《中华核医学与分子影像杂志》论著中统计学方法应用状况与分析  

Assessment of statistical methods applied in the research papers of Chinese Journal of Nuclear Medicine and Molecular Imaging

作　　者：林芳[1] 韩耀风[1] 方亚[1] 

机构地区：[1]厦门大学公共卫生学院,361102

出　　处：《中华核医学与分子影像杂志》2014年第5期401-404,共4页Chinese Journal of Nuclear Medicine and Molecular Imaging

摘　　要：目的 了解《中华核医学与分子影像杂志》（CJNMMI）中论著的统计学方法应用状况,为进一步提高医学期刊的质量提供依据.方法 利用多阶段随机抽样方法,根据杂志每年的期刊数及论著数抽取2007至2011年发表在CJNMMI上的论著,分别从统计设计、统计描述、统计推断和统计表达4个方面分析其统计学方法的应用及误用情况.结果 共抽取论著116篇.统计设计方面,99.1％（115/116）的论著设立了对照且应用合理,使用随机和盲法的论著分别为16.4％（19/116）和8.6％（10/116）,其中有6篇出现随机误用,3篇出现盲法误用;所有论著都应用统计描述方法,使用较多的指标为相对数、均数和标准差,正确应用率均高于90.0％,45.7％（53/116）的论著使用了统计表且无误用;71.6％（83/116）的论著应用了统计推断方法,其中20.5％ （17/83）为高级统计推断方法并均应用合理,统计推断误用率为29.7％（27/91）,其中方差分析、t检验和χ^2检验等简单统计推断方法误用较多,分别达到27.8％ （5/18）、25.5％ （12/47）和24.0％（6/25）;统计表达方面,98.0％以上的论著给出了样本量和统计量,有60.3％（70/116）出现误用,主要为未给出样本量确定依据（55.2％）.结论 CJNMMI论著中统计学方法应用情况较好,其中以对照、统计描述、高级统计推断方法的应用质量较高,但需加强随机、盲法、t检验、χ^2检验、方差分析和统计表达等的应用质量.Objective To assess the correctness of statistical methods applied in the research papers of Chinese Journal of Nuclear Medicine and Molecular Imaging （CJNMMI） and to provide suggestions for further improving.Methods Papers were obtained from CJNMMI by multi-stage sampling method between 2007 and 2011 according to the number of journals and articles each year.The statistical methods were reviewed in the aspects of statistical design,description,inference and expression.Results A total of 116 papers were collected.For the statistical design,99.1％ （115/116） used the control group and all were applied properly.The methods of randomization and blinding were used in 16.4％ （19/116） and 8.6％ （10/116） of papers,respectively,with 6 and 3 papers applied incorrectly.Statistical description was used in all papers with an accurate rate over 90.0％.The index for statistical description mainly included relative number,mean and standard deviation.The frequency for the usage of statistical tables was 45.7％ （53/116） and all were applied correctly.In 71.6％ （83/116） of papers,statistical inference methods were used,including t test,χ^2 test and analysis of variance.The overall incorrect rate was 29.7％ （27/91）,with 27.8％ （5/18）,25.5％ （12/47） and 24.0％ （6/25） for analysis of variance,t test and χ^2 test,respectively.The frequency for the usage of advanced statistical inference methods was 20.5％ （17/83） and all were applied correctly.For the statistical expression,98.0％ of papers provided the sample size and statistics.The incorrect rate of statistical expression was 60.3％ （70/116） and majority of the mistakes was the lack of basis for determining the sample size.Conclusions The overall correctness of statistical methods applied in the papers of CJNMMI was good,especially in statistical design,statistical description and advanced statistical inference methods.However,quality application skills need to be improved in areas such as methods of randomization,blindin

关 键 词：统计学 期刊 核医学 中国 

分 类 号：R311[医药卫生—基础医学]