Self-reported sexual behaviours by age cohort*
| Sexual behaviour | Total | 18–30 years | 31–44 years | 45–70 years | p |
|---|---|---|---|---|---|
| (N=3047) | (N=1523) | (N=1131) | (N=393) | ||
| [n (%)] | [n (%)] | [n (%)] | [n (%)] | ||
| Age at first vaginal sex (years) | <0.0001 | ||||
| ≤14 | 551 (18.1) | 265 (17.4) | 203 (18.0) | 83 (21.1) | |
| 15–17 | 1335 (43.8) | 722 (47.4) | 455 (40.2) | 158 (40.2) | |
| 18–20 | 816 (26.8) | 427 (28.0) | 286 (25.3) | 103 (26.2) | |
| ≥21 | 317 (10.4) | 100 (6.6) | 172 (15.2) | 45 (11.5) | |
| Missing/not available | 28 (0.9) | 9 (0.6) | 15 (1.3) | 4 (1.0) | |
| Ever had oral sex | <0.0001 | ||||
| Yes | 2743 (90.0) | 1415 (92.9) | 1010 (89.3) | 318 (80.9) | |
| No | 304 (10.0) | 108 (7.2) | 121 (10.7) | 75 (19.1) | |
| Ever had anal sex | <0.0001 | ||||
| Yes | 1514 (49.7) | 674 (44.3) | 648 (57.3) | 192 (48.9) | |
| No | 1513 (49.7) | 840 (55.2) | 475 (42.0) | 198 (50.4) | |
| Unknown/refused | 20 (0.7) | 9 (0.6) | 8 (0.7) | 3 (0.8) | |
| Ever exchanged sex for money or drugs | 0.0001 | ||||
| Yes | 328 (10.8) | 134 (8.8) | 157 (13.9) | 37 (9.4) | |
| No | 2707 (88.8) | 1384 (90.9) | 971 (85.9) | 352 (89.6) | |
| Unknown/refused | 12 (0.4) | 5 (0.3) | 3 (0.3) | 4 (1.0) | |
| Condom use with vaginal sex in recent past | <0.0001 | ||||
| No vaginal sex in recent past | 221 (7.3) | 114 (7.5) | 57 (5.0) | 50 (12.7) | |
| Never | 1123 (36.9) | 372 (24.4) | 532 (47.0) | 219 (55.7) | |
| Sometimes | 1054 (34.6) | 654 (42.9) | 342 (30.2) | 58 (14.8) | |
| Always | 610 (20.0) | 368 (24.2) | 189 (16.7) | 53 (13.5) | |
| Unknown/refused | 39 (1.3) | 15 (1.0) | 11 (1.0) | 13 (3.3) | |
| Lifetime female sexual partners (n) | <0.0001 | ||||
| 1 | 283 (9.3) | 201 (13.2) | 69 (6.1) | 13 (3.3) | |
| 2–9 | 1381 (45.3) | 804 (52.8) | 455 (40.2) | 122 (31.0) | |
| 10–19 | 546 (17.9) | 236 (15.5) | 229 (20.3) | 81 (20.6) | |
| 20–49 | 492 (16.1) | 180 (11.8) | 211 (18.7) | 101 (25.7) | |
| ≥50 | 179 (5.9) | 44 (2.9) | 92 (8.1) | 43 (10.9) | |
| Unknown/refused | 166 (5.5) | 58 (3.8) | 75 (6.6) | 33 (8.4) | |
*Percentages may not total to 100 due to rounding.