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Table 1 Demographic and key risk behavior characteristics of male injecting drug users enrolled into a longitudinal cohort study in Kabul, Afghanistan (N = 483)
| Continuous Variables | Mean | Median | IQR |
|---|---|---|---|
| Age (years) | 29.6 | 28 | 24-33 |
| Level of education (years) | 5.3 | 5 | 0-7 |
| Age initiated injecting (years) | 25.8 | 24 | 21 - 29 |
| Duration of injecting (years) | 4.0 | 2 | 1 - 6 |
| Number of daily injections | 5.7 | 6 | 5 - 6 |
| Dichotomous Variables | N | % | |
| Ever married | 224 | 46.4 | |
| Born in Afghanistan | 418 | 87.1 | |
| Lived outside Afghanistan in last 5 years | 310 | 64.7 | |
| Employed at enrollment | 56 | 11.7 | |
| Prior incarceration | 302 | 63.1 | |
| Initiated drug use with injecting | 39 | 8.1 | |
| Initiated injecting in the last year | 111 | 23.0 | |
| Initiated injection inside Afghanistan | 321 | 66.5 | |
| Ever shared needles/syringes | 81 | 16.9 | |
| Shared needles/syringes in last 3 months | 31 | 6.4 | |
| Ever shared injecting equipment | 189 | 38.4 | |
| Shared injecting equipment in last 3 months | 132 | 27.3 | |
| Ever inject/re-aspirate blood (khoon bozee) | 337 | 70.2 | |
| Prior addiction treatment | 70 | 14.6 | |
| Ever paid woman for sex* | 177 | 40.4 | |
| Ever had sex with another male* | 49 | 11.1 | |
| Ever used condom* | 49 | 11.1 | |
