Table 1. Human immunodeficiency virus (HIV) prevalence among the surveyed population groups.
| Population group | HIV prevalence |
|||
|---|---|---|---|---|
| Lai Chau | Kien Giang | Dong Thap | An Giang | |
| Street-based female sex workers | 1.9 (95% CIa 0.1–9.9) (54)b | 0.0 (216) | 1.5 (95% CI 0.3–4.3) (201) | 24.3 (95% CI 20.1–28.8) (400) |
| Karaoke-based female sex workers | 0.0 (49) | 1.3 (95% CI 0.5–2.9) (449) | 1.4 (95% CI 0.4–3.5) (291) | 16.5 (95% CI 12.9–20.8) (363) |
| Injecting drug users | 36.1 (95% CI 31.2–41.4) (359) | 23.5 (95% CI 19.4–28.0) (400) | 4.0 (95% CI 2.0–7.1) (274) | 13.4 (95% CI 10.1–17.4) (358) |
| Unmarried young men | 1.3 (95% CI 0.5–2.7) (480) | 0.4 (95% CI 0.1–1.6) (454) | 0.0 (481) | 0.6 (95% CI 0.1–1.9) (470) |
| Mobile groupsb | 0.0 (478) | 0.2 (95% CI 0.0–1.1) (485) | 2.5 (95% CI 1.3–4.3) (480) | 2.1 (95% CI 1.0–3.8) (480) |
a CI = confidence interval. b Figures in parentheses are the total sample size. c Mobile groups: Seafarers in Kien Giang, migrant construction workers in Lai Chau, and border traders in An Giang and Dong Thap.