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The area under the receiver-operating characteristic curve (AUC) and 95% confidence interval of each aetiology of duodenal perforation.
| Aetiology | Mortality (CI) |
|---|---|
| Whole group | 0.67 (0.52–0.82) |
| Ulcer perforation | 0.76 (0.57–0.95) |
| ERCP | 0.56 (0.26–0.86) |
| Surgery | 0.91 (0.71–1.0) |
| Trauma | 0 |
