Table 1.
Sociodemographic characteristics, risk behaviours, and Hepatitis Co-Infection among PWID in Zanzibar, 2012
| Crude N | %a [95% CI] | |
|---|---|---|
| Age | ||
| 15–19 years | 1 | 3.0 [0.0–10.0] |
| 20–24 years | 38 | 11.0 [7.1–15.7] |
| 25–29 years | 100 | 28.9 [22.7–35.5] |
| 30–34 years | 103 | 23.9 [18.8–30.4] |
| ≥ 35 years | 166 | 35.8 [28.9–41.7] |
| Median age in years (IQR) 32 years (IQR 28–38) Min. 18 – Max. 54 | ||
| Sex | ||
| Male | 401 | 98.5 [97.6–99.8] |
| Female | 7 | 1.5 [2.0–2.4] |
| Income TZS among those who know their income | ||
| < 50,000 | 1 | 0.6 [0.0–2.0] |
| 50,000–120,000 | 17 | 12.4 [7.1–18.3] |
| 120,001–200,000 | 18 | 10.6 [6.1–16.7] |
| ≥ 200,001 | 187 | 76.5 [67.8–83.5] |
| Median income 450,000 TZS (IQR 300,000–600,000) Min. 3500 – Max. 12,000,000 | ||
| Duration of injection drug use | ||
| 3 years or less | 167 | 48.0 [41.7–53.8] |
| 4–6 years | 76 | 15.1 [11.9–19.0] |
| 7 years or more | 165 | 36.9 [31.5–42.5] |
| Median duration | 5 Years (IQR 2–9) | |
| Median age at first injection 26 years (IQR 21–30) Min. 12 – Max. 51 | ||
| Ever shared a needle | 224 | 54.8 [48.5–61.0] |
| Injected in the last month with a needle previously used by someone else among all respondents | 122 | 29.1 [23.6–36.2] |
| Injected blood from someone who had taken drugs in the past 1 month (flashblood) | 19 | 4.8 [2.4–7.6] |
| Condom use at last sex with a non-paying partner among those who had a non-paying partner (n = 212) | 68 | 14.4 [10.2–18.2] |
| Number of non-paid partners in past month among those who had a non-paid partner | ||
| 1 partner | 117 | 86.4 [74.6–92.7] |
| 2 or more partners | 29 | 13.6 [7.3–25.4] |
| Median number of past month non-paid sex partners 1 partner (IQR 1–1) Min. 1 – Max. 5 | ||
| Frequency of condom use with non-paid partners in past month among those who had a non-paid partner | ||
| Always | 18 | 15.9 [8.3–23.0] |
| Inconsistently | 34 | 13.1 [7.4–20.3] |
| Never | 144 | 71.0 [62.4–80.0] |
| HBV | 25 | 5.9 [3.5–8.8] |
| HBV and HCV (of those with HBV) | 13 | 33.5 [16.2–56.9] |
| HBV and HIV (of those with HIV) | 7 | 18.8 [7.3–40.4] |
| HCV | 128 | 25.4 [19.1–32.0] |
| HCV and HIV (of those with HIV) | 47 | 29.3 [21.1–39.1] |
| HIV | 67 | 11.3 [7.7–15.2] |
| HIV and HBV (of those with HBV) | 7 | 9.0 [2.3–19.3] |
| HIV and HCV (of those with HCV) | 47 | 66.6 [52.3–83.0] |
| HBV and HCV and HIV (of those with HIV) | 6 | 8.5 [1.8–18.6] |
CI confidence interval, IQR interquartile range, TZS Tanzanian shillings
aRDSAT weighted