Table 2.
Predictors of willingness to Share PrEP information within Dyads (Tie Level, m = 375)
| Total sample | Willing to share PrEP information within Dyad | ||||
|---|---|---|---|---|---|
| No 63 (16.8%) | Yes 312 (83.2%) | Unadjusted Odds Ratios (95%CI) | Adjusted Odds Ratios (95% CI) | ||
| Alter socio-demographics | |||||
| Mean Age ± SD | 40.0 ± 12.8 | 43.8 ± 14.7 | 39.2 ± 12.2 | 0.9** (0.9–0.9) | – |
| Female | 237 (63.2) | 19 (30.2) | 218 (69.9) | 5.8** (2.5–13.6) | – |
| Race | |||||
| White | 203 (54.3) | 23 (36.5) | 180 (57.9) | REF | – |
| Black | 116 (31.0) | 31 (49.2) | 85 (27.3) | 0.36** (0.2–0.8) | – |
| Other | 55 (14.7) | 9 (14.3) | 46 (14.8) | 0.65 (0.3–1.6) | – |
| Hispanic ethnicity | 49 (13.1) | 9 (14.2) | 40 (12.9) | 0.84 (0.4–1.9) | – |
| Social relations | |||||
| Relationship | |||||
| Acquaintance | 87 (23.2) | 13 (20.6) | 74 (23.7) | REF | REF |
| Friend | 133 (35.5) | 13 (20.6) | 120 (38.5) | 1.03 (0.9–1.1) | 0.6 (0.1–5.4) |
| Family member | 64 (17.1) | 9 (14.3) | 55 (17.6) | 1.02 (0.9–1.2) | 0.1** (0.0–0.3) |
| Main romantic partner | 29 (7.7) | 5 (7.9) | 24 (7.7) | 1.0 (0.8–1.1) | 1.0 (0.0–33.8) |
| Casual sex partner | 14 (3.7) | 6 (9.5) | 8 (2.6) | 0.2** (0.0–1.3) | 0.7 (0.02–19.3) |
| Transactional sex client | 23 (6.1) | 11 (17.5) | 12 (3.9) | 0.1** (0.0–0.6) | 0.1 (0.0–1.8) |
| Drug buddy | 25 (6.7) | 6 (9.5) | 19 (6.1) | 0.8* (0.7–0.9) | 0.6 (0.0–8.4) |
| Mean trust ± SD | 5.6 ± 3.5 | 4.5 ± 3.12 | 5.8 ± 3.6 | 1.1** (1.0–1.3) | 0.56 (0.1–5.4) |
| Mean emotional closeness ± SD | 5.8 ± 3.31 | 4.4 ± 2.9 | 6.1 ± 3.3 | 1.2** (1.0–1.4) | – |
| Never/rarely verbally fight | 271 (72.3) | 44 (69.8) | 227 (72.8) | 1.0 (1.0–1.1) | – |
| Never/rarely physically fight | 351 (93.8) | 60 (95.2) | 291 (93.6) | 1.0 (0.9–1.2) | – |
| Homeless | 126 (34.0) | 9 (14.8) | 117 (37.7) | 3.3** (1.5–7.6) | 2.8* (1.0–7.5) |
| Injects drugs | 231 (61.6) | 28 (44.4) | 203 (65.1) | 2.3** (1.1–4.7) | – |
| Receives drugs/money/goods in exchange for sex | 157 (41.8) | 10 (15.9) | 147 (47.1) | 4.5** (1.6–12.5) | – |
| Perceived HIV status of alter | |||||
| HIV negative | 223 (59.5) | 47 (74.6) | 176 (56.4) | REF | – |
| HIV positive | 9 (2.4) | 1 (1.6) | 8 (2.5) | 1.1 (0.8–1.4) | – |
| Unknown HIV status | 143 (38.1) | 15 (23.8) | 128 (41.0) | 1.1* (1.0–1.2) | – |
| Perceived to be at high/medium risk for HIV | 186 (50.8) | 21 (33.9) | 165 (54.3) | 1.1* (1.1–1.2) | 4.2* (1.6–11.1) |
| Currently taking PrEP | 19 (5.1) | 0 (0.0) | 19 (6.1) | 1.2+ (0.9–1.4) | – |
| Mean alters’ interest in taking PrEP ± SD | 3.3 ± 2.5 | 2.4 ± 1.9 | 3.5 ± 2.6 | 1.0 (1.0–1.0) | – |
| Homophily | |||||
| Gender homophily | 237 (63.2) | 19 (30.2) | 218 (69.9) | 5.8** (2.5–13.6) | 3.7* (1.2–11.6) |
| Race/ethnicity homophily | 234 (64.7) | 40 (64.5) | 194 (64.7) | 1.0 (0.9–1.1) | – |
| Injection drug use Homophily | 231 (61.6) | 28 (44.4) | 203 (65.1) | 2.3* (1.1–4.7) | – |
| Transactional sex homophily | 95 (25.8) | 5 (7.9) | 90 (29.5) | 1.2* (1.1–1.2) | – |
| Mean age difference ± SD | 0.25 ± 1.9 | −2.0 ± 1.9 | 0.7 ± 0.78 | 1.0 (1.0–1.0) | – |
| Do not live in same neighborhood | 209 (55.7) | 25 (39.7) | 184 (59.0) | 0.5+ (0.2–1.0) | – |
| Interactions within Dyads | |||||
| Shares drug injection equipment | 18 (7.8) | 3 (10.7) | 15 (7.4) | 0.95 (0.8–1.1) | – |
| Sexual relationship | 85 (22.7) | 27 (42.9) | 58 (18.6) | 0.3** (0.1–0.5) | – |
| Frequency of interaction | – | ||||
| Daily/multiple times per week | 271 (72.3) | 36 (57.1) | 235 (75.3) | REF | – |
| Monthly | 76 (20.3) | 18 (28.6) | 58 (18.6) | 0.5+ (0.3–1.1) | – |
| Yearly or less | 28 (7.5) | 9 (14.3) | 19 (6.1) | 0.3+ (0.1–1.0) | – |
| Mean relationship length in years ± SD | 11.4 ± 0.73 | 14.6 ± 18.2 | 10.8 ± 13.2 | 0.5+ (0.3–1.1) | 0.9+ (0.9–0.9) |
| Interaction terms | |||||
| Closeness x Friend | – | – | – | – | 1.3 (0.9–1.9) |
| Closeness x Family | – | – | – | – | 1.9* (1.1–3.4) |
| Closeness x Main Partner | – | – | – | – | 1.2 (0.8–1.9) |
| Closeness x Casual Partner | – | – | – | – | 1.0 (0.6–1.7) |
| Closeness x Transactional sex client | – | – | – | – | 1.7* (1.1–2.8) |
| Closeness x Drug Buddy | – | – | – | – | 1.1 (0.6–1.9) |
| Closeness x Friend | – | – | – | – | 1.3 (0.9–1.9) |
+
p < 0.10
*
p < 0.05
**
p < 0.01