Drug use and injection practices (N = 164) | N (%) | Population estimates in % [95% CI] |
---|---|---|
Drug used in the last 6 months | ||
Heroin | 130 (79.3) | 84.5 [77.1–92.0] |
Methamphetamine | 74 (45.1) | 42.6 [29.7–55.2] |
Sedatives | 51 (31.1) | 26.7 [16.8–36.5] |
Opium | 28 (17.1) | 17.8 [9.0–26.6] |
Methadone | 115 (70.1) | 72.1 [54.6–89.7] |
Age at first intravenous drug use (years) | ||
< 18 | 31 (18.9) | 16.0 [9.2–23.0] |
18–24 | 63 (38.4) | 38.1 [27.9–48.2] |
≥ 25 | 70 (42.7) | 45.9 [35.2–56.6] |
Duration of intravenous drug use since first injection (years) | ||
< 1 | 25 (15.2) | 15.3 [8.2–22.2] |
1–5 | 49 (29.9) | 31.9 [22.3–41.3] |
5–10 | 34 (20.7) | 16.4 [10.0–23.0] |
≥ 10 | 56 (34.2) | 36.4 [27.4–45.7] |
Frequency of injection (mutually exclusive) | ||
Every day | 55 (33.6) | 29.5 [19.0–40.0] |
Several times per week, but less than every day | 31 (18.9) | 16.0 [9.5–22.5] |
Several times per month, but less than every week | 21 (12.8) | 13.3 [5.8–20.7] |
Once a month or less | 57 (34.8) | 41.1 [30.8–51.7] |
Needle supplier | ||
Pharmacy | 145 (88.4) | 87.9 [81.3–94.4] |
Needle exchange programme | 20 (12.2) | 8.0 [3.4–12.5] |
Friends | 22 (13.4) | 16.9 [9.8–24.0] |
Shared needles (last 6 months) | 45 (27.6) | 22.1 [15.7–28.6] |
Shared other injection material (last 6 months) | 54 (32.9) | 32.0 [23.6–40.4] |
Reused needles (last 6 months) | 109 (66.5) | 63.1 [52.2–73.9] |
Ever experienced an overdose | 43 (26.2) | 22.6 [15.0–30.3] |