摘要:目的:探讨淋巴细胞和单核细胞比值(Lymphocyte to monocyte ratio,LMR)与中性粒细胞和淋巴细胞比值(Neutrophil to lymphocyte ratio,NLR)对儿童过敏性紫癜(Henoch-Schonlein purpura,HSP)肾损伤的诊断价值.方法:收集HSP患儿195例,并按有无肾损伤分组,以同时期同年龄段健康患儿120例为对照组,检测入院时血常规中性粒细胞计数(NEU)、淋巴细胞计数(LYM)、单核细胞计数(MON),并计算LMR、NLR的值,通过ROC曲线分析LMR和NLR对HSP患儿肾损伤的诊断价值.结果:①HSP组NEU、NLR高于对照组,LYM、LMR低于对照组,差异均有统计学意义(P〈0.05),MON两组间差异无统计学意义(P〉0.05).②肾损伤组患儿NEU、MON、NLR均高于非肾损组,LMR低于非肾损伤组,差异均有统计学意义(P〈0.05),LYM两组间比较,差异无统计学意义(P〉0.05).ROC曲线分析结果表明,LMR曲线下面积(AUC)为0.701,当Cutoff值=4.925时,敏感度为63.6%,特异度为80%;NLR的AUC为0.653,当Cutoff值=2.237时,敏感性为69.1%,特异度为60.0%;MON的AUC=0.63,当Cutoff值=0.595,其特异度为70.0%,敏感度为58.8%;NEU的AUC=0.617,当Cutoff值=7.365,其敏感度为77.60%,特异度为43.3%.结论:LMR、NLR对HSP肾损伤的临床诊断均有-定价值,两者较NEU、MON单个指标诊断价值更高.
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