Abstract
This study attempted to provide basic data for creating a program to help promote safe sexual behavior among runaway female at-risk adolescents by identifying factors related to the sexual experiences. This study conducted a logistic regression analysis using data regarding 182 female at-risk adolescents, which were sourced from the 2016 survey of Korean adolescents' contact with media usage and harmful environment. This study showed that adolescents' age, smoking, and harmful environments are associated with the occurrence of sexual activity among at-risk female adolescents. One significant outcome of this study was the identification of harmful environmental factors and their impact on sexual behavior. Since smoking and sex-related problems among adolescents can act as risk factors for adult sexual health in the future, schools should institute direct and indirect channels for assessing sex-related problems among runaway female at-risk adolescents and establishing proactive and preventive measures for promoting their sexual health. In addition, a social cooperation system should be established in order to assess, and mediate within, the environments around schools in order to minimize adolescents' exposure to harmful environments.