Table 1.

Demographic data of study participants at the three survey sites

CharacteristicNo. of subjects froma:
Site 1Site 2Site 3All sites
 Not reported112325
Age (yr)
 Not reported122528
Reason for providing specimen
 Blood donor2,000022,002
 High-risk contact0243165408
 HIV contact0324072
 Intravenous drug use0151934
 Symptoms compatible with AIDS013723160
 Not reported122528
Total subjects2,0021,0021,4444,448
  • a Site 1, blood collection center, Port-of-Spain, Trinidad and Tobago; site 2, Queen’s Park Counseling Center, Port-of-Spain, Trinidad and Tobago; site 3, Comprehensive Health Clinic, Nassau, Bahamas.