White blood cell, neutrophil count and percentage, lymphocyte count and percentage, immature granulocyte count and percentage, direct bilirubin, C-reactive protein, and procalcitonin values were found to be significantly higher in the complicated appendicitis group than in the uncomplicated group (p-values; 0.001, <0.001, <0.001, <0.001, 0.001, <0.001, <0.001, <0.001, <0.001, 0.016, <0.001, and 0.001, respectively). The gene discussed is CRP; the disease is appendicitis.