Table 2. Multivariate multinomial logistic regression model for factors associated with HIV and HCV infection status in the BC Hepatitis Testers Cohorta.
| Variable | HIV+/HCV+ | HIV+ / HCV- | HIV- / HCV+ prevalent | HIV- /HCV+ seroconverters |
|---|---|---|---|---|
| OR (95% CI) | OR (95% CI) | OR (95% CI) | OR (95% CI) | |
| Sex | ||||
| Female | 1 | 1 | 1 | 1 |
| Male | 2.9(2.68, 3.06) | 7.4(6.96, 8.02) | 2.3(2.26, 2.35) | 1.4(1.37, 1.52) |
| Age at diagnosis | ||||
| <15 | 1.1(0.58, 2.03) | 1.6(1.25, 1.94) | 0.4(0.38, 0.47) | 0.7(0.41, 1.14) |
| 15–24 | 14.0(11.26, 17.39) | 1.6(1.46, 1.88) | 0.5(0.49, 0.54) | 5.2(4.55, 5.91) |
| 25–34 | 16.8(13.7, 20.7) | 3.2(2.98, 3.58) | 1.0(1.0, 1.07) | 5.2(4.59, 5.87) |
| 35–44 | 15.9(13.02, 19.63) | 3.6(3.34, 4.0) | 1.94(1.88, 1.99) | 4.2(3.69, 4.74) |
| 45–54 | 8.86(7.13, 11.0) | 2.9(2.63, 3.20) | 2.5(2.49, 2.64) | 2.8(2.46, 3.24) |
| >54 | 1 | 1 | 1 | 1 |
| Urban | ||||
| No | 1 | 1 | 1 | 1 |
| Yes | 1.7(1.49, 1.91) | 1.8(1.60, 2.00) | 0.9(0.88, 0.93) | 1.0(0.93, 1.09) |
| IDUb | ||||
| No | 1 | 1 | 1 | 1 |
| Yes | 14.7(13.67, 15.97) | 1.6(1.45, 1.89) | 7.7(7.49, 8.03) | 33.1(31.2, 35.1) |
| Problematic alcohol useb | ||||
| No | 1 | 1 | 1 | 1 |
| Yes | 2.3(2.12, 2.59) | 1.0(0.90, 1.19) | 1.8(1.74, 1.88) | 1.9(1.80, 2.10) |
| Major mental illnessb | ||||
| No | 1 | 1 | 1 | 1 |
| Yes | 0.7(0.59, 0.73) | 1.2(1.14, 1.38) | 0.7(0.68, 0.73) | 0.9(0.82, 0.94) |
| Active Tbb | ||||
| No | 1 | 1 | 1 | 1 |
| Yes | 0.6(0.30, 1.21) | 1.3(0.82, 2.25) | 0.4(0.30, 0.53) | 0.4(0.18, 0.94) |
| Hepatitis Bb | ||||
| No | 1 | 1 | 1 | 1 |
| Yes | 0.9(0.71, 1.26) | 1.2(0.95, 1.58) | 0.8(0.74, 0.93) | 2(1.61, 2.53) |
| Year of diagnosis | ||||
| >2009 | 1 | 1 | 1 | 1 |
| 2005–2009 | 5.6(4.61, 6.85) | 2.4(2.29, 2.70) | 2.8(2.74, 2.94) | 3.0(2.81, 3.23) |
| 2000–2004 | 26.5(22.12, 31.97) | 5.1(4.78, 5.62) | 7.5(7.35, 7.85) | 6.5(6.10, 7.04) |
| <2000 | 138.5(116.1, 165.2) | 11.6(10.82, 12.61) | 22.6(21.99, 23.39) | 5.5(5.14, 6.05) |
| Social deprivation at time of test | ||||
| Q1 (most privileged) | 1 | 1 | 1 | 1 |
| Q2 | 1.6(1.33, 1.83) | 1.2(1.09, 1.37) | 1.2(1.12, 1.21) | 1.2(1.06, 1.33) |
| Q3 | 2.1(1.8, 2.40) | 1.3(1.19, 1.49) | 1.4(1.34, 1.44) | 1.6(1.47, 1.81) |
| Q4 | 2.9(2.56, 3.39) | 2.0(1.81, 2.22) | 1.56(1.51, 1.61) | 1.86(1.68, 2.06) |
| Q5 (most deprived) | 5.1(4.46, 5.80) | 3.7(3.33, 4.02) | 2.1(2.01, 2.14) | 3.0(2.74, 3.29) |
| Material deprivation at time of test | ||||
| Q1 (most privileged) | 1 | 1 | 1 | 1 |
| Q2 | 1(0.94, 1.17) | 0.7(0.6, 0.7) | 1.3(1.29, 1.38) | 1.3(1.21, 1.46) |
| Q3 | 1(0.88, 1.11) | 0.5(0.47, 0.56) | 1.5(1.42, 1.52) | 1.4(1.26, 1.51) |
| Q4 | 1.3(1.2, 1.46) | 0.5(0.48, 0.56) | 1.7(1.64, 1.74) | 1.8(1.64, 1.94) |
| Q5 (most deprived) | 2.3(2.09, 2.52) | 0.7(0.62, 0.71) | 2.1(2.06, 2.2) | 2.3(2.13, 2.52) |
Abbreviations: IDU, injection drug use.
a Reference group: HIV-/HCV-.
b Factor assessed for past 3 years before diagnosis or last negative test.