CRP and appendicitis: No significant differences were detected in white blood cell (WBC) count, C-reactive protein (CRP) level, or the polymorphonuclear leukocyte ratio (p=0.48, 0.22, 0.12, and 0.08, respectively) between patients with and without appendicitis, except that the WBC count in the 18–45 years age group was significantly higher in patients with than without appendicitis (14,950 ± 19,751 vs. 12,800 ± 3,248 μl/ml, p=0.001).