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Preoperative variables and mortality rates of survivors and non-survivors of abdominal surgery
| Preoperative variables | Percent of mortality if factors present | Percent of mortality if factors absent |
| Child class | ||
| A | 10 | |
| B | 31 | |
| C | 76 | |
| Ascites | 58 | 11 |
| Emergency surgery | 57 | 10 |
| Bilirubin > 3 mg/dL | 62 | 17 |
| Albumin < 3 mg/dL | 58 | 12 |
| Prothrombin time > 1.5 s above control | 63 | 18 |
| White blood cell count > 10 000 | 54 | 19 |
| P < 0.01 for all variables |
