Table 2.
Event-level analyses of unprotected vaginal or anal intercourse at last sex (sexual encounters n=2,006)
| General characteristics | Odds Ratio (95% CI) | p-value | Adjusted Odds Ratio (95% CI) | p-value |
|---|---|---|---|---|
| Recruited in rural county | 1.78 (1.43, 2.22) | < 0.001 | 1.57 (1.22, 2) | < 0.001 |
| Completed high school or GED | 1.01 (0.81, 1.26) | 0.925 | ||
| Working full or part time | 0.94 (0.75, 1.18) | 0.614 | ||
| Married or living as married | 1.84 (1.33, 2.54) | < 0.001 | 1.81 (1.29, 2.54) | 0.001 |
| Currently homeless | 1.22 (0.99, 1.51) | 0.061 | 1.65 (1.28, 2.12) | < 0.001 |
| BSI-18 depression subscale | 1.03 (1.01, 1.05) | < 0.001 | 1.02 (1.00, 1.04) | 0.026 |
| Event-level characteristics | ||||
| # African Americans in encounter | ||||
| both partners | 0.44 (0.32, 0.60) | < 0.001 | 0.62 (0.44, 0.87) | 0.006 |
| one partner | 0.42 (0.30, 0.59) | < 0.001 | 0.56 (0.39, 0.80) | 0.001 |
| reference category -zero partners | -- | -- | -- | -- |
| Age of male partner | 1.00 (0.99, 1.01) | 0.653 | 1.01 (1, 1.02) | 0.253 |
| Age of female partner | 1.00 (1.00, 1.01) | 0.350 | 1 (0.99, 1.01) | 0.758 |
| Perceived HIV discordant | 0.55 (0.34, 0.88) | 0.012 | 0.55 (0.33, 0.90) | 0.018 |
| Encounter involved sex trading | 0.74 (0.60, 0.91) | 0.005 | 0.74 (0.58, 0.95) | 0.020 |
| Known partner for 6 months | 1.84 (1.50, 2.26) | < 0.001 | 1.83 (1.45, 2.30) | < 0.001 |
| 5 or more alcoholic drinks | ||||
| both partners | 1.69 (1.23, 2.32) | 0.001 | 1.53 (1.07, 2.18) | 0.020 |
| one partner | 1.20 (0.89, 1.61) | 0.245 | 1.27 (0.91, 1.77) | 0.158 |
| Reference category-- no one used | -- | -- | -- | -- |
| Methamphetamine | ||||
| both partners | 2.51 (0.36, 17.49) | 0.352 | 1.75 (0.37, 8.28) | 0.481 |
| one partner | 1.70 (0.82, 3.50) | 0.152 | 1.52 (0.68, 3.40) | 0.304 |
| Reference category-- no one used | -- | -- | ||
| Speedball | ||||
| both partners | 1.13 (0.52, 2.47) | 0.755 | 1.75 (0.50, 6.13) | 0.382 |
| one partner | 0.50 (0.30, 0.84) | 0.008 | 0.66 (0.35, 1.24) | 0.192 |
| Reference category-- no one used | -- | -- | -- | -- |
| Crack cocaine | ||||
| both partners | 0.82 (0.65, 1.04) | 0.107 | 0.87 (0.66, 1.15) | 0.335 |
| one partner | 0.86 (0.66, 1.13) | 0.290 | 0.86 (0.63, 1.18) | 0.346 |
| Reference category-- no one used | -- | -- | ||
| Powder cocaine | ||||
| both partners | 0.73 (0.50, 1.05) | 0.091 | 0.60 (0.39, 0.92) | 0.018 |
| one partner | 1.19 (0.89, 1.59) | 0.232 | 1.18 (0.85, 1.65) | 0.326 |
| Reference category-- no one used | -- | -- | -- | -- |
| Heroin | ||||
| both partners | 0.51 (0.23, 1.17) | 0.111 | 0.47 (0.13, 1.69) | 0.247 |
| one partner | 0.67 (0.42, 1.06) | 0.085 | 0.71 (0.41, 1.25) | 0.239 |
| Reference category-- no one used | -- | -- | -- | -- |
| Non-medical prescription opioids | ||||
| both partners | 2.55 (1.36, 4.79) | 0.003 | 2.24 (1.12, 4.49) | 0.023 |
| one partner | 1.32 (0.85, 2.07) | 0.220 | 1.09 (0.61, 1.93) | 0.775 |
| Reference category-- no one used | -- | -- | -- | -- |