Procedures—the endline cross-sectional survey
The impact of Yathu Yathu was measured in a cross-sectional survey conducted between April and November 2021. Simple random sampling, stratified by sex and age group (15 to 19 or 20 to 24 years) at the time of the population census, was used to select approximately 100 AYP per cluster (approximately 2,000 AYP across all 20 clusters) with equal target sample size for each of the 4 age/sex groups. Details of the survey are described elsewhere [AYP who were contacted and consented to participate completed a questionnaire with questions on: sociodemographic and socioeconomic variables, knowledge of HIV status and uptake of HIV testing, uptake of HIV treatment and prevention services, alcohol use, history of contraceptive use and pregnancy, condom use, and the Hope scale (to measure AYP’s expectations for the future) [