Sex, nationality, (migratory) right iliac fossa pain, nausea and vomiting, right iliac fossa tenderness, Rovsing's sign, leukocytosis, shift to the left of neutrophil, and CRP concentration were shown to differ significantly (P < 0.05) between the positive and negative pathology results. The gene discussed is CRP; the disease is Increased total leukocyte count.