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Distribution of reported HIV/STI risk behaviorsa, by vulnerability scoreb
aHIV/STI risk behaviors in past 3 months: drug use (cocaine, crack, or heroin); sex exchange (exchanged sex for money or drugs); multiple sex partnerships (≥2 male sex partners).
bVulnerability score: number of reported indicators of vulnerability (unstable housing, transience, history of jail, illegal income sources).
