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Possible causes and associations of EC to other diseases
| Causes/associations | N |
|---|---|
| History of—or family history of asthma/allergy/atopy, family history and/or positive skintest2 4 10 11 13 18 20 22 25 31 35 | 15 (27%) |
| Bacterial infection4 11 13 16 18 20 32 | 9 (16%) |
| Medically induced2 4 13 15 25 31 | 7 (13%) |
EC, eosinophilic cystitis
