Chen Yang,Liu Yuanyuan,Li Changping,Hu Liangping,How to use t test correctly——the noninferiority t test and the SAS implementation[J].SICHUAN MENTAL HEALTH,2020,33(3):226-230

How to use t test correctly——the noninferiority t test and the SAS implementation

DOI：10.11886/scjsws20200526006

English keywords:Noninferiority testing Noninferiority limit value t test Comparison of arithmetic mean

Fund projects:国家自然科学基金项目（项目名称：贝叶斯生存分析方法在肝细胞癌肝移植患者预后预测中的应用研究，项目编号：81803333）

Author Name	Affiliation	Postcode
Chen Yang	Department of Epidemiology and Health Statistics, School of Public Health, Tianjin Medical University, Tianjin 300070, China	300070
Liu Yuanyuan	Department of Epidemiology and Health Statistics, School of Public Health, Tianjin Medical University, Tianjin 300070, China	300070
Li Changping	Department of Epidemiology and Health Statistics, School of Public Health, Tianjin Medical University, Tianjin 300070, China Specialty Committee of Clinical Scientific Research Statistics of World Federation of Chinese Medicine Societies, Beijing 100029, China	100029
Hu Liangping	Specialty Committee of Clinical Scientific Research Statistics of World Federation of Chinese Medicine Societies, Beijing 100029, China Graduate School, Academy of Military Sciences PLA China, Beijing 100850, China	100850

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English abstract:

This article mainly introduced the concept, principle and function of noninferiority testing in clinical trials and the implementation of SAS for noninferiority testing of unary quantitative data in group design. The application of SAS software in the noninferiority testing was demonstrated through examples. The operation was based on the original quantitative data or the data structure of the given sample size, mean, and standard deviation. And it was also to explain the results and make conclusions.

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