摘要
目的:探索胃癌中性粒细胞淋巴细胞比值(neutrophil lymphocyte ratio,NLR)的分布及其对分期的诊断价值。方法:回顾性收集安徽医科大学第一附属医院胃癌根治术693例患者的资料,分析NLR的分布,比较其在不同分期的差异,分析NLR单一变量和加入逻辑(logistic)回归模型时对胃癌分期的诊断作用。结果:NLR中位数为2.193(0.589~32.025),不服从正态分布(D=0.197,P<0.01)。不同分期NLR的差异有统计学意义(P<0.01),Ⅲ期、Ⅱ+Ⅲ+Ⅳ期的NLR分别高于Ⅰ期,Ⅲ+Ⅳ期NLR高于Ⅰ+Ⅱ期。NLR单变量诊断分期的多分类曲线下面积为0.580,区分Ⅱ+Ⅲ+Ⅳ期和Ⅰ期、Ⅲ+Ⅳ期和Ⅰ+Ⅱ期的受试者工作曲线下面积(area under the receiver operating curve,AUC)分别为0.585和0.577(均P<0.05),敏感度为0.8~1.0时,部分AUC均为0.524。纳入和未纳入NLR的逻辑回归模型比较,连续净重分类改善度为0.351(95%CI:0.186~0.516,P<0.01);综合区分改善度为0.017(95%CI:0.009~0.025,P<0.01)。结论:胃癌NLR偏态分布,不同分期间存在差异,NLR对分期预测的logistic回归模型具有一定的改善作用。
Objective:To explore the distribution of neutrophil lymphocyte ratio(NLR)in gastric cancer and its diagnostic value for staging.Methods:Data of 693 patients with gastric cancer undergoing radical gastrectomy in the First Affiliated Hospital of Anhui Medical University were retrospectively collected.The distribution of NLR was analyzed to compare its differences in the different stages,and analyzed the role of single variable of NLR and logistic regression model with NLR in the diagnosis of gastric cancer stages.Results:The median of NLR was 2.193(range:0.589–32.025),which did not follow the normal distribution(D=0.197,P<0.01).The difference of NLR in different stages was statistically significant(P<0.01),NLR of stageⅢandⅡ+Ⅲ+Ⅳwas higher than that of stageⅠrespectively,NLR of stageⅢ+Ⅳwas higher than that of stageⅠ+Ⅱ.The multiclass area under the receiver operating characteristic curve(AUC)was 0.580.AUC was 0.585(P<0.05)and 0.577(P<0.05)for differentiating stageⅡ+Ⅲ+ⅣfromⅠand stageⅢ+ⅣfromⅠ+Ⅱrespectively.When the sensitivity was 0.8–1.0,partial AUC were both 0.524.Compared with the model without NLR,the models with NLR had significant improvement as assessed by the net reclassification improvement(NRI)(0.351,95%CI:0.186–0.516,P<0.01)and integrated discrimination improvement(IDI)(0.017,95%CI:0.009–0.025,P<0.01).Conclusion:The distribution of NLR in gastric cancer is skewed,and there are differences among different stages.NLR could improve logistic regression model for predicting gastric cancer stages.
作者
汪圣毅
周浩
刘虎
WANG Shengyi;ZHOU Hao;LIU Hu(Division of Gastrointestinal Surgery,Department of General Surgery,First Affiliated Hospital of Anhui Medical University,Hefei 230022;Department of Surgery,901 Hospital,Hefei 230031;Department of Oncology,West District of the First Affiliated Hospital of University of Science and Technology of China,Anhui Provincial Cancer Hospital,Hefei 230031,China)
出处
《临床与病理杂志》
CAS
2021年第10期2246-2253,共8页
Journal of Clinical and Pathological Research
基金
安徽省博士后研究人员科研经费项目(2011)。
关键词
胃癌
中性粒细胞淋巴细胞比
受试者工作曲线
净重分类改善度
综合区分改善度
gastric cancer
neutrophil lymphocyte ratio
receiver operating characteristic
net reclassification improvement
integrated discrimination improvement
