Time-space sampling in minority communities: results with young Latino men who have sex with men

OBJECTIVES: This study addressed methodological issues influencing the feasibility of time-space sampling in HIV prevention studies targeting hard-to-reach populations of minority young men who have sex with men (MSM). METHODS: We conducted interviews with 400 men in 32 venues where young Latino MSM congregate in New York City. Response rates and demographic and sexual risk profiles are compared by venue type. RESULTS: More than 90% of the men approached were screened. Among eligible men, participation rates exceeded 82%. Participation was higher at special events and gay venues compared with nongay venues (P < .05). Young MSM in nongay venues were less likely to self-identify as gay (P < .01) or to report recent anal sex with a male (P < .10). Condom use did not vary by venue type but was lower with women than with men. If surveys had been limited to gay venues, about half of the young MSM surveyed in nongay venues would have been missed. CONCLUSIONS: Time-space sampling of a relatively "hidden" minority young MSM population can be successful across a range of venues. However, the benefits of greater outreach must be weighed against the costs incurred recruiting participants in nongay venues.