Table 1 Personal characteristics of the study participants (n = 1325)
| Â | Number | Percent |
|---|---|---|
Socio-demographic variables | ||
 Age group | ||
  ≤21 | 429 | 32.4 |
  21–23 | 432 | 32.6 |
  > 23 | 464 | 35.0 |
 Number of years of formal education | ||
  Primary education (≤9 years) | 400 | 30.2 |
  Secondary education (10–12 years) | 841 | 63.5 |
  Tertiary eduation (>12 years) | 84 | 6.3 |
 Monthly income (Yuan) | ||
  Low (≤3200) | 443 | 33.4 |
  Medium (3201–4800) | 828 | 62.5 |
  High (>4800) | 54 | 4.1 |
Behavior-related variables | ||
 Smoked tobacco in the past 30 days | ||
  Yes | 98 | 7.4 |
  No | 1227 | 92.6 |
 Having received services related to AIDS prevention in the previous 6 months | ||
  Yes | 198 | 14.9 |
  No | 1127 | 85.1 |
 Engaged in condomless sex in the previous 6 months | ||
  Yes | 885 | 66.8 |
  No | 440 | 33.2 |