| Variables | Categories | Ajusted-OR (95% CI) | P-value |
| Antibiotherapy | No | 1 | Ref |
| Yes | 6.00 (0.92 - 38.98) | 0.06 | |
| Frequent hospitalisation | No | 1 | Ref |
| Yes | 16.53 (4.36 - 62.66) | <0.0001 |