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Table 1 Characteristics of a community-recruited sample of IDUs in Bangkok, Thailand, participating in the Mitsampan Community Research Project in 2008 and 2009 ( n = 569)

From: Drug-related harm among people who inject drugs in Thailand: summary findings from the Mitsampan Community Research Project

Characteristic Total n(%) Study enrolment
2008 2009
252 (44.3%) 317 (55.7%)
n(column%) n(column%)
Female gender 157 (27.6%) 66 (26.2%) 91 (28.7%)
Age    
  < 35 years 243 (42.7%) 111 (44.0%) 132 (41.6%)
  35-45 years 175 (30.8%) 74 (29.4%) 101 (31.9%)
  ≥ 46 years 151 (26.5%) 67 (26.6%) 84 (26.5%)
Drugs injected at least oncea:    
  Heroin 437 (76.8%) 230 (91.3%) 207 (65.3%)
  Methamphetamine 352 (61.9%) 145 (57.5%) 207 (65.3%)
  Midazolam 421 (74.0%) 166 (65.9%) 255 (80.4%)
Self-reported HIV seropositivity 99 (17.4%) 29 (11.5%) 70 (22.1%)
  Being on antiretroviral therapyb 54 (54.5%)c 21 (72.4%)c 33 (47.1%)c
  1. IDUs: injection drug users.
  2. a Denotes activities during the 6 months prior to the interview.
  3. b Denotes activities at the time of interview.
  4. c The number of HIV-infected individuals is used as a denominator.