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时间:2017-12-07
《两种测量方法定量测量结果的一致性评价 bland--altman》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、维普资讯http://www.cqvip.com现代预防医学2007年第34卷第l7期ModernPreventiveMedicine,2007,Vo1.34,NO.17·3263·文章编号:1003—8507(2007)17—3263—05中图分类号:R195.1文献标识码:A【论著】两种测量方法定量测量结果的一致性评价李镒冲.李晓松摘要:【目的]比较两种测量方法定量测量结果的一致性评价方法的优劣。[方法]应用配对t检验、简单相关分析、组内相关系数以及Bland—Ahman法对某一致性较好的实例以及其衍生出的系统误差较大、随机误差较大以及测量范围局限3
2、种情况进行一致性评价。[结果]对实例一致性评价中,简单相关分析、组内相关系数与Bland—Ahman法显示一致性较好,配对t检验显示一致性较差;系统误差较大情况下,简单相关分析显示较好一致性,而配对l检验、组内相关系数与Bland=Alanan法显示一致性较差;随机误差较大情况下,配对t检验显示一致性较好,而简单相关分析、组内相关系数与Bland—AltmaJ1法显示一致性较差;在测量范围局限而随机误差和系统误差均小情况下,配对f检验与Bland'Alanan法显示较好一致性,而简单相关分析与组内相关系数显示一致性较差。[结论]配对t检验与简单相关分析作
3、为一致性评价方法有明显缺陷。而组内相关系数与Bland-Alanan法虽有一定局限但可作为一致性评价的优选方法。关键词:一致性;配对l检验;简单相关系数;组内相关系数Bland—A]tman法EVALUATIONONDIFFERENTASSESSMENTMETHODSOFCONSISTENCYOFQUANTITA-TIVEMEASUREMENTSLIYi-chong,LIXiao-song.(WestChinaSchoolofPublicHealth,SichuanUnivers.Chengdu610041,China、Abstract:[Objecti
4、ve]Toevaluatediferentassessmentmethodsofconsistencyofquantitativemeasurements.[Meth·ods]Thepai捌ttest,simplecorrelationanalysis,intra-classcorrelationanalysisandBland—Alananmethodwereadoptedtoevaluatetheconsistencyofatnleexamplewithgoodconsistencyinfactandthreehypotheticalsituatio
5、nsdevelopedfromthetrueone.[Results]Astoconsistencyassessmentofthetrueexample,simplecorrelationanalysis,intra-classcorrelationanalysis,andBland-Alananmethodshowedgoodconsistency,exceptforpairedttest.Inthesituationofobvioussystematicbias,intra—classcorrelationanalysis,pairedttestan
6、dBland-Alananmethodshowedthatthedatawerenotreliable,whereasthePearsoncorrelationsuggestedthatthedatawerehighlyreliable.InthesituationofcomparativelylargerandomelTorwherelowconsisten·cyWasexpected,intra,dasscorrelationanalysis,simplecorrelationanalysisandBland-Ahmanmethodaccuratel
7、yillustratedthis.wh丑epairedttestsuggestedgoodconsistency.Inthesituationoflowrangeofmeasuremen~wherebothsystematicbiasandrandomelTorwere:small,pairedttestandBland-Ahmanmethodsuggestedgoodconsistency,butintra-classcorrelationanaly=sandsimplecorrelationanalysisfailedtodemonstratetha
8、t.[Conclusions]Bothpairedttestandsimplec
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