Effects of Sexuality Education on Sexual Knowledge, Sexual Attitudes, and Sexual Behaviors of Youths in China: A Cluster-Randomized Controlled Trial

Purpose: There is a lack of trained educators and age-appropriate teaching materials for sex ed-ucation in China. This study aims to assess the effects of an internet-based sexuality education programme on sexual knowledge, attitudes, and behaviors among adolescents in China.Methods: We undertook a multicentre, cluster-randomized controlled trial in 29 vocational high schools in Guangdong and Yunnan, China. Students in the intervention group received weekly sexuality education delivered over two months based on a sexuality education package named "You and Me". A questionnaire was completed at baseline by all students, after receiving a sexu-ality education by the intervention group, and once a year after receiving sexuality education by the intervention group or at a similar time point by the control group.Results: Between October 2018 and December 2019, 3,151 participants from 29 schools/clusters were recruited, from which 1,760 students were randomly assigned to receive an eight-session internet-based sexuality education package. Significant improvements were observed for both sexual knowledge and sexual attitudes immediately after the intervention and one year after the intervention. However, no significant effects were observed for sexual behaviors.Discussion: The internet-based sexuality education package was found to positively affect the sexual knowledge and sexual attitudes among adolescents, providing a potential solution to the lack of trained educators and teaching resources for implementing country-wide sexuality edu-cation in China. However, further research is still needed to determine the effects of sexuality education packages on sexual behaviors.(c) 2022 Society for Adolescent Health and Medicine. All rights reserved.