Hu Chunyan,Hu Liangping,How to use χ² test correctly——the three kinds of special tests of the survival data and the implementation of the SAS software[J].SICHUAN MENTAL HEALTH,2021,34(5):404-410

How to use χ² test correctly——the three kinds of special tests of the survival data and the implementation of the SAS software

DOI：10.11886/scjsws20210915002

English keywords:Survival data Multiple comparisons Trend test Covariate test χ² distribution

Fund projects:

Author Name	Affiliation	Postcode
Hu Chunyan	Graduate School， Academy of Military Sciences PLA China， Beijing 100850， China	100850
Hu Liangping	Graduate School， Academy of Military Sciences PLA China， Beijing 100850， China Specialty Committee of Clinical Scientific Research Statistics of World Federation of Chinese Medicine Societies， Beijing 100029， China	100029

Hits:

Download times:

English abstract:

The purpose of the paper was to introduce the three special tests of the survival data and the SAS implementation. Specifically， it was the multiple comparisons， the trend test and the covariate test of the survival data. The multiple comparisons involved two situations： "the pairwise comparison" and "the comparison with control group". In the trend test， it involved two algorithms： "the log-rank test" and "the Wilcoxon test". In the covariate test， it involved "the single covariate test method" and "the multi-covariate test method of adding one covariate step by step". With the help of the SAS software and based on an example， this article implemented the three special tests mentioned above， explained the output results， and made statistical and professional conclusions.

View Full Text View/Add Comment Download reader