A brief note on overlapping confidence intervals

被引:262
作者
Austin, PC
Hux, JE
机构
[1] Univ Toronto, Inst Clin Evaluat Sci, Toronto, ON M4N 3M5, Canada
[2] Univ Toronto, Dept Publ Hlth Sci, Toronto, ON M4N 3M5, Canada
[3] Univ Toronto, Dept Med, Toronto, ON M4N 3M5, Canada
[4] Sunnybrook & Womens Coll, Hlth Sci Ctr, Div Gen Internal Med, Clin Epidemiol Unit, Toronto, ON, Canada
[5] Sunnybrook & Womens Coll, Hlth Sci Ctr, Hlth Care Res Program, Toronto, ON, Canada
关键词
D O I
10.1067/mva.2002.125015
中图分类号
R61 [外科手术学];
学科分类号
摘要
Clinical researchers frequently assess the statistical significance of the difference between two means by examining whether the two 95% confidence intervals overlap. The purpose of this brief communication is to illustrate that the 95% confidence intervals for two means can overlap and yet the two means can be statistically significantly different from one another at the alpha = 0.05 level.
引用
收藏
页码:194 / 195
页数:2
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