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Table 1 Sociodemographic characteristics, risk behaviours, and Hepatitis Co-Infection among PWID in Zanzibar, 2012

From: HIV and hepatitis B and C co-infection among people who inject drugs in Zanzibar

  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]
  1. CI confidence interval, IQR interquartile range, TZS Tanzanian shillings
  2. aRDSAT weighted