Skip to main content

Table 2 Prevalence of HIV based on selected drug injecting behaviours of IBBS participants, Pokhara Valley (Nepal)

From: Trends and determinants of HIV transmission among men who inject drugs in the Pokhara Valley, Nepal: analysis of cross-sectional studies

  2003    2005    2007    2009    2011    2015    2017   
n(a) N(b) % (95% CI) n N % (95% CI) n N % (95% CI) n N % (95% CI) n N % (95% CI) n N % (95% CI) n N % (95% CI)
Injected on previous day
 Yes 55 243 22.6 (17.5–28.4) 46 145 31.7 (24.3–40.0) 23 236 9.7 (6.3–14.3) 17 236 7.2 (4.3–11.3) 2 206 1.0 (0.1–3.5) 1 41 2.4 (0.1–12.9) 3 152 2.0 (0.4–5.7)
 No 11 57 19.3 (10.0–31.9) 22 155 14.2 (9.1–20.7) 3 64 4.7 (1.0–13.1) 0 64 0.0 (0.0–5.6) 9 139 6.5 (3.0–11.9) 8 304 2.6 (1.1–5.1) 14 193 7.3 (4.0–11.9)
Recently used unsterilised needles
 Yes 8 37 21.6 (9.8–38.2) 2 20 10.0 (1.2–31.7) 4 28 14.3 (4.0–32.7) 0 6 0.0 (0.0–45.9) 0 34 0.0 (0.0–10.3)
 No 18 263 6.8 (4.1–10.6) 15 280 5.4 (3.0–8.7) 12 317 3.8 (2.0–6.5) 7 244 2.9 (1.2–5.8) 16 292 5.5 (3.2–8.7)
Injected with a used syringe in the past week
 Yes 18 63 28.6 (17.9–41.3) 11 44 25.0 (13.2–40.3) 7 25 28.0 (12.1–49.4) 2 16 12.5 (1.6–38.3) 2 8 25.0 (3.2–65.1) 0 1 0.0 (0.0–97.5)
 No 48 229 21.0 (15.9–26.8) 46 195 23.6 (17.8–30.2) 19 267 7.1 (4.3–10.9) 15 276 5.4 (3.1–8.8) 11 307 3.6 (1.8–6.3) 3 139 2.2 (0.4–6.2)
 Not applicable 0 8 0.0 (0.0–36.9) 8 61 13.1 (5.8–24.2) 0 8 0.0 (0.0–36.9) 0 8 0.0 (0.0–36.9) 3 30 10.0 (2.1–26.5) 3 205 1.5 (0.3–4.2)
Gave needle to someone else after use in last week
 Yes 12 66 18.2 (9.8–29.6) 8 38 21.1 (9.6–37.3) 3 16 18.8 (4.0–45.6) 1 9 11.1 (0.3–48.2) 1 8 12.5 (0.3–52.7) 0 3 0.0 (0.0–70.8) 0 11 0.0 (0.0–28.5)
 No 54 226 23.9 (18.5–30.0) 49 201 24.4 (18.6–30.9) 23 276 8.3 (5.4–12.2) 16 283 5.7 (3.3–9.0) 12 307 3.9 (2.0–6.7) 6 137 4.4 (1.6–9.3) 17 333 5.1 (3.0–8.0)
 Not applicable 0 8 0.0 (0.0–36.9) 8 61 13.1 (5.8–24.2) 0 8 0.0 (0.0–36.9) 0 8 0.0 (0.0–36.9) 3 30 10.0 (2.1–26.5) 0 205 0.0 (0.0–1.8) 0 1 0.0 (0.0–97.5)
Used a pre-filled syringe in past week
 Yes 5 23 21.7 (7.5–43.7) 5 25 20.0 (6.8–40.7) 4 17 23.5 (6.8–49.9) 1 41 2.4 (0.1–12.9) 1 8 12.5 (0.3–52.7) 0 3 0.0 (0.0–70.8) 1 27 3.7 (0.1–19.0)
 No 61 269 22.7 (17.8–28.2) 51 213 23.9 (18.4–30.3) 22 275 8.0 (5.1–11.9) 16 251 6.4 (3.7–10.1) 12 307 3.9 (2.0–6.7) 6 137 4.4 (1.6–9.3) 16 316 5.1 (2.9–8.1)
 Not applicable 0 8 0.0 (0.0–36.9) 8 53 15.1 (6.7–27.6) 0 8 0.0 (0.0–36.9) 0 8 0.0 (0.0–36.9) 3 30 10.0 (2.1–26.5) 0 205 0.0 (0.0–1.8) 0 2 0.0 (0.0–84.2)
Know where to get clean needles
 Yes 66 300 22.0 (17.4–27.1) 65 294 22.1 (17.5–27.3) 24 295 8.1 (5.3–11.9) 17 299 5.7 (3.3–8.9) 16 344 4.7 (2.7–7.4) 9 310 2.9 (1.3–5.4) 17 301 5.6 (3.3–8.9)
 No 0 0 0 6 0.0 (0.0–45.9) 2 5 40.0 (5.3–85.3) 0 1 0.0 (0.0–97.5) 0 1 0.0 (0.0–97.5) 0 35 0.0 (0.0–10.0) 0 44 0.0 (0.0–8.0)
Average age at first injection
 Above median 30 169 17.8 (12.3–24.4) 35 152 23.0 (16.6–30.5) 17 153 11.1 (6.6–17.2) 11 169 6.5 (3.3–11.3) 13 178 7.3 (3.9–12.2) 2 196 1.0 (0.1–3.6)    
 Below median 36 131 27.5 (20.0–36.0) 3 148 2.0 (0.4–5.8) 9 147 6.1 (2.8–11.3) 6 131 4.6 (1.7–9.7) 3 167 1.8 (0.4–5.2) 7 149 4.7 (1.9–9.4) 13 164 7.9 (4.3–13.2)
Total 66 300 22.0 (17.4–27.1) 65 300 21.7 (17.1–26.7) 26 300 8.7 (5.7–12.4) 17 300 5.7 (3.3–8.9) 16 345 11.3 (2.7–7.4) 9 345 2.6 (1.2–4.9) 17 345 4.9 (2.9–7.8)
  1. n Number of HIV cases, N Total number of participants, IBBS Integrated Biological Behavioural Surveys
\