Table 1.
Baseline demographic and behavioural characteristics
|
Characteristic N(%) or median (IQR) |
Incentive N = 101 |
Control N = 99 |
Total N = 200 |
|---|---|---|---|
| Demographics | |||
| Age, median (years) | 19 (17.0, 21.0) | 19 (17.0, 21.0) | 19 (17.0, 21.0) |
| Education | |||
| Primary or some secondary school | 52 (61.4%) | 61 (62.3%) | 113 (61.8%) |
| Completed secondary school or higher | 39 (38.7%) | 35 (34.7%) | 60 (30.2%) |
| Partnership characteristics | |||
| Has a primary sexual partner | 82 (81.2%) | 90 (90.9%) | 172 (86.0%) |
| Primary partner is ≥ 5 years older than participant | 12 (14.6%) | 22 (24.4%) | 34 (19.8%) |
| Primary partnership duration (months) | 12 (6.0, 36.0) | 12 (6.0, 24.0) | 12 (6.0, 36.0) |
| Number of sex partners, past three months | |||
| 0 | 17 (16.8%) | 10 (10.1%) | 27 (13.5%) |
| 1 | 78 (77.2%) | 83 (83.8%) | 161 (80.5%) |
| ≥2 | 6 (5.9%) | 6 (6.1%) | 12 (6.0%) |
| Partner has other sex partners | |||
| Yes | 17 (16.8%) | 16 (16.2%) | 33 (16.5%) |
| No | 29 (28.7%) | 29 (29.3%) | 58 (29.0%) |
| Not sure | 55 (54.5%) | 54 (54.5%) | 109 (54.5%) |
| Partner HIV status | |||
| HIV negative | 60 (59.4%) | 50 (50.5%) | 110 (55.0%) |
| HIV positive | 0 (0%) | 1 (1.0%) | 1 (0.5%) |
| Participant does not know | 41 (40.6%) | 48 (48.5%) | 89 (44.5%) |
| Intimate Partner Violence in past year | 20 (19.8%) | 17 (17.3%) | 37 (18.6%) |
| Transactional sex a | 2 (2.0%) | 3 (3.0%) | 5 (2.5%) |
| Contraceptive use, Sexual and Alcohol use behaviours | |||
| Contraceptive Method (multiple choices allowed) | 100 | 98 | 198 |
| None | 1 (1.0%) | 0 (0%) | 1 (0.5%) |
| Birth control pills | 7 (6.9%) | 9 (9.1%) | 16 (8.0%) |
| Injectable | 73 (72.3%) | 68 (68.7%) | 141 (70.5%) |
| Implant | 14 (13.9%) | 12 (12.1%) | 26 (13.0%) |
| IUD | 0 (0%) | 2 (2.0%) | 2 (1.0%) |
| Male condoms | 9 (8.9%) | 9 (9.1%) | 18 (9.0%) |
| Sexually active, prior 30 days | 78 (77.2%) | 74 (74.7%) | 152 (76.0%) |
| Condom use, prior 30 days | 78 | 74 | 152 |
| Never | 15 (19.2%) | 18 (24.3%) | 33 (21.7%) |
| Rarely or sometimes | 32 (41.0%) | 38 (51.4%) | 2 (46.0%) |
| Often | 5 (6.4%) | 2 (2.7%) | 7 (4.6%) |
| Always | 26 (33.3%) | 16 (21.6%) | 42 (27.6%) |
| Alcohol use, prior three months | |||
| Never | 31 (30.7%) | 27 (27.3%) | 58 (29.0%) |
| Monthly or less frequently | 59 (58.4%) | 56 (56.6%) | 115 (57.5%) |
| Weekly | 10 (9.9%) | 16 (16.2%) | 26 (13.0%) |
| STI testing b | |||
| Trichomonas | 8 (7.9%) | 4 (4.0%) | 12 (6.0%) |
| Chlamydia | 25 (25.0%) | 24 (24.2%) | 49 (24.6%) |
| Gonorrhoea | 11 (11.0%) | 10 (10.1%) | 21 (10.6%) |
| Any STI (trichomonas, chlamydia and/or gonorrhoea) | 34 (33.7%) | 30 (30.3%) | 64 (32.0%) |
| PrEP disclosure plans | |||
| Disclosed plan to take PrEP | 92 (91.1%) | 90 (90.9%) | 182 (91.0%) |
a
Transactional sex is defined as having sex with a man because he provided her with or she expected he would provide her with food, clothes, cosmetics, items for children, transportation, cash, school fees, mobile phone air time and other items
b
Testing for Neisseria gonorrhoeae and Chlamydia trachomatis was by nucleic acid amplification (GenXpert™) and Trichomonas vaginalis by the rapid OSOM™ test.