinical to pathology-based diagnosis. Factors that have contributed to this improvement include targeted initiatives such as clinician training, as well as broader health system developments such as general laboratory diagnostic capacitation that has facilitated use of histopathology services for cancer. Conclusion: BNCR data quality has improved over the years. These improvements enhance utility of cancer registry data for healthcare planning, and highlight the merit of cross-cutting health systems strengthening developments. This assessment, and the initiatives that have contributed to BNCR data improvement may be relevant to cancer registries in similar settings. AUTHORS' DISCLOSURES OF POTENTIAL CONFLICTS OF INTEREST: No COIs from the authors.
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Chaturvedi, Meesha, Krishnan Sathishkumar, Dampilla Daniel Vijaykumar, Sathya Natarajan, Francis Selvaraj Roselind, Rekha Singh, and Goura Kishore Rath. "Cancer Atlas Project–Haryana: Insights for Healthcare Planners." Asian Pacific Journal of Cancer Care 6, no. 1 (March 26, 2021): 19–26. http://dx.doi.org/10.31557/apjcc.2021.6.1.19-26.

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Objective: A comprehensive coordinated effort was undertaken by National Cancer Registry Programme (NCRP) and its coordinating unit in an Indian State – Haryana, to map cancer incidence, to provide regional overview of geographical patterns of Cancer within state of Haryana to serve as basis for informing public and policy makers. Methods: Information on new cases, residents of Haryana state, and diagnosed with cancer during years 2016 -17 was collected from several medical set-ups in 21 districts across Haryana and its neighboring states. Data received from Hospitals registered under NCRP was also included. Age-Adjusted incidence Rates (AARs) were calculated by gender and site for each district in State. All districts were used for comparison of AARs with rates to those from established population based cancer registries. Cumulative risk of developing cancer was calculated.Results: Data from 36736 cases was collated. Comparison of AARs revealed that there are high incidence rates of head and neck cancers in males, whereas cancer breast was leading site in females. Relative proportions of cancers of sites associated with use of tobacco, were found high in some semi-urban districts of state. Project has recognized and substantiated need of setting up of screening programmes and Population Based Cancer Registry in Haryana. The study was done using an electronic data-capture methodology which is remarkably cost-effective and provides a model for health informatics in setting of developing country.Conclusion: Contiguous areas of high incidence of cancer recorded in state have shown higher rates of tobacco related cancers (Head & Neck, Lung) necessitating rigorous control on tobacco usage. Higher incidence of certain cancers associated with reproductive system of both men (prostate) and women (cervix and breast) implicates factors such as lifestyle changes due to urbanization. Overall, the project is a step towards good cancer statistics availability in the country.
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Sandeep, Thekkepat C., Mark W. J. Strachan, Rebecca M. Reynolds, David H. Brewster, Ghislaine Scélo, Eero Pukkala, Kari Hemminki, et al. "Second Primary Cancers in Thyroid Cancer Patients: A Multinational Record Linkage Study." Journal of Clinical Endocrinology & Metabolism 91, no. 5 (May 1, 2006): 1819–25. http://dx.doi.org/10.1210/jc.2005-2009.

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Context: Increasing incidence and improved prognosis of thyroid cancer have led to concern about the development of second primary cancers, especially after radioiodine treatment. Thyroid cancer can also arise as a second primary neoplasm after other cancers. Objective: The objective of the study was to assess the risk of second primary cancer after thyroid cancer and vice versa. Design: This was a multinational record linkage study. Setting: The study was conducted at 13 population-based cancer registries in Europe, Canada, Australia, and Singapore. Patients or Other Participants: A cohort of 39,002 people (356,035 person-yr of follow-up) with primary thyroid cancer were followed up for SPN for up to 25 yr, and 1,990 cases of thyroid cancer were diagnosed after another primary cancer. Main Outcome Measures: To assess any possible excess of second primary neoplasms after thyroid cancer, the observed numbers of neoplasms were compared with expected numbers derived from age-, sex-, and calendar period-specific cancer incidence rates from each of the cancer registries, yielding standardized incidence ratios (SIRs). The SIR of second primary thyroid cancer after various types of cancer was also calculated. Results: During the observation period, there were 2821 second primary cancers (all sites combined) after initial diagnosis of thyroid cancer, SIR of 1.31 (95% confidence interval 1.26–1.36) with significantly elevated risks for many specific cancers. Significantly elevated risks of second primary thyroid cancer were also seen after many types of cancer. Conclusion: Pooled data from 13 cancer registries show a 30% increased risk of second primary cancer after thyroid cancer and increased risks of thyroid cancer after various primary cancers. Although bias (detection, surveillance, misclassification) and chance may contribute to some of these observations, it seems likely that shared risk factors and treatment effects are implicated in many. When following up patients who have been treated for primary thyroid cancer, clinicians should maintain a high index of suspicion for second primary cancers.
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Ellington, Taylor D., S. Jane Henley, Reda J. Wilson, Virginia Senkomago, Manxia Wu, Vicki Benard, and Lisa C. Richardson. "Cancer survival in the United States 2007–2016: Results from the National Program of Cancer Registries." PLOS ONE 18, no. 5 (May 11, 2023): e0284051. http://dx.doi.org/10.1371/journal.pone.0284051.

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Background Cancer survival has improved for the most common cancers. However, less improvement and lower survival has been observed in some groups perhaps due to differential access to cancer care including prevention, screening, diagnosis, and treatment. Methods To further understand contemporary relative cancer survival (one- and five- year), we used survival data from CDC’s National Program of Cancer Registries (NPCR) for cancers diagnosed during 2007–2016. We examined overall relative cancer survival by sex, race and ethnicity, age, and county-level metropolitan and non-metropolitan status. Relative cancer survival by metropolitan and non-metropolitan status was further examined by sex, race and ethnicity, age, and cancer type. Results Among persons with cancer diagnosed during 2007–2016 the overall one-year and five-year relative survival was 80.6% and 67.4%, respectively. One-year relative survival for persons living in metropolitan counties was 81.1% and 77.8% among persons living in non-metropolitan counties. We found that persons who lived in non-metropolitan counties had lower survival than those who lived in metropolitan counties, and this difference persisted across sex, race and ethnicity, age, and most cancer types. Conclusion Further examination of the differences in cancer survival by cancer type or other characteristics might be helpful for identifying potential interventions, such as programs that target screening and early detection or strategies to improve access to high quality cancer treatment and follow-up care, that could improve long-term outcomes. Impact This analysis provided a high-level overview of contemporary cancer survival in the United States.
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46

Bernatsky, Sasha, Ann E. Clarke, Omid Zahedi Niaki, Jeremy Labrecque, Laura E. Schanberg, Earl D. Silverman, Kristen Hayward, et al. "Malignancy in Pediatric-onset Systemic Lupus Erythematosus." Journal of Rheumatology 44, no. 10 (August 1, 2017): 1484–86. http://dx.doi.org/10.3899/jrheum.170179.

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Objective.To determine cancer incidence in a large pediatric-onset systemic lupus erythematosus (SLE) population.Methods.Data were examined from 12 pediatric SLE registries in North America. Patients were linked to their regional cancer registries to detect cancers observed after cohort entry, defined as date first seen in the clinic. The expected number of malignancies was obtained by multiplying the person-years in the cohort (defined from cohort entry to end of followup) by the geographically matched age-, sex-, and calendar year–specific cancer rates. The standardized incidence ratio (SIR; ratio of cancers observed to expected) was generated, with 95% CI.Results.A total of 1168 patients were identified from the registries. The mean age at cohort entry was 13 years (SD 3.3), and 83.7% of the subjects were female. The mean duration of followup was 7.6 years, resulting in a total observation period of 8839 years spanning the calendar period 1974–2009. During followup, fourteen invasive cancers occurred (1.6 cancers per 1000 person-yrs, SIR 4.13, 95% CI 2.26–6.93). Three of these were hematologic (all lymphomas), resulting in an SIR for hematologic cancers of 4.68 (95% CI 0.96–13.67). SIR were increased for both male and female patients, and across age groups.Conclusion.Although cancer remains a relatively rare outcome in pediatric-onset SLE, our data do suggest an increase in cancer for patients followed an average of 7.6 years. About one-fifth of the cancers were hematologic. Longer followup, and study of drug effects and disease activity, is warranted.
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47

Baldé, Salif, O. Ba, Mamadou Diop, G. Diouf, T. Fall, D. Dia, and M. Mbengue. "Establishment of a Cancer Registry in Senegal: Preliminary results." African Journal of Oncology 1, no. 1 (January 1, 2021): 15–16. http://dx.doi.org/10.54266/ajo.1.1.15.15.

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INTRODUCTION: Senegal with the support of WHO has undertaken the establishment of a National Cancer Registry. The objective of this work was to assess the preliminary results. MATERIALS AND METHODS: We conducted a non-exhaustive preliminary study over a period of three months from January 1, 2013 to March 31, 2013 at four hospitals in Dakar. RESULTS: Two hundred and eighty-nine cases were identified. These were 127 men (44%) and 126 women (56%) with a sex-ratio of 0.8. The ages ranged from 20 to 90 with an average of 50. The main mode of diagnosis was essentially histological with 76% of cases (n=219). The most frequent locations were ENT (25%), hepatic (7%) and bronchopulmonary (4.5%). In men, liver cancer was the most common location and in women cervical cancer with 16%. Squamous cell carcinoma was the most frequent histological type with 68% of cases followed by adenocarcinoma with 22% of cases. Thirty-eight percent of the patients were classified as stage III and IV. A quarter of our patients have received palliative treatment. In contrast, 15 (15%) received chemotherapy and 4% radiotherapy. Data collection was satisfactory. CONCLUSION: Cancer is a reality in Senegal but it remains underdiagnosed. The media allow the cancer registry to be made effective across the country.
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48

Korir, A., R. Gakunga, N. Okerosi, A. Karagu, N. Buziba, G. Chesumbai, S. Gathere, V. Manduku, R. Rochford, and D. Parkin. "Development of a National Cancer Registry in a Low Resourced Country: The Case of Kenya National Cancer Registry Programme." Journal of Global Oncology 4, Supplement 2 (October 1, 2018): 216s. http://dx.doi.org/10.1200/jgo.18.87300.

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Background: Population-based cancer registration represents the gold standard for the provision of information on cancer incidence in a defined population (Bray F, et. al, IARC Technical Report No. 43). In Kenya, the incidence and prevalence of cancer has not been well documented. The existing population-based cancer registries (PBCRs) cover less than 10% of Kenya's population. Kenya is made up of 47 administrative counties and has a population of over 45 million people. Aim: To establish a National Cancer Registry Program that will compile national data on incidence, mortality and trends of cancer in Kenya over time. Methods: Three functional PBCRs have been in existence covering 3 counties: Nairobi, Eldoret and Kisumu. Needs assessment was conducted in the 3 registries. Additional support and resources were provided. New registries were set up in different geographical regions of Kenya. A centralized office to host the national registry was established and equipped at the Centre for Clinical Research, Kenya Medical Research Institute. Sensitization and awareness activities targeting the leaders in the selected counties were undertaken. Similarly trainings and technical support of the regional registries were conducted. Data were collected on to case registration forms, coded using the International Classification of Diseases for Oncology (ICD-O); data entry, validation and analysis done using IARC software CanReg5. Results: Variations in cancer occurrence in the different counties were noted. However the leading cancers were somewhat similar in the 8 counties with prostate and esophageal cancers being the leading in men while breast and cervical cancer being top among women. These variations could provide understanding on causation of certain types of cancers. Data highlights the need to develop and expand intervention programs like HPV vaccination, screenings, early detection and early treatment. Governments' allocation of resources to cancer registries and surveillance programs is important as well as building partnerships. Conclusion: In countries with limited resources it is expensive to develop a national cancer registry covering the entire country. Our program demonstrates that a national cancer registry program can be established by setting up regional population-based cancer registries that covers a reasonable population of the entire country and aggregating the data in a centralized system. Population-based cancer registries are critical in generating data on burden of cancer in specified populations. These data should be used to inform effective cancer control programs and research.
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Boice, J. D., N. E. Day, A. Andersen, L. A. Brinton, R. Brown, N. W. Choi, E. A. Clarke, et al. "Second Cancers Following Radiation Treatment for Cervical Cancer. An International Collaboration Among Cancer Registries." Journal of Urology 134, no. 6 (December 1985): 1307. http://dx.doi.org/10.1016/s0022-5347(17)47726-3.

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50

Kizildag Yirgin, Inci, Yilmaz Onat Koyluoglu, Mustafa Ege Seker, Sibel Ozkan Gurdal, Ayse Nilufer Ozaydin, Beyza Ozcinar, Neslihan Cabioğlu, Vahit Ozmen, and Erkin Aribal. "Diagnostic Performance of AI for Cancers Registered in A Mammography Screening Program: A Retrospective Analysis." Technology in Cancer Research & Treatment 21 (January 2022): 153303382210751. http://dx.doi.org/10.1177/15330338221075172.

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Purpose: To evaluate the performance of an artificial intelligence (AI) algorithm in a simulated screening setting and its effectiveness in detecting missed and interval cancers. Methods: Digital mammograms were collected from Bahcesehir Mammographic Screening Program which is the first organized, population-based, 10-year (2009-2019) screening program in Turkey. In total, 211 mammograms were extracted from the archive of the screening program in this retrospective study. One hundred ten of them were diagnosed as breast cancer (74 screen-detected, 27 interval, 9 missed), 101 of them were negative mammograms with a follow-up for at least 24 months. Cancer detection rates of radiologists in the screening program were compared with an AI system. Three different mammography assessment methods were used: (1) 2 radiologists’ assessment at screening center, (2) AI assessment based on the established risk score threshold, (3) a hypothetical radiologist and AI team-up in which AI was considered to be the third reader. Results: Area under curve was 0.853 (95% CI = 0.801-0.905) and the cut-off value for risk score was 34.5% with a sensitivity of 72.8% and a specificity of 88.3% for AI cancer detection in ROC analysis. Cancer detection rates were 67.3% for radiologists, 72.7% for AI, and 83.6% for radiologist and AI team-up. AI detected 72.7% of all cancers on its own, of which 77.5% were screen-detected, 15% were interval cancers, and 7.5% were missed cancers. Conclusion: AI may potentially enhance the capacity of breast cancer screening programs by increasing cancer detection rates and decreasing false-negative evaluations.
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