| Age in years | Recurrent resp. pappiloma (RRP) | Foreign bodies | Acute infections | Trauma | Vocal cord nodules | Total | Percentage % |
| 0 - 3 | 3 | 8 | 5 | 1 | 2 | 19 | 36.5% |
| 4 - 7 | 11 | 5 | 2 | 2 | - | 20 | 38.5% |
| 8 - 11 | 7 | 2 | 2 | - | - | 11 | 21.2% |
| 12 - 15 | 2 | - | - | - | - | 2 | 3.8% |
| Total | 23 | 15 | 9 | 3 | 2 | 52 | 100% |