Half the women completing Phase I at each site were then randomized to a Phase II study arm receiving a community-based male and female condom promotion intervention, while the other half entered Phase II receiving the same community-based male and female condom promotion supplemented with clinic-based counseling. This sequential randomization scheme allowed measurement of the short-term (within 6 months) effect of clinic-based counseling on male condom use and STI prevalence, and the short-term effect of clinic-based counseling on male condom + female condom use and STI prevalence. A similar data collection process was used, with measurement of male and female condom use in all three visits, and STI testing in the third visit only.