Table 1.

Randomized controlled trials of HIV/STI and/or drug abuse preventive interventions with African American and Hispanic youth.

Author	Platform	Sample	n	Study Stage	Study Design	Results
Marsch et al, 2015	Internet (Web)	Youth aged 12-18 years; 51% Hispanic, 43% Black	141	Effectiveness	RCT; face-to-face intervention or Web-delivered therapeutic education system. Follow-up conducted two weeks postbaseline.	Participants in both conditions reported reductions in past 30-day sex partners at two-week follow-up
Mason et al, 2015	Mobile (texting)	Youth aged 14-18 years; 90.8% African American	72	Efficacy	RCT; personalized motivational text messages or general health text control condition. Follow-up conducted at one, three, and six months postbaseline.	Participants in the experimental group had decreased past 30-day cigarette smoking, compared to control at six-month follow-up
Mustanski et al, 2013	Internet (Web)	Youth aged 18-24 years; 47% Hispanic, 12.7% African American	102	Preliminary efficacy	RCT; experimental condition or an online didactic HIV knowledge control condition. Follow-up conducted at six and twelve weeks.	Participants in the experimental condition reported a 44 % lower rate of unprotected anal sex acts at the 12-week follow-up