Letteratura scientifica selezionata sul tema "HIV-positive persons Australia"

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Articoli di riviste sul tema "HIV-positive persons Australia"

1

Heymer, Kelly-Jean, Matthias Wentzlaff-Eggebert, Elissa Mortimer e David P. Wilson. "An economic case for providing free access to antiretroviral therapy for HIV-positive people in South Australia". Sexual Health 9, n. 3 (2012): 220. http://dx.doi.org/10.1071/sh10148.

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Abstract (sommario):
Background As financial constraints can be a barrier to accessing HIV antiretroviral therapy (ART), we argue for the removal of copayment requirements from HIV medications in South Australia. Methods: Using a simple mathematical model informed by available behavioural and biological data and reflecting the HIV epidemiology in South Australia, we calculated the expected number of new HIV transmissions caused by persons who are not currently on ART compared with transmissions for people on ART. The extra financial investment required to cover the copayments to prevent an HIV infection was compared with the treatment costs saved due to averting HIV infections. Results: It was estimated that one HIV infection is prevented per year for every 31.4 persons (median, 24.0–42.7 interquartile range (IQR)) who receive treatment. By considering the incremental change in costs and outcomes of a change in program from the current status quo, it would cost the health sector $17 860 per infection averted (median, $13 651–24 287 IQR) if ART is provided as a three-dose, three-drug combination without requirements for user-pay copayments. Conclusions: The costs of removing copayment fees for ART are less than the costs of treating extra HIV infections that would result under current conditions. Removing the copayment requirement for HIV medication would be cost-effective from a governmental perspective.
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2

Puhr, Rainer, Stephen T. Wright, Jennifer F. Hoy, David J. Templeton, Nicolas Durier, Gail V. Matthews, Darren Russell e Matthew G. Law. "Retrospective study of hepatitis C outcomes and treatment in HIV co-infected persons from the Australian HIV Observational Database". Sexual Health 14, n. 4 (2017): 345. http://dx.doi.org/10.1071/sh16151.

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Background: The widespread availability of direct-acting antivirals (DAAs) is expected to drastically improve the treatment uptake and cure rate of hepatitis C virus (HCV). In this paper, rates of and factors associated with HCV treatment uptake and cure in the HIV co-infected population in Australia were assessed before access to DAAs. Methods: The medical records of patients in the Australian HIV Observational Database who were reported to be HCV antibody positive from 1999 to 2014 were reviewed for HCV treatment data. Patients with detectable HCV RNA were included in this analysis. Logistic regression models were applied to identify factors associated with treatment uptake and HCV sustained virological response (SVR) 24 weeks’ post treatment. Results: The median follow-up time of those with chronic HCV/HIV co-infection was 103 months (interquartile range 51–166 months). Of 179 HCV viraemic patients, 79 (44.1%) began treatment. In the adjusted model, a higher METAVIR score was the only significant factor associated with treatment uptake (odds ratio (OR) 8.87, 95% confidence interval (CI) 2.00–39.3, P = 0.004). SVR was achieved in 37 (50%) of 74 treated patients. HCV genotypes 2/3 compared with 1/4 remained the only significant factor for SVR in an adjusted multivariable setting (OR 5.44, 95% CI 1.53–19.4, P = 0.009). Conclusions: HCV treatment uptake and SVR have been relatively low in the era of interferon-containing regimens, in Australian HIV/HCV coinfected patients. With new and better tolerated DAAs, treatment of HCV is likely to become more accessible, and identification and treatment of HCV in co-infected patients should become a priority.
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3

Donovan, Basil, Robert J. Finlayson, Kieran Mutimer, Ross Price, Mark Robertson, Megan Nelson, Margaret Slade, Ian Reece e Joanne dalle Nogare. "HIV Infection in Sexually Transmissible Disease Practice in Sydney: The Effects of Legislation, Public Education and Changing Clinical Spectrum". International Journal of STD & AIDS 1, n. 1 (gennaio 1990): 21–27. http://dx.doi.org/10.1177/095646249000100106.

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Abstract (sommario):
The experience with human immunodeficiency virus (HIV) infection of a private inner-city sexually transmissible diseases (STD) clinic in Sydney was quantified. Between February 1984 and March 1988, 2073 of the Clinic's patients were tested for antibodies to HIV on 5095 occasions. Of those tested, 538 (26%) were positive for antibodies to HIV: 532 (98.9%) of the seropositives had practised male homosexual intercourse. This is the highest reported seroprevalence of HIV for any primary care service in Australia. Those individuals seropositive because of other risk behaviours were detected by voluntary contact tracing rather than by screening. Female prostitution was not found to be a risk factor for HIV. In general, rates of first HIV antibody tests were adversely affected by threatening legislation, and temporarily stimulated (among lower-risk persons) by a national television campaign. These data suggest that much of the counselling, detection and management of HIV infection in Australia is occurring in private practice, and that STD services (private and public) are at the forefront of the HIV epidemic. This has implications for disease surveillance and control, health services planning and medical education.
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4

Hall, T. "HIV pre-exposure prophylaxis (PrEP) and treatment as prevention (TasP): What mental health providers should know". European Psychiatry 33, S1 (marzo 2016): S70—S71. http://dx.doi.org/10.1016/j.eurpsy.2016.01.983.

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Abstract (sommario):
Pharmacologic methods of treating and preventing HIV have advanced tremendously in recent years. Understandings of HIV risk and recommendations for risk-reduction strategies have also changed substantially. A majority of new cases of HIV in many developed countries are now acquired through sex with long-term partners who are unaware of their HIV-positive status, rather than from casual or anonymous sexual encounters. Persons with bipolar disorder and substance use disorders are at particularly high risk. Mental health providers who work with LGBT persons and other populations at higher risk for HIV need to understand strategies their patients are using for HIV risk reduction, and to refer appropriate patients for consideration for pre-exposure prophylaxis (PrEP). PrEP is the daily use of an antiretroviral (ARV) medication for prevention of HIV infection in higher-risk individuals. The United States approved tenofovir + emtracitabine for PrEP in 2012; this is under review in several European countries, Canada, and Australia, and is already prescribed off-label in many. Additionally, studies have shown that treatment with ARV medications to an “undetectable viral load” greatly reduces the risk of further transmission by persons already infected with HIV, called “treatment as prevention” (TasP). As of September 2015, WHO recommends early ARV treatment for all persons with HIV, and consideration of PrEP for men who have sex with men. This paper reviews findings from the PrEP studies (especially iPrEx, iPrEx Ole, IPERGAY, and PROUD) and TasP, and looks at their impact on LGBT and HIV+ communities, with relevance for mental health providers.Disclosure of interestThe author has not supplied his declaration of competing interest.
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5

Walia, Anuj, Xuan Wang, Martha Nicholson, Lucy Sun, Jessica R. Wong, Jennifer Eriksson, Smita Kothari e Edith Morais. "Epidemiological trends of HPV-related anal cancers amongst males globally: A systematic literature review." Journal of Clinical Oncology 37, n. 4_suppl (1 febbraio 2019): 492. http://dx.doi.org/10.1200/jco.2019.37.4_suppl.492.

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Abstract (sommario):
492 Background: Anal cancer is associated with human papillomavirus (HPV), a sexually transmitted infection, which can be prevented by the HPV vaccination. Few countries do recommend vaccination for the male population, but all males are at risk of contracting HPV. This study aimed to identify the latest evidence on the incidence of anal cancer and pre-cancer related to HPV in males globally and to analyze the epidemiological trends. Methods: A systematic literature search was performed using Medline and EMBASE. Studies containing original anal cancer incidence data in males published between January 1, 2008 and March 23, 2018 in English were included. Results: The global incidence of anal cancers and pre-cancers among the general male population was identified in 25 studies with observations ranging between 1968 and 2014. Incidence over time was reported in Australia and Europe. In an Australian national study, anal cancer incidence increased from 0.77 to 1.3 per 100,000 persons from 1982-2005, and in the UK from 0.79 to 1.06 per 100,000 persons from 1962-2002. In Denmark, the anal cancer range increased from 0.20-0.41 to 0.69-1.3 per 100,000 person-years (PYs) from pre-2000 to post-2000, and in France from 0.2 to 0.5 per 100,000 PYs from 1982-2012. In two national US studies, the mean incidence of pre-cancers was 1.5 in the period 1997-2009, and 0.41 from 1978-2007 per 100,000 PYs. The burden of anal cancers and pre-cancers increased the most among high-risk males reported in US studies. For HIV-positive males, mean incidence of cancer increased from 10.5 during 1980-1989 to 42.3 in 1996-2004 per 100,000 PYs, and for HIV-positive MSM, incidence increased from 47 to 270 per 100,000 PYs between 1984 and 2013. The mean pre-cancer incidence among HIV-positive males increased from 1.7 during 1980-1989 to 29.5 in 1996-2004 per 100,000 PYs. Conclusions: This systematic literature review demonstrates the increase in anal cancer and pre-cancer incidences over time in men, especially in high-risk male populations. The burden of anal cancers and pre-cancers increase over time in all male populations highlights the unmet medical need and the importance of preventative interventions such as HPV gender-neutral vaccinations.
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6

Teresa Dawson, Maria, Paul Grech, Brendan Hyland, Fiona Judd, John Lloyd, Anne M. Mijch, Jennifer Hoy e Alan C Street. "A Qualitative Approach to the Mental Health Care Needs of People Living with HIV/AIDS in Victoria". Australian Journal of Primary Health 8, n. 3 (2002): 30. http://dx.doi.org/10.1071/py02041.

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This article reports on the findings of the qualitative stage of a larger project on the mental care needs of people with HIV/AIDS and mental illness (Tender T1176 Department of Human Services, Mental Health Branch, Victoria - Research on the Mental Health Care Needs of People with HIV/AIDS and Mental Illness). The purpose of the larger research was to evaluate the needs and treatment requirements of persons with HIV/AIDS, who also suffer from mental health problems, with a view to developing proposals for improving existing service delivery in Victoria, Australia. The qualitative stage was designed to complement and elucidate data obtained through the quantitative stages of the project. Thirty in-depth open-ended interviews were carried out with service providers including HIV physicians, general practitioners, psychiatrists, clinical and managerial staff of Area Mental Health Services, Contact Tracers and forensic mental health services staff, as well as representatives of community groups such as People Living with HIV/AIDS and Positive Women and carers. The interviews explored the perspective of both service providers and users of such services with respect to needs for psychiatric care and service delivery, ease of access or barriers to mental health services, and the perceived strengths and weaknesses in current service provision. This paper presents the main findings and recommendations submitted to the funding body.
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7

Di Ciaccio, Pietro R., Fengyi Jin, Matthew Law, Marina Van Leeuwen, Andrew Grulich, Janaki Amin, Claire Vajdic, Skye McGregor e Mark N. Polizzotto. "The Role of Lymphomas in Subsequent Primary Cancers in People with HIV/AIDS: An Australian National Population-Based Data Linkage Study". Blood 136, Supplement 1 (5 novembre 2020): 32. http://dx.doi.org/10.1182/blood-2020-139012.

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Background Despite combination antiretroviral therapy (cART), the incidence of lymphomas remains elevated in persons with HIV/AIDS (PWHA). While the risk of subsequent primary cancers (SPCs) in the general population is well understood, these data are lacking for PWHA. Underlying aetiologic factors in PWHA, including oncogenic viruses and immunodeficiency, may have a differential impact on SPCs. We conducted a nationwide data linkage study in order to examine the role of lymphoma in SPCs in PWHA in two ways. First, we determined the incidence of and risk factors for Hodgkin lymphoma (HL) or non-Hodgkin lymphoma (NHL) (including chronic lymphocytic leukaemia) in PWHA previously diagnosed with an initial cancer of any type. Second, we assessed the incidence and features of SPCs of any type in PWHA after a primary HL or NHL. Methods Since 1982 Australia has had compulsory disease notification of all new HIV infections and all invasive cancers. We conducted a probabilistic data linkage study between the Australian National HIV Registry, the Australian Cancer Database and National Death Index to identify PWHA diagnosed with an initial cancer, followed by at least one SPC between 1982 and 2012. Follow up commenced from 90 days post the date of first cancer diagnosis at or following HIV diagnosis, and ended on 31 December 2012 or death, whichever came earlier. A SPC was defined as a cancer of diverse site and histology to the first cancer and diagnosed more than 90 days later (in order to mitigate ascertainment bias). The incidence of SPC was compared using Poisson regression. Risk factors considered included: age, sex, HIV exposure modality (such as male-to-male, intravenous drug, etc.) and CD4+ cell count at HIV diagnosis (<50, 50-199, 200-499, >500 cells/µL). Incidence was also compared across various eras corresponding to HIV treatment advances: 1982-1995 (pre-cART); 1996-1999 (early-cART); 2000-2004 (availability of protease inhibitors for HIV); and, 2005-2012 (availability of fusion inhibitors for HIV and rituximab for CD20-positive lymphomas). Results Out of 28,696 PWHA, 3,548 were identified with a first cancer. Among them, 229 SPCs were identified over 27,398 person-years (PY) of follow-up. The crude incidence of SPCs was 8.36 per 1000 PY (95% CI 7.34-9.51). Of 229 SPCs, 88 were lymphomas, comprising 42 diffuse large B cell, 4 Burkitt, 3 T cell, 2 primary effusion, 3 low grade lymphomas and 5 HLs; 29 NHLs were not sub-classified in the Database. The majority of first cancers in the group with SPCs were Kaposi sarcoma (KS) (55%). The incidence of lymphoma as an SPC decreased from 8.10 to 0.79 per 1000 PY from 1982-1995 to 2005-2012 (p=0.003). Median time from first cancer diagnosis to the diagnosis of a lymphoma SPC was 2.0 years (interquartile range (IQR): 0.8-4.0). Median age at diagnosis of a lymphoma SPC was 39 years (IQR: 34-49). The risk of a lymphoma SPC decreased with older age, from 10.68 per 1000 PY in those under 35 to 1.28 per 1000 PY in those above 55 (p=0.003). CD4 count at HIV diagnosis and HIV exposure modality were not associated with the risk of a lymphoma SPC. The incidence of a SPC after lymphoma as a first cancer (n=39) was 5.60 per 1000 PY, versus 9.30 per 1000 PY when the first cancer was not lymphoma (n=190, p=0.004). KS was the most common SPC after an initial lymphoma (49% of cases). Only two myeloid SPCs occurred. Median time to diagnosis of SPC after an initial lymphoma was 2.6 years (IQR: 1.1-6.7). Risk of a SPC after a first lymphoma increased significantly from 4.12 per 1000 person-years in those diagnosed with HIV in the 1982-1995 pre-cART era, to 33.15 per 1000 person-years in patients diagnosed with HIV between 2009-2012 (p=0.005). Conclusion The incidence and spectrum of SPC in PWHA is increasingly important as overall and cancer-specific survival of these patients continues to improve. The incidence of lymphomas as SPC in PWHA has decreased over time, which may be a function of improved HIV treatment and reduced susceptibility to immunosuppression-related lymphoma. However, PWHA diagnosed with lymphoma as a first cancer are experiencing increasing incidence of SPCs, occurring after relatively short intervals. Longer survival is likely contributing to this effect. Importantly, therapy-related cancers do not appear prominent, suggesting HIV-specific factors may play a role. These findings emphasise the importance of SPC surveillance tailored to this special population. Disclosures Di Ciaccio: Janssen: Honoraria.
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8

Boettiger, David C., Luisa Salazar-Vizcaya, Gregory J. Dore, Richard T. Gray, Matthew G. Law, Denton Callander, Toby Lea, Andri Rauch e Gail V. Matthews. "Can Australia Reach the World Health Organization Hepatitis C Elimination Goal by 2025 Among Human Immunodeficiency Virus–positive Gay and Bisexual Men?" Clinical Infectious Diseases 70, n. 1 (28 febbraio 2019): 106–13. http://dx.doi.org/10.1093/cid/ciz164.

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Abstract Background Human immunodeficiency virus (HIV)–positive gay and bisexual men (GBM) in Australia are well engaged in care. The World Health Organization’s (WHO) hepatitis C virus (HCV) elimination target of an 80% reduction in incidence by 2030 may be reachable ahead of time in this population. Methods We predicted the effect of treatment and behavioral changes on HCV incidence among HIV-positive GBM up to 2025 using a HCV transmission model parameterized with Australian data. We assessed the impact of changes in behavior that facilitate HCV transmission in the context of different rates of direct-acting antiviral (DAA) use. Results HCV incidence in our model increased from 0.7 per 100 person-years in 2000 to 2.5 per 100 person-years in 2016 and had the same trajectory as previously reported clinical data. If the proportion of eligible (HCV RNA positive) patients using DAAs stays at 65% per year between 2016 and 2025, with high-risk sexual behavior and injecting drug use remaining at current levels, HCV incidence would drop to 0.4 per 100 person-years (85% decline from 2016). In the same treatment scenario but with substantial increases in risk behavior, HCV incidence would drop to 0.6 per 100 person-years (76% decline). If the proportion of eligible patients using DAAs dropped from 65% per year in 2016 to 20% per year in 2025 and risk behavior did not change, HCV incidence would drop to 0.7 per 100 person-years (70% reduction). Conclusions Reaching the WHO HCV elimination target by 2025 among HIV-positive GBM in Australia is achievable.
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9

Mulhall, Brian P., Stephen Wright, Debbie Allen, Katherine Brown, Bridget Dickson, Miriam Grotowski, Eva Jackson et al. "High rates of sexually transmissible infections in HIV-positive patients in the Australian HIV Observational Database: a prospective cohort study". Sexual Health 11, n. 4 (2014): 291. http://dx.doi.org/10.1071/sh13074.

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Background In HIV-positive people, sexually transmissible infections (STIs) probably increase the infectiousness of HIV. Methods: In 2010, we established a cohort of individuals (n = 554) from clinics in the Australian HIV Observational Database (AHOD). We calculated retrospective rates for four STIs for 2005–10 and prospective incidence rates for 2010–11. Results: At baseline (2010), patient characteristics were similar to the rest of AHOD. Overall incidence was 12.5 per 100 person-years. Chlamydial infections increased from 3.4 per 100 person-years (95% confidence interval (CI): 1.9–5.7) in 2005 to 6.7 per 100 person-years (95% CI: 4.5–9.5) in 2011, peaking in 2010 (8.1 per 100 person-years; 95% CI: 5.6–11.2). Cases were distributed among rectal (61.9%), urethral (34%) and pharyngeal (6.3%) sites. Gonococcal infections increased, peaking in 2010 (4.7 per 100 person-years; 95% CI: 5.6–11.2; Ptrend = 0.0099), distributed among rectal (63.9%), urethral (27.9%) and pharyngeal (14.8%) sites. Syphilis showed several peaks, the largest in 2008 (5.3 per 100 person-years; 95% CI: 3.3–8.0); the overall trend was not significant (P = 0.113). Genital warts declined from 7.5 per 100 person-years (95% CI: 4.8–11.3) in 2005 to 2.4 per 100 person-years (95% CI: 1.1–4.5) in 2011 (Ptrend = 0.0016). Conclusions: For chlamydial and gonococcal infections, incidence was higher than previous Australian estimates among HIV-infected men who have sex with men, increasing during 2005–2011. Rectal infections outnumbered infections at other sites. Syphilis incidence remained high but did not increase; that of genital warts was lower and decreased.
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Jin, Fengyi, Garrett P. Prestage, Iryna Zablotska, Patrick Rawstorne, John Imrie, Susan C. Kippax, Basil Donovan, David J. Templeton, John M. Kaldor e Andrew E. Grulich. "High incidence of syphilis in HIV-positive homosexual men: data from two community-based cohort studies". Sexual Health 6, n. 4 (2009): 281. http://dx.doi.org/10.1071/sh09060.

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Background: Syphilis has re-emerged and become established in gay communities in most developed countries since the late 1990s. HIV infected men have been disproportionately affected by this endemic, but it is unclear whether this is due to behavioural or biological reasons. We report incidence and risk factors for syphilis in two community-based cohorts of HIV-negative and HIV-positive homosexual men in Sydney, Australia. Methods: Participants were recruited using similar community-based strategies in both cohorts and underwent annual face-to-face interviews. Syphilis screening was offered to all consenting participants at annual visits. Results: In the HIV-negative cohort, 21 men seroconverted to syphilis and one man had a syphilis re-infection during 2001–07, an incidence of 0.49 per 100 person-years (95% CI: 0.31–0.74). In the HIV-positive cohort during 2005–07, eight men seroconverted and one man had a syphilis re-infection, giving an incidence of 3.62 per 100 person-years (95% CI: 1.67–6.48). All nine reported a recent CD4 count of more than 350 cells µL–1. Syphilis incidence was significantly higher in the HIV-positive cohort after adjustment for age (hazard ratio (HR) = 9.20, 95% CI: 3.63–23.31). Unprotected anal intercourse (UAI) with HIV-positive partners was significantly associated with incident syphilis in both cohorts (HR = 4.45, 95% CI: 1.37–14.45 in HIV-negative; HR = 8.67, 95% CI: 1.03–72.76 in HIV-positive). Conclusion: Syphilis incidence was almost 10-fold higher in HIV-positive than in HIV-negative homosexual men, and it was not related to a CD4 count below 350 µL–1. UAI with HIV positive partners was of particular importance in the transmission of syphilis.
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Tesi sul tema "HIV-positive persons Australia"

1

Helderman, Carolena. "HIV/AIDS positive stories : research report". 2002. http://www.hivaids.webcentral.com.au.

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"As a partial requirement for Master of Arts (Animation & Interactive Media) by Research Project 25th March 2002, studied at Centre for Animation and Interactive Media, School of Creative Media, Faculty of Art, Design and Communication" Typescript (photocopy) Bibliography: leaves 66-67. Internet access at: http://www.hivaids.webcentral.com.au/
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