| Logistic regression model | ||
---|---|---|---|
p-valuea | OR | (95% CI) | |
Sudden onset of abdominal pain |  < 0.001 | 20.2 | (6.9–59.6) |
Morphine-requiring abdominal pain | 0.002 | 5.5 | (1.9–15.9) |
Guarding | 0.63 | – | – |
Organ dysfunction (total SOFA score > 2) | 0.24 | – | – |
White blood cell count, G/L | 0.11 | – | – |