Participation, characteristics and retention rates of HIV-positive immigrants in the Swiss HIV Cohort Study.
Details
Serval ID
serval:BIB_751671E7CA40
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Participation, characteristics and retention rates of HIV-positive immigrants in the Swiss HIV Cohort Study.
Journal
HIV medicine
Working group(s)
Swiss HIV Cohort Study Group
Contributor(s)
Barth J., Battegay M., Bernasconi E., Böni J., Bucher H.C., Bürgisser P., Burton-Jeangros C., Calmy A., Cavassini M., M E., Elzi L., Fehr J., Flepp M., Francioli P., Furrer H., Fux C.A., Gorgievski M., Günthard H., Hasse B., Hirsch H.H., Hirschel B., Hösli I., Kahlert C., Kaiser L., Keiser O., Kind C., Klimkait T., Kovari H., Ledergerber B., Martinetti G., Martinez de Tejada B., Metzner K., Müller N., Nadal D., Pantaleo G., Rauch A., Regenass S., Rickenback M., Rudin C., Schmid P., Schultze D., Schöni-Affolter F., Schüpbach J., Speck R., Taffé P., Tarr P., Telenti A., Trkola A., Vernazza P., von Wyl V., Weber R., Yerly S.
ISSN
1468-1293 (Electronic)
ISSN-L
1464-2662
Publication state
Published
Issued date
02/2012
Peer-reviewed
Oui
Volume
13
Number
2
Pages
118-126
Language
english
Notes
Publication types: Journal Article ; Multicenter Study ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Publication Status: ppublish
Abstract
Data from observational cohorts may be influenced by population structure and loss to follow-up (LTFU). Quality of care may be associated with participation in cohort networks. We aimed to study the participation, characteristics and retention rates of immigrants in the Swiss HIV Cohort Study (SHCS).
We compared enrolment over time (1996-1999, 2000-2003 and 2004-2008) and LTFU between individuals from different geographical regions. In 2008, we performed a cross-sectional survey to investigate the proportion of individuals not participating in the SHCS but who were in care at SHCS institutions. Predictors for LTFU were analysed using Cox proportional hazard models, and those for nonparticipation using logistic regression.
A total of 7840 individuals entered the SHCS during the observation period. The proportion of immigrants increased over time, especially the proportion of women from sub-Saharan Africa, which increased from 21 to 48% during the observation period. Overall LTFU was 3.76 [95% confidence interval (CI) 3.58-3.95]/100, with the highest hazard ratio in men from sub-Saharan Africa (2.82/100 patient-years; 95% CI 2.30-3.46/100), compared with men from northwestern countries. Other predictors for LTFU were age <30 years, lower education, injecting drug use, and higher baseline CD4 cell counts. Participants taking antiretroviral therapy had reduced LTFU. The survey showed that 84% of HIV-infected patients in care at SHCS institutions were enrolled in the cohort. Nonparticipation was more likely among men from non-European regions (odds ratio 2.73; 95% CI 2.29-3.24), women from sub-Saharan Africa (odds ratio 3.01; 95% CI 2.40-3.77) and women from Latin America/Caribbean (odds ratio 2.10; 95% CI 1.30-3.39).
Numbers of HIV-infected immigrants are increasing but they are underrepresented in the SHCS, and immigrants are more likely to be lost to follow-up.
We compared enrolment over time (1996-1999, 2000-2003 and 2004-2008) and LTFU between individuals from different geographical regions. In 2008, we performed a cross-sectional survey to investigate the proportion of individuals not participating in the SHCS but who were in care at SHCS institutions. Predictors for LTFU were analysed using Cox proportional hazard models, and those for nonparticipation using logistic regression.
A total of 7840 individuals entered the SHCS during the observation period. The proportion of immigrants increased over time, especially the proportion of women from sub-Saharan Africa, which increased from 21 to 48% during the observation period. Overall LTFU was 3.76 [95% confidence interval (CI) 3.58-3.95]/100, with the highest hazard ratio in men from sub-Saharan Africa (2.82/100 patient-years; 95% CI 2.30-3.46/100), compared with men from northwestern countries. Other predictors for LTFU were age <30 years, lower education, injecting drug use, and higher baseline CD4 cell counts. Participants taking antiretroviral therapy had reduced LTFU. The survey showed that 84% of HIV-infected patients in care at SHCS institutions were enrolled in the cohort. Nonparticipation was more likely among men from non-European regions (odds ratio 2.73; 95% CI 2.29-3.24), women from sub-Saharan Africa (odds ratio 3.01; 95% CI 2.40-3.77) and women from Latin America/Caribbean (odds ratio 2.10; 95% CI 1.30-3.39).
Numbers of HIV-infected immigrants are increasing but they are underrepresented in the SHCS, and immigrants are more likely to be lost to follow-up.
Keywords
Adult, Africa South of the Sahara/ethnology, Asia, Southeastern/ethnology, CD4 Lymphocyte Count/statistics & numerical data, Caribbean Region/ethnology, Cohort Studies, Cross-Sectional Studies, Emigration and Immigration/statistics & numerical data, Europe/ethnology, Female, Follow-Up Studies, HIV Infections/epidemiology, HIV Infections/ethnology, HIV-1, Health Services Accessibility, Humans, Latin America/ethnology, Lost to Follow-Up, Male, Switzerland/epidemiology
Pubmed
Web of science
Create date
29/01/2013 16:32
Last modification date
17/02/2024 8:13
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