Health behaviour, STI history, and current STI
| Variable | % (n) | Male | Female | MTF | Other | p Value‡ |
|---|---|---|---|---|---|---|
| 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. | ||||||
| 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 |