Preoperative Nutritional Scores as Host-Related Prognostic Factors for Both Overall Survival and Postoperative Complications in Stage II - III Colorectal Cancer Patients.

Background In the tumor-node-metastasis eighth edition, nutritional status and inflammatory scores are newly described as host-related prognostic factors for esophageal cancer, hepatocellular carcinoma, and pancreatic cancer. However, only age and race are listed as host-related prognostic factors for colorectal cancer. Objective To evaluate the prognostic significance of nutritional and inflammatory scores for postoperative outcomes in colorectal cancer patients. Design A retrospective study using a database which prospectively collects data. Settings A high-volume multidisciplinary tertiary cancer center in Japan. Patients Study participants were 1880 consecutive patients with stage II - III colorectal cancer who underwent curative resection at the National Cancer Center Hospital between 2004 and 2012. Two nutritional scores (prognostic nutritional index and Controlling Nutritional Status score) and four inflammatory scores (modified Glasgow Prognostic Score, neutrophil-to-lymphocyte ratio, platelet-to-lymphocyte ratio, and C-reactive protein-to-albumin ratio) were calculated. Main outcome measures Correlations of nutritional scores and inflammatory scores with overall survival and postoperative complications. Results After adjusting for key clinical and pathological factors by multivariable analysis, two nutritional scores (prognostic nutritional index and Controlling Nutritional Status score) and two inflammatory scores (neutrophil-to-lymphocyte ratio and C-reactive protein-to-albumin ratio) were independent prognostic factors for overall survival. With respect to discriminative ability, time-dependent receiver operating characteristic curves and Harrell's concordance index revealed that prognostic nutritional index and Controlling Nutritional Status score were superior to the four inflammatory scores for predicting overall survival. Multivariable logistic regression analyses also revealed that prognostic nutritional index, Controlling Nutritional Status score, and C-reactive protein-to-albumin ratio were independent predictors for postoperative complications. Limitations Retrospective design of the study. Conclusions Preoperative nutritional scores are promising host-related prognostic factors for overall survival and postoperative complications in stage II and III colorectal cancer patients. See Video Abstract at http://links.lww.com/DCR/B587.