Variable | Odds ratio | 95 % Confidence interval | |
---|---|---|---|
Gender | |||
Female | 1 | - | - |
Male | 1.025 | 0.743–1.414 | |
Age group (years) | |||
13–18 | 1 | - | - |
7–12** | 1.662 | 1.146–2.410 | |
≤ 6** | 2.071 | 1.344–3.193 | |
Drainage | |||
Yes | 1 | - | - |
No* | 2.249 | 1.187–4.260 | |
Recurrence | |||
No | 1 | - | - |
Yes*** | 3.231 | 1.950–5.354 |