Mean CRP serum concentrations at hospital admission were reported in 15 studies, with a difference of 41.39 mg/L between the means that is greater in patients who developed delirium than in those who did not (10, 13, 17, 19, 20, 23, 25, 35, 38, 41, 49, 50, 55, 57, 65). The gene discussed is CRP; the disease is delirium.