CRP and appendicitis: Five independent predictors of acute appendicitis, which we identified through multivariate analysis logistic regression, were vomiting (odds ratio [OR], 6.69; 95% confidence interval [CI], 1.37–32.72; p = 0.019); RLQ pain (OR, 9.06; 95% [CI], 2.06–39.80; p = 0.004); absence of stool occult blood (OB)(OR, 0.05; 95% [CI], 0.00–0.73; p = 0.028); WBC count (OR, 1.2; 95% [CI], 1.07–1.34; p = 0.002); and CRP level (OR, 1.19; 95% [CI], 1.19–1.30; p < 0.001), as shown in Table 3.