Table 2. Predictors and multivariable logistic regression model predicting N-GIP (model with significant terms only).
| Predictors | Multivariable logistic regression | ||
|---|---|---|---|
| OR | P value | 95% CI | |
| Duration of abdominal pain >19.6 h | 3.39 | 0.024 | 1.17–9.80 |
| Sign of peritonitis (versus generalized peritonitis) | <0.001 | ||
| Localized peritonitis | 4.9 | 0.009 | 1.49–16.09 |
| No peritonitis | 92.17 | <0.001 | 27.51–308.81 |
| NLR <3.80 | 2.9 | 0.019 | 1.19–7.10 |
N-GIP, negative surgical exploration in suspected gastrointestinal perforation; NLR, neutrophil-to-lymphocyte ratio.