Prevalence of different STI in Tunisian FSW
| Total | New FSW (<5 years) | Old FSW (≥5 years) | OR (95% CI) | p Value | |
| N=188 (%) | N=63 (%) | N=125 (%) | |||
| Any STI marker detected | 186 (98.9) | 63 (100) | 123 (98.4) | – | 0.31 |
| Any current STI | 163 (86.7) | 58 (92.1) | 105 (84) | 0.45 (0.16 to 1.26) | 0.12 |
| One STI detected | 70 (37.2) | 22 (34.9) | 48 (38.4) | 1.16 (0.61 to 2.18) | 0.64 |
| Two or more STI detected | 93 (49.5) | 36 (57.1) | 57 (45.6) | 0.62 (0.34 to 1.15) | 0.13 |
| N gonorrhoeae | 21 (11.2) | 11 (17.5) | 10 (8) | 2.43 (0.89 to 6.67) | 0.05 |
| C trachomatis | |||||
| C trachomatis-positive PCR | 137 (72.9) | 48 (76.2) | 89 (71.2) | 0.77 (0.38 to 1.55) | 0.46 |
| C trachomatis-positive serology | 157/183 (85.8) | 51/63 (81) | 106/120 (88.3) | 1.7 (0.76 to 3.87) | 0.17 |
| C trachomatis-positive serology with high titres (≥128) | 103/183 (56.3) | 28/63 (44.4) | 75/120 (62.5) | 2.08 (1.21 to 3.87) | 0.02 |
| Syphilis | 5/183 (2.7) | 0 | 5/120 (4.2) | 0.64 (0.58 to 0.72) | 0.1 |
| HCV | 2/183 (1.1) | 1/63 (0.8) | 1/120 (1.6) | 1.91 (0.11 to 31.21) | 0.64 |
| Hepatitis B | |||||
| Hbs antigen | 1/183 (0.5) | 0 | 1/120 (0.8) | 0.65 (0.58 to 0.72) | 0.46 |
| Hepatitis B core IgG | 59/183 (31.4) | 7/63 (11.3) | 52/120 (43.3) | 6 (2.52 to 14.27) | <0.001 |
| HSV-2 | |||||
| HSV-2 serology | 105/183 (55.5) | 30/63 (47.6) | 71/120 (59.7) | 1.62 (0.37 to 3.01) | 0.12 |
| HSV-2 PCR | 2 (1.1) | 2 (3.2) | 0 | – | 0.11 |
| HPV | 83 (44.1) | 32 (50.8) | 51 (40.8) | 0.16 (0.36 to 1.22) | 0.19 |
| HIV | 0 (0) | 0 | 0 | – | – |
FSW, female sex worker; HPV, human papillomavirus; HSV-2, herpes simplex virus type 2; STI, sexually transmitted infection.