| Ages (year) | Frequent foreign body type | |||
|---|---|---|---|---|
| 1st | 2nd | 3rd | n | |
| 0-4 | Plastics (29.8%) | Metal (17.6%) | Fish bone (13.7%) | 131 |
| 5-9 | Fish bone (28.6%) | Plastics (16.0%) | Metal (10.7%) | 280 |
| 10-14 | Fish bone (49.1%) | Metal (13.8%) | Plastics (10.3%) | 116 |
| 15-64 | Fish bone (59.4%) | Chicken bone (8.8%) | Metal (7.0%) | 558 |
| 65+ | Fish bone (57.0%) | Pills (8.1%) | Dental (7.0%) | 86 |
| Total | Fish bone (46.0%) | Plastics (11.7%) | Metal (11.6%) | 1,201 |