TABLE 2—
Logistic Regression Model of Associations With Hepatitis C Antibody Positivity: Cortland County, NY, March–July 2012
| Variable | Unadjusted OR (95% CI) | AORa (95% CI) |
| Age, y | ||
| < 30 | 2.61 (1.06, 6.44) | . . . |
| ≥ 30 (Ref) | 1.00 | . . . |
| Gender | ||
| Female | 0.58 (0.22, 1.47) | 0.27 (0.08, 0.88) |
| Male (Ref) | 1.00 | 1.00 |
| Housing | ||
| Rent or own a home or apartment (Ref) | 1.00 | . . . |
| Living in a residential program | . . . | . . . |
| Homeless/living with friends | 1.57 (0.58, 4.29) | . . . |
| Age at first injection, y | ||
| < 18 | 0.12 (0.01, 1.26) | . . . |
| 18–20 | 0.19 (0.02, 2.06) | . . . |
| 21–29 (Ref) | 1.00 | . . . |
| 30–39 | 0.67 (0.05, 9.47) | . . . |
| 40–49 | . . . | . . . |
| Use syringe exchange program to obtain syringes in the past 12 mo | ||
| Yes | 5.83 (1.83, 18.63) | . . . |
| No (Ref) | 1.00 | . . . |
| Fish for a vein | ||
| Never fish for a vein | 0.34 (0.14, 0.84) | . . . |
| Sometimes/always fish for a vein (Ref) | 1.00 | . . . |
| Share any equipment while injecting in the past 12 mob | ||
| Yes | 2.71 (1.03, 7.16) | 3.79 (1.20, 12.00) |
| No (Ref) | 1.00 | 1.00 |
| Inject prescription opiate | ||
| Yes | 4.69 (1.85, 11.92) | 5.53 (1.92, 15.91) |
| No (Ref) | 1.00 | 1.00 |
| Inject bath salts | ||
| Yes | 5.40 (1.31, 22.65) | . . . |
| No (Ref) | 1.00 | . . . |
Note. AOR = adjusted odds ratio; CI = confidence interval; OR = odds ratio.
a
Adjusted for all variables in the model.
b
Refers to equipment except needles.