Knowledge outcomes: youth and adults
Next, we examined the impact of the intervention on UNAIDS Knowledge and the HIV/PMCTC Knowledge Index for youth and adults separately. Youth and Adult subsample descriptions and bivariate tables are in Additional files In general, adult baseline knowledge levels were higher than youths, and knowledge increased over time for both adults and youth regardless of intervention group (Figs. UNAIDS Knowledge by age groupHIV/PMTCT Knowledge Index (mean) by age groupMultivariate GEE model results for the youth and adult separate analyses on UNAIDS Knowledge are in Table Results of GEE model for UNAIDS Knowledge (Range 0 - 1) for youth and adultsSimilarly, intervention effectiveness was identified for the HIV/PMTCT knowledge index (Table Results of MRM model for HIV/PMTCT Knowledge Index for youth and adultsWhen youth and adult samples were examined separately, some sociodemographic factors affected the knowledge measures consistently, while others affected knowledge in opposite ways for youth and adults. Education effects on knowledge were consistent between youth and adult samples; higher education improved both knowledge measures. Conversely, multivariate modeling results confirmed the opposite effects of self-identified sex shown in the bivariate analyses of separate age groups. Female youth had lower mean scores on the HIV/PMTCT Knowledge Index compared to male youth (estimate = -0.36, 