Table 1.
Comparison of sexually transmitted infections prevalence between female sex workers and general female population in China
| Type of infection | No. of studies (No. of data points) | Total No of infection/Sample size | Pooled prevalence among FSW (95 % CI) | Background prevalence among general population (95 % CI) | Odds ratio (95 % CI) |
|---|---|---|---|---|---|
| HBV | 18 (24) | 848/7,614 | 10.71 (7.30–15.48) | 6.40 (4.45–9.08)* [26] | 1.75 (1.60–1.92) |
| HCV | 97 (149) | 1,366/114,722 | 0.96 (0.73–1.25) | 0.12 (0.05–0.27)* [20] | 7.99 (3.58–17.83) |
| Syphilis | 215 (377) | 13,507/245,455 | 5.24 (4.83–5.69) | 0.37 (0.20–0.65)* [21] | 14.89 (10.86–20.40) |
| HSV-2 | 38 (57) | 9,529/30,345 | 15.77 (11.74–20.85) | 5.80 (3.82–7.78)* [22] | 3.05 (2.12–4.39) |
| Trichomonas vaginitis | 43 (65) | 2,271/24,381 | 2.12 (1.46–24.21) | 2.52 (1.92–3.31)** [22] | 0.83 (0.51–1.35) |
| Chlamydia | 96 (125) | 7,983/56,548 | 13.66 (12.11–15.37) | 2.60 (1.60–4.10)** [23] | 5.95 (4.42–8.01) |
| Cervix | 41 (78) | 5,503/33,231 | 13.56 (11.65–15.73) | -- | -- |
| Vaginal | 3 (4) | 402/872 | 36.80 (19.56–58.23) | -- | -- |
| PCR | 48 (74) | 5,839/31,695 | 15.48(13.70–17.45) | -- | -- |
| Rapid test | 16 (19) | 2,144/24,853 | 10.28(8.20–12.83) | -- | -- |
| Gonorrhea | 116 (149) | 3,723/62,430 | 6.07 (5.29–6.95) | 0.16 (0.06–0.39)** [23] | 40.32 (12.99–125.18) |
| Cervix | 51 (74) | 2,523/33,493 | 6.88 (5.68–8.31) | -- | -- |
| Vaginal | 7 (9) | 311/1,806 | 12.69 (7.52–20.60) | -- | -- |
| PCR | 28 (55) | 2,015/23,179 | 8.33(6.83–10.13) | -- | -- |
| Culture | 52 (64) | 1,417/28,143 | 5.62(4.51–6.97) | -- | -- |
| Wart | 68 (76) | 1,111/39,862 | 3.27 (2.53–4.21) | 0.06 (0.01–0.07)** [20] | 52.96 (26.42–106.15) |
| HPV (any) | 4 (4) | 531/1,631 | 27.04 (10.07–55.09) | 16.80 (16.50–17.10)** [24] | 1.84 (1.64–2.06) |
| Gene type 16 | 3 (3) | 142/1,143 | 14.08 (4.13–38.40) | 3.62 (0.82–14.62)* [61, 62] | 4.39 (3.20–6.03) |
| Gene type 52 | 3 (3) | 150/1,143 | 12.53 (6.36–23.30) | 2.62 (1.75–3.48)* [61, 62] | 5.32 (3.72–7.63) |
| Gene type 58 | 2 (2) | 115/1,098 | 12.12 (2.65–41.11) | 1.59 (1.07–2.36)* [61, 62] | 8.60 (5.53–13.38) |
| Gene type 33 | 3 (3) | 75/1,143 | 8.25 (2.61–23.19) | 1.04 (0.63–1.72)* [61, 62] | 8.48 (4.96–14.48) |
| Gene type 31 | 2 (2) | 59/1,098 | 5.05 (3.84–42.25) | 2.09 (1.44–3.02)* [61, 62] | 2.46 (1.58–3.82) |
| Multiple type | 2 (2) | 216/1,098 | 23.57 (6.08–59.47) | -- | -- |
| Single type | 2 (2) | 328/1,098 | 29.9(27.3–32.7) | -- | -- |
* refers to p < 0.05
** refers to p < 0.01