Table 2.
Individual determinants
| Intention to use PrEP | Condom use | |||||
|---|---|---|---|---|---|---|
| Intenders (n = 61) | Non-intenders (n = 41) | p value | Consistent (n = 77) | Inconsistent (n = 25) | p value | |
| Demographics | ||||||
| Age (mean ± standard deviation) | 39 ± 11 | 38.3 ± 10.8 | 0.7 | 38.5 ± 11.5 | 39.6 ± 8.8 | 0.6 |
| Years as sex worker (mean ± SD) | 6.5 ± 6.9 | 7.1 ± 7.8 | 0.7 | 6.3 ± 7.2 | 8.2 ± 7.4 | 0.2 |
| High education | 18 (29.5%) | 14 (34.1%) | 0.7 | 24 (32%) | 8 (32%) | 1 |
| Substance use | ||||||
| Drug use (heroin/ cocaine/ marihuana) | 33 (54.1%) | 23 (56.1%) | 0.8 | 34 (44.2%) | 22 (91.7%) | < 0.001 |
| Type of drug | ||||||
| Cocaine | 30 (49.2%) | 18 (43.9%) | 0.6 | 27 (35.1%) | 21 (84%) | < 0.001 |
| Heroine | 21 (34.4%) | 13 (31.7%) | 0.8 | 18 (22.1%) | 16 (65%) | < 0.001 |
| Daily or almost daily drug use | 28 (45.9%) | 18 (43.9%) | 0.8 | 24 (31.2%) | 22 (91.7%) | < 0.001 |
| Route of drug use | ||||||
| Smoked | 26 (42.6%) | 20 (48.8%) | 0.5 | 23 (29.8%) | 22 (88%) | < 0.001 |
| Injected | 8 (13.29%) | 3 (7.5%) | 0.4 | 5 (6.5%) | 6 (24%) | 0.01 |
| Snored | 2 (3.3%) | 2 (4.9%) | 0.7 | 4 (5.2%) | 0 | 0.3 |
| Alcohol use | 19 (31.2%) | 11 (26.8%) | 0.6 | 26 (33.8%) | 4 (16%) | 0.09 |
| Diagnosis of moderate to severe depression (PHQ9) | 25 (41%) | 11 (26.8%) | 0.1 | 21 (27.3%) | 15 (60%) | 0.003 |
| Post-traumatic stress disorder (SIPS*) | 31 (50.8%) | 21 (51.2%) | 1 | 38 (49.4%) | 14/24 (58.4%) | 0.4 |
| Self-perceived risk of HIV infection in the last 3 months | 24 (39.4%) | 8 (19.5%) | 0.04 | 19 (24.6%) | 13 (52%) | 0.01 |
| Diagnosed with at least one STI in the last year | 15 (24.5%) | 9 (22%) | 0.8 | 11 (14.3%) | 13 (52%) | < 0.001 |
| Interest in PrEP and perceptions about PrEP | ||||||
| Interest in PrEP regardless of PrEP delivery route | 61 (100%) | 13 (11%) | < 0.001 | 54 (70.1%) | 20 (80%) | 0.3 |
| Perception of the need for PrEP | ||||||
| I do not worry about contracting HIV; therefore, I do not need to take PrEP | 6 (9.8%) | 17 (41.5%) | < 0.001 | 17 (22.1%) | 6 (24%) | 0.8 |
| I always use condoms; therefore, I do not need PrEP | 11 (18%) | 26 (63.4%) | < 0.001 | 34 (44.2%) | 3 (12%) | 0.004 |
| Concerns about PrEP efficacy and side effects | ||||||
| I would feel protected against HIV if I took PrEP | 59 (96.7%) | 30/39 (76.9%) | 0.003 | 67 (87%) | 22 (88%) | 0.8 |
| I would take PrEP even if it did not protect me 100% against getting infected by HIV | 53 (86.8%) | 24/40 (60%) | 0.002 | 54 (70.2%) | 23 (92%) | 0.03 |
| I would continue using condoms if I took PrEP to protect me against HIV and other STDs | 60 (98.3%) | 36/39 (92.3%) | 0.1 | 73 (94.8%) | 23 (92%) | 0.2 |
| I do not want to take PrEP because I worry about side effects | 13 (21.3%) | 18 (43.9%) | 0.01 | 24 (31.2%) | 7 (28%) | 0.8 |
| Competing priorities | ||||||
| I am very busy; I do not have time to take PrEP | 8 (13.1%) | 10 (24.4%) | 0.1 | 14 (18.2%) | 4 (16%) | 0.8 |
| Inconveniences related to PrEP delivery route | ||||||
| It is difficult to remember to take pills daily | 25 (39%) | 24/40 (60%) | 0.06 | 38 (49.5%) | 11 (44%) | 0.6 |
| I do not have a place to keep the pills | 14 (23%) | 8 (19.5%) | 0.7 | 11 (14.3%) | 11 (44%) | 0.002 |
| I perform regular vaginal hygiene | 42 (68.9%) | 29 (70.7%) | 0.7 | 58 (75.3%) | 13 (52%) | 0.01 |
| I use the vaginal contraceptive ring | 0 | 0 | 0 | 0 | ||
| I do not like needles or injections | 29 (47.5%) | 23 (56.1%) | 0.4 | 36 (46.8%) | 16 (64%) | 0.1 |
p values obtained from chi-squared test, Fisher’s exact test, and Student’s t test
*Single-item post-traumatic stress disorder screener