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Etiology of attacks in 74 patients with AP
| Etiology of attacks | Number of patients (%) | IAH group No. (%) | Normal IAP group No. (%) |
| Gallstones | 46 (62.16) | 26(59.09) | 20 (66.67) |
| Hyperlipidemia | 11 (14.86) | 7 (15.91) | 4 (13.33) |
| Alcohol | 8 (10.81) | 5 (11.36) | 3 (10.00) |
| Idiopathic | 9 (12.16) | 6 (13.64) | 3 (10.00) |
| Total | 74 | 44 | 30 |
