Trends in HIV prevalence among young people in generalised epidemics: implications for monitoring the HIV epidemic
| Autor: | Jesus M Garcia-Calleja, Mary Mahy, Kimberly Anne Marsh |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
AFRICA
Adult Male Gerontology Adolescent media_common.quotation_subject Hiv epidemic HIV Infections Fertility Dermatology Global Health Ambulatory Care Facilities Young Adult Household survey Prenatal Diagnosis SURVEILLANCE Prevalence Humans Medicine Young adult Young male media_common Family Characteristics Models Statistical Participation bias business.industry Incidence HIV virus diseases Middle Aged Hiv prevalence Infectious Diseases Survey data collection Female Epidemiologic Methods business Supplement Demography |
| Zdroj: | Sexually Transmitted Infections |
| ISSN: | 1472-3263 1368-4973 |
| DOI: | 10.1136/sextrans-2012-050789 |
| Popis: | Background Countries measure trends in HIV incidence to assess the impact of HIV prevention and treatment programmes. Most countries have approximated trends in HIV incidence through modelled estimates or through trends in HIV prevalence among young people (aged 15–24 years) assuming they have recently become sexually active and have thus only been recently exposed to HIV. Methods Trends in HIV incidence are described and results are compared using three proxy measures of incidence: HIV prevalence among young women attending antenatal clinics (ANCs) in 22 countries; HIV prevalence among young male and female nationally representative household survey respondents in 14 countries; and modelled estimates of adult (ages 15–49 years) HIV incidence in 26 countries. The significance of changes in prevalence among ANC attendees and young survey respondents is tested. Results Among 26 countries, 25 had evidence of some decline in HIV incidence and 15 showed statistically significant declines in either ANC data or survey data. Only in Mozambique did the direction of the trend in young ANC attendees differ from modelled adult incidence, and in Mali and Zambia trends among young men differed from trends in adult incidence. The magnitude of change differed by method. Conclusions Trends in HIV prevalence among young people show encouraging declines. Changes in fertility patterns, HIV-infected children surviving to adulthood, and participation bias could affect future proxy measures of incidence trends. |
| Databáze: | OpenAIRE |
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