摘要目的 探讨预后营养指数(prognostic nutritional index,PNI)、中性粒细胞与淋巴细胞比(neutrophil-lymphocyte ratio,NLR)和血小板与淋巴细胞比(platelet-lymphocyte ratio,PLR)与胃癌患者的预后关系.方法 回顾性分析2010年1月至2011年1月安徽医科大学第一附属医院收治的257例胃癌患者的临床病理及随访资料,通过ROC曲线分析得出分界值,采用Kaplan-Meier生存曲线和COX比例风险模型分析影响胃癌患者预后的相关因素.结果 PNI与胃癌患者的年龄、肿瘤大小、肿瘤浸润深度、TNM分期、血清白蛋白、血清前白蛋白、血红蛋白均有关(均P＜0.05);NLR与胃癌患者的肿瘤大小、浸润深度、淋巴结转移、TNM分期、血清白蛋白、血清前白蛋白、血红蛋白均有关(均P ＜0.05);PLR与胃癌患者的肿瘤大小、血清前白蛋白、血红蛋白均有关(均P＜0.05).低NLR组、低PLR组、高PNI组胃癌患者的生存时间较高NLR组、高PLR组、低PNI组长(均P＜0.05).多因素生存分析结果表明,PNI和NLR是影响胃癌患者预后的独立因素.结论 PNI和NLR与PLR相比有更好的预测预后价值,是影响胃癌患者预后的独立因素.

abstractsObjective To assess the prognostic significance of prognostic nutritional index (PNI),neutrophil lymphocyte ratio (NLR) and platelet-lymphocyte ratio in gastric cancer patients.Methods Clinico-pathological data of 257 patients with gastric cancer in the First Affiliated Hospital of Anhui Medical University between January 2010 and January 2011 was analyzed retrospectively.The ROC curve and Youden index were used to determine the cut-off value,survival curves were described by KaplanMeier method and compared by Log-rank test.The univariate and multivariate analyses were performed with the Cox proportional hazard model to identify the prognostic factors.Results PNI was positively correlated with ages,tumor size,depth of tumor invasion,TNM stages,albumin,pre-albumin and hemoglobin (all P ＜ 0.05).NLR was associated with the tumor size,the depth of invasion,lymph node metastasis,TNM stages,albumin,pre-albumin and hemoglobin (all P ＜ 0.05).PLR was associated with the tumor size,prealbumin and hemoglobin (all P ＜ 0.05).The Kaplan-Meier curves showed that gastric cancer patients had longer overall time in the low NLR group,low PLR group and high PNI group than in the high NLR group,high PLR group and low PNI group respectively (all P ＜ 0.05).The multivariate analyses showed that PNI and NLR were independent factors for predicting overall survival of gastric cancer patients.Conclusions PNI and NLR have more predictive value of overall survival than the PLR,PNI and NLR are independent prognostic factors of OS (overall survival) in gastric cancer.