Partner Meeting Contexts and Risky Behavior in College Students' Other-Sex and Same-Sex Hookups.

We analyzed a sample of 12,065 hookup encounters among college students at 22 colleges and universities in the Online College Social Life Survey (OCSLS) to explore how partner meeting locales may influence college students' risky behavior when hookup partners are met in those contexts. For other-sex encounters, meeting in bars or at parties, through common interest groups or history, and (for women) at dormitories was associated with binge drinking during encounters, while meeting online and (for women) in public was associated with reduced binge drinking during encounters. Unprotected sex during other-sex encounters was more common when partners were met in public and less common with partners met in dormitories. Binge drinking and marijuana use during or just prior to encounters was associated with an increased risk of unprotected sex and other substance use. Marijuana use and unprotected sex during encounters was more common when students knew their hookup partner better or had hooked up with the partner before, while binge drinking was associated with hooking up with less familiar partners. Associations of meeting contexts with behavior were explained by the locale's association with institutional and personal trust, social scripts, and selection into certain contexts by students with a risk-taking personality.