Characteristics of IDU in Tallinn, 2007 associated with HIV positive status
| HIV+/total | %HIV+ | OR | 95% CI | p Value | |
| Characteristic | |||||
| HIV serostatus | 193/350 | 55.1 | NA | ||
| Sociodemographic | |||||
| Age (years) | |||||
| 24 or less | 72/135 | 53.3 | 1 | ||
| 25+ | 121/215 | 56.3 | 0.67 | 0.41 to 1.1 | 0.1 |
| Gender | |||||
| Male | 157/294 | 53.4 | 1 | ||
| Female | 36/56 | 64.3 | 1.60 | 0.87 to 2.84 | 0.1 |
| Main source of income in past 4 weeks | |||||
| Full/part-time work | 83/187 | 44.4 | 1 | ||
| Other | 110/163 | 67.5 | 2.60 | 1.68 to 4.02 | 0.000 |
| Ethnicity | |||||
| Estonian | 24/53 | 45.3 | 1 | ||
| Russian, other Russian speaking | 169/297 | 56.9 | 1.60 | 0.89 to 2.87 | 0.1 |
| Injecting drug use characteristics | |||||
| Age at beginning to inject (years) | |||||
| 17 or less | 105/163 | 64.4 | 2.39 | 1.35 to 4.32 | 0.001 |
| 18+ | 88/187 | 47.1 | 1 | ||
| Frequency of injection (past 4 weeks) | |||||
| Less than daily | 62/136 | 45.6 | 1 | ||
| Daily | 131/210 | 62.4 | 1.98 | 1.28 to 3.07 | 0.020 |
| Main drug injected in past 4 weeks | |||||
| Amphetamine | 24/90 | 26.7 | 1 | ||
| Opioids (fentanyl) | 161/248 | 64.9 | 5.09 | 2.98 to 8.69 | 0.000 |
| Shared needles or syringes during past 6 months | |||||
| No | 107/223 | 48.0 | 1 | ||
| Yes | 85/124 | 68.6 | 2.36 | 1.49 to 3.74 | 0.000 |
| Sexual risk behaviours | |||||
| No of sexual partners in past 12 months | |||||
| 0/1 | 108/191 | 56.5 | 1 | ||
| 2+ | 8/159 | 53.5 | 0.88 | 0.58 to 1.35 | 0.563 |
| Environmental factors | |||||
| Ever been in prison? | |||||
| No | 75/146 | 51.4 | 1 | ||
| Yes | 118/204 | 57.8 | 1.30 | 0.85 to 2.0 | 0.200 |
| Ever received drug treatment? | |||||
| No | 108/214 | 50.5 | 1 | ||
| Yes | 85/136 | 62.5 | 1.64 | 1.06 to 2.54 | 0.028 |
| Ever attended needle exchange? | |||||
| No | 27/76 | 35.5 | 1.0 | ||
| Yes | 162/269 | 60.2 | 2.75 | 1.62 to 4.67 | 0.000 |
IDU, injection drug user.