| Serologicals results | Professions | P value | |
| Non exposed n = 3679 | Exposed n = 589 | ||
| HBsAg positive | 275 (7.47%) | 85 (14.43%) | <0.00001 |
| Hepatitis C Antibody positive | 53 (1.47%) | 10 (1.7%) | 0.71 |