Table 2 Health behaviour, STI history, and current STI.
| Variable | % (n) | Male | Female | MTF | Other | p Value‡ |
|---|---|---|---|---|---|---|
| Illicit drug use ever (n = 756) | 61.2 (463) | 71.3 (129) | 55.2 (224) | 64.5 (78) | 66.7 (32) | <0.01 |
| History of IDU (n = 756) | 22.9 (173) | 27.6 (50) | 16.3 (66) | 33.9 (41) | 33.3 (16) | <0.001 |
| Current use | ||||||
| Tobacco (n = 756) | 46.0 (348) | 48.6 (88) | 41.4 (168) | 57.0 (69) | 47.9 (23) | <0.05 |
| Any illicit drug (n = 755) | 39.6 (299) | 53.3 (96) | 35.7 (145) | 29.8 (36) | 45.8 (22) | <0.001 |
| Methamphetamines (n = 755) | 19.5 (147) | 29.8 (54) | 13.3 (54) | 24.8 (30) | 18.8 (9) | <0.001 |
| Heroin (n = 755) | 9.0 (68) | 8.3 (15) | 8.9 (36) | 8.3 (10) | 14.6 (7) | 0.57 |
| Cocaine/crack (n = 755) | 20.4 (154) | 27.1 (49) | 18.0 (73) | 17.4 (21) | 22.9 (11) | 0.06 |
| Current injection drug use (n = 756) | 7.9 (60) | 11.0 (20) | 5.9 (24) | 9.1 (11) | 10.4 (5) | 0.15 |
| Self reported infections* (n = 543) | ||||||
| Genital herpes | 9.6 (52) | 8.7 (11) | 12.3 (34) | 3.0 (3) | 10.3 (4) | <0.05 |
| Gonorrhoea | 14.4 (78) | 23.6 (30) | 10.1 (28) | 15.8 (16) | 10.3 (4) | <0.01 |
| Chlamydia | 13.4 (73) | 12.6 (16) | 17.4 (48) | 1.0 (1) | 20.5 (8) | <0.001 |
| Genital warts | 11.6 (63) | 7.9 (10) | 15.6 (43) | 6.9 (7) | 7.7 (3) | <0.05 |
| Syphilis | 5.0 (27) | 7.9 (10) | 1.8 (5) | 10.9 (11) | 2.6 (1) | 0.001 |
| HIV (n = 495) | 8.7 (43) | 16.0 (19) | 1.2 (3) | 20.0 (19) | 5.3 (2) | <0.001 |
| Any STI† (n = 456) | 105 (23) | 31.9 (36) | 17.9 (45) | 25.0 (18) | 30.0 (6) | <0.05 |
| Gonorrhoea† | ||||||
| Pharyngeal (n = 199) | 6.0 (12) | 8.8 (5) | 1.1 (1) | 10.3 (4) | 18.2 (2) | 0.01 |
| Rectal (n = 120) | 4.2 (5) | 7.3 (3) | 0 | 5.3 (2) | 0 | 0.50 |
| Urine (n = 421) | 1.9 (8) | 5.7 (6) | 0.4 (1) | 1.6 (1) | 0 | 0.01 |
| Chlamydia† | ||||||
| Pharyngeal (n = 171) | 0.6 (1) | 2.3 (1) | 0 | 0 | 0 | 0.50 |
| Rectal (n = 97) | 5.2 (5) | 3.4 (1) | 3.4 (1) | 8.8 (3) | 0 | 0.71 |
| Urine (n = 428) | 1.9 (8) | 3.7 (4) | 1.7 (4) | 0 | 0 | 0.43 |
| HSV‐2† (n = 230) | 34.8 (80) | 41.4 (24) | 30.4 (38) | 34.3 (12) | 50 (6) | 0.33 |
| Syphilis† (n = 387) | 1.8 (7) | 2.1 (2) | 0.9 (2) | 3.3 (2) | 5.3 (1) | 0.15 |
MTF, male to female; IDU, injecting drug use.
*These data were ascertained on the modified questionnaire only.
†Prevalence of any STI, gonorrhoea, chlamydia, HSV‐2, and syphilis was calculated as the proportion of individuals with any positive STI result among all individuals tested for each particular STI. Overall, 456 individual sex workers (58.2%) were tested for one or more STI.
‡We performed a Fisher exact test if fewer than five outcomes in any category, otherwise we used a χ2 test.