CAJ | 학술논문

介绍Stata软件在Meta分析异质性检验中的应用.将研究实例建立数据集,采用Stata9软件中相应命令语句实现固定效应模型森林图法附带的Q统计量和统计量Ⅰ2.检验法、H值法、Galbraith图法.采用Q检验、H统计量检验出研究间是否存在异质性,Ⅰ2统计量确定异质性程度,Galbraith图可看出哪些研究是异质性来源的异常点.结论 :Stata软件中四种方法可简单、快速地实现Meta分析中异质性检验.其中H和,Ⅰ2统计量异质性检验结果较为稳健,Galbraith图可直观地显示出研究结果异质性的异常点.
개소Stata연건재Meta분석이질성검험중적응용.장연구실례건립수거집,채용Stata9연건중상응명령어구실현고정효응모형삼림도법부대적Q통계량화통계량Ⅰ2.검험법、H치법、Galbraith도법.채용Q검험、H통계량검험출연구간시부존재이질성,Ⅰ2통계량학정이질성정도,Galbraith도가간출나사연구시이질성래원적이상점.결론 :Stata연건중사충방법가간단、쾌속지실현Meta분석중이질성검험.기중H화,Ⅰ2통계량이질성검험결과교위은건,Galbraith도가직관지현시출연구결과이질성적이상점.
To introduce the application of Stata software to heterogeneity test in meta-analysis.A data set was set up according to the example in the study,and the corresponding commands of the methods in Stata 9 software were applied to test the example.The methods used were Q-test and Ⅰ2statistic attached to the fixed effect model forest plot,H statistic and Galbraith plot.The existence of the heterogeneity among studies could he detected hy Q-test and H statistic and the degree of the heterogeneity could be detected by,Ⅰ2 statistic.The outliers which were the sources of the heterogeneity could be spotted from the Galbraith plot.Heterogeneity test in Meta-analysis can be completed by the four methods in Stata software simply and quickly.H and Ⅰ2 statistics are more robust,and the outliers of the heterogeneity can be clearly seen in the Galbraith plot among the four methods.