| Variables | Number | Percentages (%) |
| Serologies | 249 | 81.6 |
| Positive serologies | 50 | 20.0 |
| TPHA/VDRL | 5 | 2.0 |
| Toxoplasmosis | 15 | 6.0 |
| Rubella | 3 | 1.2 |
| Hepatitis B | 12 | 4.8 |
| HIV | 15 | 6.0 |
| Hepatitis C | 0 | 0.0 |