Background: There is limited evidence addressing the impact of adverse childhood experiences (ACEs) on adolescent sexual risk behaviors and pregnancy. In this study, we examined whether individual and cumulative ACEs increased the risk of unhealthy sexual behaviors and adolescent pregnancy. To inform intervention efforts, potential mediating…

This study focuses on the sexual phenomenon of "hooking up." A hook-up is defined as a single sexual encounter that may or may not include sexual intercourse with someone who is a stranger, brief acquaintance, or friend. The aim of this study was to document the prevalence of hook-ups in a sample of 1,011 urban middle and high school…