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实时荧光定量PCR对艰难梭菌感染诊断价值的meta分析 被引量:2

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摘要 目的系统评价实时荧光定量PCR(real-time PCR)对艰难梭菌感染的诊断价值。方法制定原始文献的纳入、排除标准及检索策略,检索有关real-time PCR诊断粪便中艰难梭菌感染且同时采用细胞培养毒素中和试验(CCCNA)或厌氧产毒培养(TC)作为诊断金标准的文献,采用诊断准确性研究的质量评价工具QUADAS进行质量评价,并用Meta DiSc 1.4软件进行meta分析。结果纳入研究文献共42篇,异质性检验提示无阈值效应,但存在其他原因导致的非阈值性异质性。real-time PCR诊断粪便艰难梭菌感染的合并敏感性、特异性、阳性似然比、阴性似然比及诊断优势比(95%CI)分别为0.925(0.913,0.936)、0.965(0.962,0.969)、28.385(23.394,34.441)、0.093(0.076,0.115)和378.15(282.17,506.77)。ROC曲线下面积(AUCSROC)和Q*指数分别为0.987 8和0.953 2,漏斗图显示无发表偏倚,meta回归结果显示各个影响因素中以发表年份和样本含量为主要异质性来源,对发表年份和样本含量进行亚组分析,发现2010年之后的诊断效能大于2010年之前,样本量大于200的诊断效能大于样本量小于200者。结论通过对real-time PCR对艰难梭菌感染的诊断价值进行meta分析,发现realtime PCR具有较高的敏感性、特异性、阳性似然比及阴性似然比。因其快速准确,可广泛应用于临床。
作者 陈伟 刘文恩
出处 《临床检验杂志》 CAS CSCD 北大核心 2014年第5期390-394,共5页 Chinese Journal of Clinical Laboratory Science
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共引文献10

同被引文献15

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