| Age group | ≤10° | > 10° | ||||
|---|---|---|---|---|---|---|
| Male (Normal canals) | Female (Normal canals) | Patients (Cystic canals) | Male (Normal canals) | Female (Normal canals) | Patients (Cystic canals) | |
| 20s | 10 | 11 | 2 | 22 | 22 | 6 |
| 30s | 7 | 9 | 1 | 18 | 14 | 3 |
| 40s | 5 | 3 | 1 | 11 | 8 | 1 |
| 50s | 3 | 3 | 3 | 8 | 6 | 5 |
| 60s | 4 | 3 | 4 | 7 | 6 | 4 |
| 70s | 3 | 3 | 4 | 8 | 6 | 2 |
| 80s | 4 | 4 | 2 | 8 | 4 | 2 |
| Total | 36 | 36 | 17 | 82 | 66 | 23 |