Characteristics of the study group and the number of cases diagnosed
| Period of study | January 1995–December 1999 |
| Total of patients | 558 women |
| Median age | 23.5 years |
| Factor of risk | Street walking prostitution |
| Origin (35 countries) | |
| Europe (east) | 424 |
| Africa | 103 |
| America (central and south) | 29 |
| Asia | 2 |
| STD diagnosed | |
| Cervicitis, vaginitis, vaginosis | 390 |
| Latent syphilis | 65 |
| Chlamydial infection | 35 |
| Venereal warts | 24 |
| Herpes | 11 |
| Trichomonas infection | 10 |
| Pox virus infection | 5 |
| Gonococcal cervicitis | 5 |
| Secondary syphilis | 2 |
| Blood samples | 558 |
| HBV | 150 |
| HCV | 28 |
| HIV | 9 |
| Pap test 558 | Class I or II |