Table 1.
Demographics and baseline risk factors.
| n (%) | ||||||||
|---|---|---|---|---|---|---|---|---|
| Botswana | Kenya | Malawi | Mozambique | South Africa | Tanzania | Zimbabwe | Total | |
| Total enrolled | 150 | 82 | 180 | 26 | 1019 | 33 | 434 | 1924 |
| Age | ||||||||
| <18 | 0 (0.0%) | 0 | 0 | 0 | 1 (0.1%) | 0 | 0 | 1 (0.1%) |
| 18-21 | 24 (16.0%) | 17 (20.7%) | 45 (25.0%) | 12 (46.2%) | 248 (24.3%) | 6 (18.2%) | 37 (8.5%) | 389 (20.2%) |
| 22-25 | 46 (30.7%) | 33 (40.2%) | 33 (18.3%) | 6 (23.1%) | 324 (31.8%) | 6 (18.2%) | 111 (25.6%) | 559 (29.1%) |
| 26-30 | 46 (30.7%) | 25 (30.5%) | 40 (22.2%) | 6 (23.1%) | 256 (25.1%) | 12 (36.4%) | 155 (35.7%) | 540 (28.1%) |
| 31-40 | 33 (22.0%) | 7 (8.5%) | 62 (34.4%) | 2 (7.7%) | 185 (18.2%) | 8 (24.2%) | 129 (29.7%) | 426 (22.1%) |
| 41-50 | 1 (0.7%) | 0 | 0 | 0 | 5 (0.5%) | 1 (3.0%) | 2 (0.5%) | 9 (0.5%) |
| Age median (IQR) | 26 (22-30) | 24 (22-27) | 27 (22-32) | 23 (19-26) | 24 (21-29) | 27 (24-36) | 27 (24-32) | 26 (22-30) |
| Race | ||||||||
| Black | 150 (100%) | 150 (100%) | 150 (100%) | 24 (92.3%) | 999 (98.0%) | 33 (100%) | 434 (100%) | 1902 (98.9%) |
| Asian | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) | 9 (0.9%) | 0 (0.0%) | 0 (0.0%) | 9 (0.5%) |
| Other | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) | 1 (3.8%) | 11 (1.1%) | 0 (0.0%) | 0 (0.0%) | 12 (0.6%) |
| Multiracial | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) | 1 (3.8%) | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) | 1 (0.1%) |
| Risk factors | ||||||||
| Number of sex partners in last 60 days | ||||||||
| 0 | 0 (0.0%) | 0 (0.0%) | 3 (1.7%) | 1 (3.8%) | 18 (1.8%) | 0 (0.0%) | 5 (1.2%) | 27 (1.4%) |
| 1 | 61 (40.7%) | 3 (3.7%) | 92 (51.1%) | 16 (61.5%) | 428 (42.0%) | 5 (15.2%) | 226 (52.1%) | 831 (43.2%) |
| 2 | 56 (37.3%) | 10 (12.2%) | 41 (22.8%) | 8 (30.8%) | 316 (31.0%) | 5 (15.2%) | 67 (15.4%) | 503 (26.1%) |
| 3-4 | 24 (16.0) | 19 (23.2%) | 14 (7.8%) | 0 (0.0%) | 120 (11.8%) | 10 (30.3%) | 49 (11.3%) | 236 (12.3%) |
| ≥5 | 0 (0.0%) | 46 (56.1%) | 28 (15.6%) | 0 (0.0%) | 82 (8.0%) | 7 (21.2%) | 69 (15.9%) | 232 (12.1%) |
| Median (min, max) | 2 (1, 4) | 6 (1, 60) | 1 (0, 200) | 1 (0, 2) | 2 (0, 269) | 3 (1, 21) | 1 (0, 300) | 2 (0, 300) |
| Condom use | ||||||||
| Always | 26 (17.3%) | 22 (26.8%) | 33 (18.3%) | 7 (26.9%) | 188 (18.4%) | 1 (3.0%) | 101 (23.3%) | 378 (19.6%) |
| Sometimes | 94 (62.7%) | 47 (57.3%) | 68 (37.8%) | 16 (61.5%) | 602 (59.1%) | 16 (48.5%) | 228 (52.5%) | 1071 (55.7%) |
| Never | 19 (12.7%) | 8 (9.8%) | 73 (40.6%) | 0 (0.0%) | 143 (14.0%) | 10 (30.3%) | 70 (16.1%) | 323 (16.8%) |
| Missing | 11 (7.3%) | 5 (6.1%) | 6 (3.3%) | 3 (11.5%) | 86 (8.4%) | 6 (18.2%) | 35 (8.1) | 152 (7.9%) |
| Unprotected sex with HIV+ partner | ||||||||
| No | 104 (69.3%) | 32 (39.0%) | 131 (72.8%) | 19 (73.1%) | 700 (68.7%) | 14 (42.4%) | 277 (63.8%) | 1277 (66.4%) |
| Don’t know | 13 (8.7%) | 24 (29.3%) | 21 (11.7%) | 2 (7.7%) | 87 (8.5%) | 10 (30.3%) | 33 (7.6%) | 190 (9.9%) |
| Yes | 0 (0.0%) | 1 (1.2%) | 1 (0.6%) | 0 (0.0%) | 2 (0.2%) | 1 (3.0%) | 1 (0.2%) | 6 (0.3%) |
| Missing | 33 (22.0%) | 25 (30.5%) | 27 (15.0%) | 5 (19.2%) | 230 (22.6%) | 8 (24.2%) | 123 (28.3%) | 451 (23.4%) |
| Unprotected vaginal sex | ||||||||
| No | 15 (10%) | 8 (10%) | 18 (10%) | 3 (12%) | 131 (13%) | 1 (3%) | 56 (13%) | 232 (12%) |
| Yes | 123 (82%) | 69 (84%) | 152 (84%) | 22 (85%) | 709 (70%) | 26 (79%) | 344 (79%) | 1445 (75%) |
| Missing | 12 (8%) | 5 (6%) | 10 (6%) | 1 (4%) | 179 (18%) | 6 (18%) | 34 (8%) | 247 (13%) |
| Exchange of sex for money/gifts | ||||||||
| No | 122 (81.3%) | 25 (30.5%) | 127 (70.6%) | 24 (92.3%) | 788 (77.3%) | 13 (39.4%) | 350 (80.6%) | 1449 (75.3%) |
| Yes | 18 (12.0%) | 50 (61.0%) | 46 (25.6%) | 0 (0.0%) | 137 (13.4%) | 13 (39.4%) | 58 (13.4%) | 322 (16.7%) |
| Missing | 10 (6.7%) | 7 (8.5%) | 7 (3.9%) | 2 (7.7%) | 94 (9.2%) | 7 (21.2%) | 26 (6.0%) | 153 (8.0%) |