Changes in HIV Prevalence among men and women aged 15–24 years with different levels of educational attainment between earlier (2003–5) and later (2008–12) nationally-representative population-based surveys in seven sub-Saharan African countries.

<p>Changes in HIV Prevalence among men and women aged 15–24 years with different levels of educational attainment between earlier (2003–5) and later (2008–12) nationally-representative population-based surveys in seven sub-Saharan African countries.</p

Selection of the final study population for each survey included in the analysis.

<p>Selection of the final study population for each survey included in the analysis.</p

HIV prevalence for women aged 15 to 19 for each survey included in the analysis.

<p>The study population were young women aged 15–19 included in nationally representative Demographic and Health Survey (DHS) Household and AIDS indicator surveys (AIS) carried out in the years indicated in the x-axis labels, for whom HIV test results and data on current education were available. The graph shows the percentage of the study population who were found to be HIV positive. Data were weighted to account for individual sampling probabilities. Details of the HIV testing protocol in each site are found in the individual study reports.</p

Percentage of women aged 15 to 19 attending school in the current year for each survey included in the analysis.

<p>The study population were young women aged 15–19 included in nationally representative Demographic and Health Survey (DHS) Household and AIDS indicator surveys (AIS) carried out in the years indicated in the x-axis labels, for whom HIV test results and data on current education were available. The graph shows the percentage of the study population in each country who had attended school in the year in which the survey was conducted. Data were weighted to account for individual sampling probabilities.</p

HIV prevalence by current education status for each 1-year age group for each survey included in the analysis.

<p>The study population were young women aged 15–19 included in nationally representative Demographic and Health Survey (DHS) Household and AIDS indicator surveys (AIS) carried out in the years indicated in the x-axis labels were available. These graphs show the HIV prevalence in each age group stratified by whether individuals attended school in the year in which the survey occurred. Data were weighted to account for individual sampling probabilities.</p

HIV prevalence among those in-school and out of school, and crude and adjusted odds ratios for the association between current school attendance and HIV prevalence in individual surveys.

<p>Data were weighted to account for individual sampling probabilities. <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0198898#pone.0198898.s001" target="_blank">S1 Table</a> presents the adjusted odds ratios and associated confidence intervals for all covariates included in the final adjusted model.</p

RDS validation: Outcome measure estimates over waves of recruitment.

<p>RDS validation: Outcome measure estimates over waves of recruitment.</p

Chains of recruitment in the RDS sites for Hwange (A), Victoria Falls (B) and Mutare (C).

<p>Each circle represents a participant in the survey and the lines represent the passing of recruitment coupons. Orange circles represent women who tested HIV positive and blue circles HIV negative. The green circles in Mutare represent women for whom the HIV status is missing. Finally, the pink circles represent the seeds.</p

Percentage of HIV positive female sex workers who knew their status and were on ART (a).

<p>Percentage of <i>all</i> HIV+ female sex workers who reported that they were on ART (b).</p