[Effects of Preoperative Immune and Nutritional Indices on the Prognosis of pStage Ⅱ and Ⅲ Colorectal Cancer]

We examined the relationship between immune and nutritional indices and the outcome of colorectal cancer patients at our hospital. We retrospectively analyzed 196 patients with pStage Ⅱand Ⅲcolorectal cancer who underwent curative surgery in our institution between 2007 and 2013. The evaluation items were immune and nutritional indices, such as neutrophil/lym- phocyte ratio(NLR), platelet/lymphocyte ratio(PLR), lymphocyte/monocyte ratio(LMR), and the Onodera nutritional index (PNI). Moreover, we analyzed the relationship between immune and nutritional indices and outcome, overall survival(OS), and recurrence-free survival(RFS). Univariate and multivariate analyses showed that low LMR was significantly related to high mortality. Univariate analysis showed that high NLR, low LMR, and low PNIwere significantly related to a decrease in OS. Multivariate analysis showed that PNIwas an independent predictor of OS. LMR is suggested as a new predictor for postoperative complications. PNIis suggested as a new prognostic factor in pStageⅡand Ⅲcolorectal cancer.