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A Novel Scoring System in Predicting Prognosis After Adjuvant FOLFOX Chemotherapy in Gastric Cancer.

Purpose: To evaluate the impact of neutrophil-to-lymphocyte ratio (NLR) and preoperative prognostic nutritional index (PNI) on prognosis of gastric cancer (GC) after adjuvant FOLFOX chemotherapy. Materials and Methods: Data on 749 GC patients who received operation after by adjuvant FOLFOX chemotherapy between January 2013 and December 2015 were enrolled in this study, retrospectively. Receiver-operating characteristic curve analysis was employed to assess optimal cutoff thresholds for PNI and NLR. The GC subjects having a low PNI (<52.8) and high NLR (>1.79) received a score of 2. Any variable that met these standards was scored as 1. If none of the two variables met these standards of the patient was assigned a score of 0. Correlation between PNI-NLR score and GC stage was also evaluated. Results: The mean overall survival (OS) and 5-year OS rate for subjects with PNI-NLR = 2 was lower than those of subjects with PNI-NLR = 1, or 0 (40.9% vs. 52.1%, 76.4% [46.0 vs. 61.0], 68.0 months, p ≤ 0.001). In multivariate analyses, the PNI-NLR score (p ≤ 0.001) and WHO grade (p ≤ 0.001) showed potential to independently influence OS. Conclusions: High PNI-NLR scores can independently affect worse prognosis of GC. Thus, it can be utilized to differentiate low risk from high risk subjects.