PRs and 95% CIs for commercial sex characteristics comparing low-fee and medium-fee FSW in three provinces in China, 2012
| Total (N=1487) | Low-fee FSW (N=417) | Medium-fee FSW (N=1070) | PR (95% CI) | p Value* | APR (95% CI) | p Valve | |
|---|---|---|---|---|---|---|---|
| No. (%) | No. (%) | No. (%) | |||||
| Age at first commercial sex (years) | |||||||
| 14–19 | 324 (21.9) | 63 (15.3) | 261 (24.4) | 1.0 (Ref) | |||
| 20–21 | 338 (22.8) | 78 (18.9) | 260 (24.3) | 1.2 (0.9 to 1.6) | |||
| 22–24 | 378 (25.5) | 119 (28.9) | 259 (24.2) | 1.6 (1.2 to 2.1) | |||
| 25–29 | 266 (18.0) | 74 (18.0) | 192 (18.0) | 1.4 (1.1 to 1.9) | |||
| 30–51 | 174 (11.8) | 78 (18.9) | 96 (9.0) | 2.3 (1.7 to 3.0) | <0.001 | ||
| Duration of time in commercial sex (months) | |||||||
| <12 | 266 (18.0) | 28 (6.7) | 238 (22.4) | 1.0 (Ref) | |||
| 12–23 | 407 (27.5) | 94 (22.5) | 313 (29.4) | 2.2 (1.5 to 3.2) | |||
| 24–47 | 503 (34.0) | 162 (38.8) | 341 (32.1) | 3.1 (2.1 to 4.4) | |||
| ≥48 | 304 (20.5) | 133 (31.9) | 171 (16.1) | 4.2 (2.9 to 6.0) | <0.001 | ||
| Last working location | |||||||
| This city | 395 (27.8) | 91 (23.1) | 304 (29.5) | 1.0 (Ref) | |||
| Other city in this province | 326 (26.4) | 126 (32.0) | 250 (24.3) | 1.6 (1.3 to 2.0) | 1.1 (1.01 to 1.2) | 0.022 | |
| Other province | 305 (21.4) | 114 (29.0) | 191 (18.6) | 1.5 (1.2 to 1.8) | 1.1 (0.9 to 1.3) | 0.062 | |
| First time in this business | 347 (24.4) | 63 (16.0) | 284 (27.6) | 0.8 (0.6 to 1.1) | <0.001 | 1.0 (0.9 to 1.2) | 0.629 |
| Days per week in sex work | |||||||
| 1–4 | 241 (16.2) | 31 (7.4) | 210 (19.6) | 1.0 (Ref) | |||
| 5 | 581 (39.1) | 93 (22.3) | 488 (45.6) | 1.2 (0.9 to 1.8) | 1.2 (0.8 to 1.8) | 0.415 | |
| 6–7 | 665 (44.7) | 293 (70.3) | 372 (34.8) | 3.4 (2.4 to 4.8) | <0.001 | 1.7 (1.2 to 2.6) | 0.008 |
| Clients per day | |||||||
| 1 | 314 (21.1) | 31 (7.4) | 283 (26.5) | 1.0 (Ref) | |||
| 2 | 555 (37.3) | 156 (37.4) | 399 (37.3) | 2.8 (2.0 to 4.1) | 2.1 (1.4 to 3.1) | <0.001 | |
| ≥3 | 618 (41.6) | 230 (55.2) | 388 (36.3) | 3.8 (2.7 to 5.3) | <0.001 | 2.2 (1.5 to 3.3) | <0.001 |
| Had regular clients in the past year | |||||||
| No | 689 (47.8) | 144 (36.0) | 578 (52.3) | 1.0 (Ref) | |||
| Yes | 753 (52.2) | 256 (64.0) | 625 (47.7) | 1.6 (1.4 to 1.9) | <0.001 | ||
*χ2 test.
FSW, female sex workers; PR, prevalence ratio.