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Table 1 Sociodemographic characteristics

From: Risky injection practices and HCV awareness in Chiang Mai Province, Thailand: a respondent-driven sampling study of people who inject drugs

Sociodemographic characteristics (N = 164) N (%) Population estimates in % [95% CI]
Sex (female) 20 (12.2) 12.3 [6.5–18.0]
Age (years)
  < 25 32 (19.5) 16.5 [8.0–25.1]
 25–34 59 (36.0) 35.4 [25.6–45.2]
 35–44 46 (28.1) 28.1 [19.3–36.8]
  ≥ 45 27 (16.5) 20.0 [10.2–29.8]
Ethnic group
 Thai 83 (50.6) 46.1 [32.9–59.2]
 Lahu 42 (25.6) 34.7 [21.2–48.4]
 Othera 39 (23.8) 19.2 [10.9–27.4]
Nationality (Thai) 138 (84.2) 83.1 [75.4–90.9]
Family situation
 In a relationship/married 79 (48.2) 52.8 [42.6–63.0]
 Has dependents (children or relatives) 99 (60.4) 61.0 [51.5–70.5]
Education (high school or higher) 70 (42.7) 36.9 [25.8–48.0]
Activity
 Employed 31 (18.9) 19.1 [11.4–26.8]
 Independent worker 9 (5.5) 6.0 [1.0–11.1]
 Informal work/daily work 108 (65.9) 64.1 [52.3–76.0]
 No activity/student 16 (9.8) 10.7 [0.0–22.1]
Weekly income in THBb
  < 1000 16 (9.8) 12.7 [6.2–19.3]
 1000–2500 90 (54.9) 57.3 [48.7–66.0]
 2500–4000 43 (26.2) 23.6 [16.0–31.1]
  ≥ 4000 15 (9.2) 6.3 [2.5–10.2]
Ever been arrested for drug use 114 (70.0) 68.1 [59.0–77.3]
Ever been in prison 99 (60.4) 56.8 [46.7–67.2]
  1. aAkha, Lisu, Tai Yai, Burmese, and Karens
  2. bUSD 1.00 = THB 31.20 (Thai baht), conversion rate at the time of the study