Table 4. Frequency of complications from foreign body ingestion.
| Injury grade | n |
|---|---|
| Grade 1 | 5 |
| Grade 2a | 9 |
| Grade 2b | 1 |
| Grade 3a | 2 |
| Perianal ulceration | 1 |
| Pulmonary atelectasis | 1 |
| Mediastinitis | 1 |
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