Table 2. Multiple logistic regression analysis of factors associated with risk of acquiring a hepatitis C infection in HIV-infected patients in Campo Grande, Brazil, 2013 (n = 848).
| Variable | HCV Positive/total | % | Odds ratio (95% CI 1) | P | Adjusted Odds ratio (95% CI) | P |
|---|---|---|---|---|---|---|
| Gender | ||||||
| Female | 13/365 | 3.6 | 1.0 | 1.0 | ||
| Male | 46/483 | 9.5 | 2.85 (1.54 - 5.54) | <0.01 | 1.67 (0.73 - 3.82) | 0.23 |
| Age (years) | ||||||
| <40 | 16/405 | 4.0 | 1.0 | 1.0 | ||
| ≥ 40 | 43/443 | 9.7 | 2.61 (1.45 - 4.72) | <0.01 | 3.46 (1.52 - 7.90) | <0.01 |
| Marital status | ||||||
| Cohabitating with a partner | 19/377 | 5.0 | 1.0 | 1.0 | ||
| No stable partnership | 40/471 | 8.5 | 1.75 (1.0 - 3.07) | 0.04 | 2.68 (1.21 - 5.92) | 0.02 |
| Education level 2 | ||||||
| Higher | 15/365 | 4.1 | 1.0 | 1.0 | ||
| Lower | 38/446 | 8.5 | 2.17 (1.18 - 4.12) | 0.01 | 1.47 (0.67 - 3.24) | 0.34 |
| Illiterate | 6/37 | 16.2 | 4.49 (1.50 - 12.22) | <0.01 | 2.63 (0.70 - 9.96) | 0.15 |
| Family income (Minimum wage 3) | ||||||
| ≥ 4 | 6/136 | 4.4 | 1.0 | 1.0 | ||
| 1 a 3 | 41/635 | 6.5 | 1.49 (0.65 - 3.95) | 0.38 | 1.16 (0.39 - 3.50) | 0.79 |
| <1 or none | 12/77 | 15.6 | 3.97 (1.44 - 11.94) | 0.01 | 2.08 (0.51 - 8.50) | 0.31 |
| Tattoo/piercing | ||||||
| No | 37/688 | 5.4 | 1.0 | 1.0 | ||
| Yes | 22/160 | 13.8 | 2.80 (1.60 - 4.90) | <0.01 | 1.24 (0.51 - 2.99) | 0.64 |
| Use of illicit drugs | ||||||
| No | 20/691 | 2.9 | 1.0 | 1.0 | ||
| Non-injectable | 14/123 | 11.4 | 4.30 (2.06 - 8.78) | <0.01 | 3.88 (1.64 - 9.15) | <0.01 |
| Injectable | 25/34 | 73.5 | 90.70 (38.31 - 229.18) | <0.01 | 70.74 (23.33 - 214.51) | <0.01 |
| Transfusion before 1994 | ||||||
| No | 43/746 | 5.8 | 1.0 | 1.0 | ||
| Yes | 16/102 | 15.7 | 3.04 (1.64 - 5.63) | 0.01 | 3.05 (1.37 - 6.82) | <0.01 |
| Imprisonment | ||||||
| No | 31/744 | 4.2 | 1.0 | 1.0 | ||
| Yes | 28/104 | 26.9 | 8.48 (4.82 - 14.88) | <0.01 | 1.73 (0.70 - 4.25) | 0.23 |
| Number of sexual partners in the last year | ||||||
| None or 1 | 39/612 | 6.4 | 1.0 | 1.0 | ||
| 2 - 5 | 12/189 | 6.3 | 1.00 (0.49 - 1.91) | 0.87 | 0.55 (0.22 - 1.35) | 0.19 |
| > 5 | 8/47 | 17.0 | 3.01 (1.24 - 6.71) | 0.02 | 1.35 (0.44 - 4.13) | 0.61 |
| HBV positivity 4 | ||||||
| No | 35/626 | 5.6 | 1.0 | 1.0 | ||
| Yes | 24/222 | 10.8 | 2.05 (1.19 - 3.53) | 0.01 | 1.04 (0.51 - 2.14) | 0.92 |
1
Confidence interval;
2
Lower education level was defined as Elementary and Middle Schools, completed or not, and higher education level was defined as completed High School or more;
3
Minimum wage: approximately US$ 300.00 per month;
4
HBsAg and/or anti-HBc positivity. Significant values are indicated in bold.