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Etiological characteristics of fistulas
| Congenital | Obstetric injury | Iatrogenic | Sepsis | Trauma | Total | |
|---|---|---|---|---|---|---|
| Location of fistula | ||||||
| - ≤2 cm | 12 | 13 | 8 | 6 | 2 | 41 |
| - >2 cm | 5 | 5 | 10 | 2 | 0 | 22 |
| Diameter of fistula | ||||||
| - <1.0 cm | 6 | 11 | 11 | 7 | 1 | 36 |
| - 1.0–2.0 cm | 6 | 3 | 5 | 1 | 1 | 16 |
| - >2.0 cm | 5 | 4 | 2 | 0 | 0 | 11 |
| History of previous repair | ||||||
| - No | 5 | 9 | 8 | 6 | 1 | 29 |
| - Yes | 12 | 9 | 10 | 2 | 1 | 34 |
