Prevalence odds ratio versus prevalence ratio: choice comes with consequences

被引:235
作者
Tamhane, Ashutosh R. [1 ]
Westfall, Andrew O. [1 ,2 ]
Burkholder, Greer A. [1 ]
Cutter, Gary R. [2 ]
机构
[1] Univ Alabama Birmingham, Dept Med, Div Infect Dis, Birmingham, AL 35294 USA
[2] Univ Alabama Birmingham, Dept Biostat, Birmingham, AL USA
关键词
prevalence odds ratio; prevalence ratio; odds ratio; risk ratio; association; CROSS-SECTIONAL DATA; RELATIVE RISK; STATISTICS; COHORT;
D O I
10.1002/sim.7059
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
Odds ratio, risk ratio, and prevalence ratio are some of the measures of association which are often reported in research studies quantifying the relationship between an independent variable and the outcome of interest. There has been much debate on the issue of which measure is appropriate to report depending on the study design. However, the literature on selecting a particular category of the outcome to be modeled and/or change in reference group for categorical independent variables and the effect on statistical significance, although known, is scantly discussed nor published with examples. In this article, we provide an example of a cross-sectional study wherein prevalence ratio was chosen over (Prevalence) odds ratio and demonstrate the analytic implications of the choice of category to be modeled and choice of reference level for independent variables. Copyright (c) 2016 John Wiley & Sons, Ltd.
引用
收藏
页码:5730 / 5735
页数:6
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