A number of studies have reported that various immune-nutrition indices calculated from blood test results, such as controlling nutritional status7, 8, geriatric nutritional risk index9, 10, prognostic nutritional index11, Glasgow prognostic score12, C-reactive protein (CRP)/albumin ratio13, 14, neutrophil/lymphocyte ratio15, platelet/lymphocyte ratio15, and monocyte/lymphocyte ratio15, 16, are prognostic factors for postoperative prognosis in NSCLC. The gene discussed is CRP; the disease is non-small cell lung carcinoma.