Table 1.
Baseline demographic and behavioural characteristics of 556 FSWs a in Shanghai, 2009
| Intervention, n (%) | Control, n (%) | ||
|---|---|---|---|
| (n = 278) | (n = 278) | ||
| Age (years) | Mean (IQR) | 27.8 (22–33) | 27.7 (21–33) |
| 16-19 | 24 (8.6) | 25 (9.0) | |
| 20-24 | 78 (28.1) | 98 (35.3) | |
| 25-29 | 80 (28.8) | 43 (15.5) | |
| 30-34 | 45 (16.2) | 59 (21.2) | |
| 35-39 | 32 (11.5) | 33 (11.9) | |
| 40+ | 19 (6.8) | 20 (7.2) | |
| Ethnicity | Han | 265 (95.3) | 266 (96.7) |
| Other | 13 (4.7) | 9 (3.3) | |
| Education (years) | Mean (IQR) | 8.0 (6–9) | 8.2 (6–9) |
| None | 5 (1.8) | 6 (2.2) | |
| Elementary | 65 (23.4) | 71 (25.5) | |
| Junior high | 157 (56.5) | 145 (52.2) | |
| High school | 48 (17.3) | 51 (18.3) | |
| College or above | 3 (1.1) | 5 (1.8) | |
| Marital status | Single, never married | 66 (23.9) | 80 (28.8) |
| Cohabiting | 42 (15.2) | 45 (16.2) | |
| Married/remarried | 138 (50.0) | 123 (44.2) | |
| Separated/divorced/widowed | 30 (10.9) | 30 (10.8) | |
| Annual income (USDb) | Mean (IQR) | 7280 (4800–8640) | 7600 (4800–8640) |
| $0 - $3839 | 65 (23.6) | 62 (22.9) | |
| $3840 - $5759 | 75 (27.3) | 88 (32.5) | |
| $5760 - $7679 | 46 (16.7) | 41 (15.1) | |
| $7680 - $9599 | 37 (13.5) | 17 (6.3) | |
| $9600 - $19199 | 36 (13.1) | 41 (15.1) | |
| $19200 or more | 16 (5.8) | 22 (8.1) | |
| Length in Shanghai (months) | Mean (IQR) | 34.6 (7–56) | 38.0 (10–55) |
| Duration of sex work (months) | Mean (IQR) | 20.9 (6–24) | 16.6 (6–24) |
| Number of clients per week | Mean (IQR) | 9.3 (3–14) | 7.3 (3–9) |
| Venue typec | KTV/night club/spa | 83 (29.9) | 59 (21.2) |
| Barbershop | 116 (41.7) | 102 (36.7) | |
| Foot massage | 66 (23.7) | 101 (36.3) | |
| Otherd | 13 (4.7) | 16 (5.8) |
aRandomly selected 57 participants who were lost to follow-up in the intervention arm were added to equalize the sample sizes in the two arms.
b1 USD = ~6.25 Chinese yuan.
cp =0.0056.
dIncludes beauty salon, bath house, and other small venues.