Table 1.
Background Characteristics of Participants
| Total N=502 | |
|---|---|
| Characteristics | N (%) |
| Age (years) | |
| 2–14 | 3 (0.6) |
| 15–29 | 226 (45.0) |
| 30–44 | 254 (50.6) |
| 45–59 | 17 (3.4) |
| ≥60 | 2 (0.4) |
| Gender | |
| Male | 394 (78.5) |
| Female | 108 (21.5) |
| Ethnic | |
| Han ethnic | 21 (4.2) |
| Bai minority ethnic | 59 (11.8) |
| Yi minority ethnic | 420 (83.7) |
| Unknown | 2 (0.4) |
| Route of transmission | |
| Heterosexual | 4 (0.8) |
| IDU | 489 (97.4) |
| Mother to children | 1 (0.2) |
| Unknown | 8 (1.6) |
| CD4+ count (cells/μl) | |
| ≤200 | 44 (8.8) |
| 201–350 | 112 (22.3) |
| 351–500 | 158 (31.5) |
| ≥501 | 188 (37.5) |
IDU, intravenous drug use.