Table 2. Univariate and multivariate logistic regression analysis for HIV pre-exposure prophylaxis utilization among 201 patients in three US cities (Jackson, Mississippi; St. Louis, Missouri; Providence, Rhode Island) from January 2014 to December 2015.
| Characteristic | Unadjusted OR (95% CI) | Model 1* aOR (95% CI) | Model 2** aOR (95% CI) | Model 3*** aOR (95% CI) |
|---|---|---|---|---|
| Age Group | ||||
| < 30 years | 1.0 | 1.0 | 1.0 | 1.0 |
| ≥ 30 years | 1.21 (0.58–2.49) | 0.92 (0.41–2.10) | 0.95 (0.41–2.18) | 0.95 (0.41–2.19) |
| Race | ||||
| White | 1.0 | 1.0 | 1.0 | 1.0 |
| Not White | 0.63 (0.30–1.30) | 0.99 (0.40–2.47) | 0.86 (0.34–2.19) | 0.90 (0.35–2.35) |
| Education | ||||
| < College | 1.0 | 1.0 | 1.0 | 1.0 |
| ≥ College | 1.04 (0.49–2.21) | 0.87 (0.38–1.98) | 0.81 (0.36–1.85) | 0.82 (0.36–1.88) |
| Income | ||||
| < $25000 | 1.0 | 1.0 | 1.0 | 1.0 |
| ≥ $25000 | 1.75 (0.84–3.66) | 1.19 (0.49–2.90) | 1.23 (0.50–3.00) | 1.21 (0.50–2.97) |
| Insurance | ||||
| No | 1.0 | 1.0 | 1.0 | 1.0 |
| Yes (public or private) | 3.65 (1.67–7.97) | 3.48 (1.39–8.69) | 4.49 (1.68–12.01) | 3.98 (1.36–11.63) |
| State Medicaid Expansion† | ||||
| No | 1.0 | - | 1.0 | - |
| Yes | 0.84 (0.41–1.76) | - | 0.46 (0.19–1.10) | - |
| Site | ||||
| Providence | 1.0 | - | - | 1.0 |
| St. Louis | 2.47 (0.84–7.25) | - | - | 2.58 (0.86–7.70) |
| Jackson | 0.79 (0.36–1.74) | - | - | 1.82 (0.62–5.38) |
Abbreviations: OR, odds ratio; aOR, adjusted OR
*Adjusted for age, race, education, income, and individual insurance coverage
**Adjusted for age, race, education, income, individual insurance coverage, and state Medicaid expansion
***Adjusted for age, race, education, income, individual insurance coverage, and study site
†Medicaid Expansion State: Rhode Island