Table 4 Covariates of HBV infection in IDUs (univariate analysis)
Parameter | Category | N per category | HBV + N (%) | OR | 95%CI |
|---|---|---|---|---|---|
Age, years (N = 254) | 18-24 | 8 | 12.9 | 1 | Â |
| Â | 25+ | 66 | 34.4 | 3.5 | [1.6; 7.8] |
Nationality (N = 254) | Other | 21 | 39.6 | 1 | Â |
| Â | Portugal | 20 | 38.5 | 2.2 | [1.1; 4.3] |
| Â | Luxembourg | 33 | 22.1 | 2.3 | [1.2; 4.5] |
Heroin career, years (N = 227) | 0-9 | 21 | 22.8 | 1 | Â |
| Â | 10+ | 51 | 37.8 | 2.1 | [1.1; 3.7] |
Cocaine career, years (N = 229) | 0-5 | 17 | 19.8 | 1 | Â |
| Â | 6+ | 51 | 35.7 | 2.2 | [1.2; 4.2] |
Speedball career, years (N = 168) | 0-5 | 22 | 21.4 | 1 | Â |
| Â | 6+ | 30 | 46.2 | 3.2 | [1.6; 6.2] |
Amphetamine carreer, years (N = 158) | 0-5 | 22 | 20.4 | 1 | Â |
| Â | 6+ | 19 | 38.0 | 2.4 | [1.1; 5.0] |