Trends in age at first sex in Uganda: evidence from Demographic and Health Survey data and longitudinal cohorts in Masaka and Rakai
Objectives:To derive the best possible estimates of trends in age at first sex (AFS) among successive cohorts of Ugandan men and women based on all the data available from the Demographic and Health Surveys (DHS) and cohort studies in Masaka and Rakai districts.Methods:The datasets from the DHS, Mas...
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Published in | Sexually transmitted infections Vol. 85; no. Suppl 1; pp. i12 - i19 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
England
BMJ Publishing Group Ltd
01.04.2009
BMJ Publishing Group LTD BMJ Publishing Group |
Subjects | |
Online Access | Get full text |
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Summary: | Objectives:To derive the best possible estimates of trends in age at first sex (AFS) among successive cohorts of Ugandan men and women based on all the data available from the Demographic and Health Surveys (DHS) and cohort studies in Masaka and Rakai districts.Methods:The datasets from the DHS, Masaka cohort and Rakai cohort were analysed separately. Survival analysis methods were used to estimate median AFS for men and women born in the 1950s–1980s and to compute hazard ratios for first sex, comparing later cohorts with earlier cohorts.Results:The DHS and Masaka data showed an increase in AFS in women in the more recent birth cohorts compared with those born before 1970, but this was less apparent in the Rakai data. Successive male cohorts in Masaka appeared first to have an increased AFS which subsequently decreased, a trend that was also apparent (but not significant) in the DHS data. Younger men in Rakai had an earlier AFS than those born before 1980.Conclusions:Women in Uganda who were born after 1970 have, on average, had sex at a later age than those born earlier. For men, AFS has not changed consistently over the period in question. Differences between Masaka and Rakai may reflect socioeconomic differences. Most of the change in AFS occurred too late to have contributed to the initial decline in the incidence of HIV. |
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Bibliography: | ArticleID:st34009 istex:DD07CE9EBF05D374ADD3DE6A3DF9FA5A01FA21AD ark:/67375/NVC-3TNG6338-N PMID:19307335 Contributors: ES planned the analyses and analysed the DHS data. JT oversaw the analyses. JT, IK and DM analysed the Masaka data. TL and JBB analysed the Rakai data. All authors reviewed the results and wrote the paper. local:sextrans;85/Suppl_1/i12 href:sextrans-85-i12.pdf ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 A figure is published online only at http://sti.bmj.com/content/vol85/issueSupplI |
ISSN: | 1368-4973 1472-3263 |
DOI: | 10.1136/sti.2008.034009 |