Table 3.
Multivariate analysis of commercial sex with old male clients among low-tier FSWs
| Variable | Adjusted OR (95% CI) | P value |
| Education | ||
| Primary school and below | 1 | |
| Junior high school | 0.78 (0.63 to 0.95) | 0.015 |
| High school and above | 0.61 (0.44 to 0.86) | 0.005 |
| Location of sampling | ||
| Street | 1 | |
| Hair salon | 1.07 (0.81 to 1.41) | 0.635 |
| Roadside shop | 1.49 (1.03 to 2.15) | 0.034 |
| Other | 0.53 (0.35 to 0.80) | 0.003 |
| Duration of practising commercial sex | ||
| 1–12 months | 1 | |
| 13–24 months | 1.33 (1.02 to 1.74) | 0.036 |
| >24 months | 2.22 (1.79 to 2.76) | 0.000 |
| No of clients during the previous month | ||
| <16 | 1 | |
| 16–30 | 1.99 (1.59 to 2.50) | 0.000 |
| >30 | 2.14 (1.69 to 2.70) | 0.000 |
| Average fee per sex act during the previous month (¥) | ||
| ≤50 | 1 | |
| 51–100 | 0.58 (0.44 to 0.76) | 0.000 |
| >100 | 0.33 (0.25 to 0.45) | 0.000 |
| Anal sex during the previous month | ||
| No | 1 | |
| Yes | 3.02 (1.88 to 4.87) | 0.000 |
| Oral sex during the previous month | ||
| No | 1 | |
| Yes | 2.64 (2.08 to 3.35) | 0.000 |
| Young client during the previous month | ||
| No | 1 | |
| Yes | 0.72 (0.59 to 0.89) | 0.002 |
| Currently using contraception | ||
| No | 1 | |
| Yes | 1.95 (1.58 to 2.39) | 0.000 |
| STI symptoms during the 6 previous 6 months | ||
| No | 1 | |
| Yes | 1.36 (1.01 to 1.82) | 0.043 |
| Seen a doctor during the previous 6 months | ||
| No | 1 | |
| Yes | 0.61 (0.49 to 0.76) | 0.000 |
| Exposure to HIV prevention service during the previous 6 months | ||
| No | 1 | |
| Yes | 2.00 (1.51 to 2.64) | 0.000 |
FSWs, female sex workers; STI, sexually transmitted infection.