与其相似的有个指标relative risk(RR),其可以理解为risk ratio,用于: 在队列研究(cohort study)中,分析暴露因素与发病的关联程度;主要是反映暴露与发病(死亡)关联强度的最有用的指标,RR适用于队列研究或随机对照试验。 以一个例子来说明两者的区别,数据表格如下(Mutated gene对应暴露风险因素,Cancer对应疾病): 则OR...
与其相似的有个指标relative risk(RR)，其可以理解为risk ratio，⽤于：在队列研究（cohort study）中，分析暴露因素与发病的关联程度；主要是反映暴露与发病（死亡）关联强度的最有⽤的指标，RR适⽤于队列研究或随机对照试验。以⼀个例⼦来说明两者的区别，数据表格如下（Mutated gene对应暴露风险因素，Cancer...
与其相似的有个指标relative risk(RR),其可以理解为risk ratio,用于: 在队列研究(cohort study)中,分析暴露因素与发病的关联程度;主要是反映暴露与发病(死亡)关联强度的最有用的指标,RR适用于队列研究或随机对照试验。 以一个例子来说明两者的区别,数据表格如下(Mutated gene对应暴露风险因素,Cancer对应疾病): 则OR...
Epidemiologists study populations by following many people who are or are not exposed to a putative cause of disease; this is the cohort study. It allows us to calculate the added risk imposed by that factor (the risk ratio). This can be approximated by the odds ratio under certain ...
What's the Relative Risk?: A Method of Correcting the Odds Ratio in Cohort Studies of Common Outcomes Logistic regression is used frequently in cohort studies and clinical trials. When the incidence of an outcome of interest is common in the study populatio... J Zhang,KF Yu - 《Jama》 被...
It represents the ratio of the odds of an event occurring in one group to the odds of it occurring in another group.In other words, it quantifies the strength and direction of the relationship between the exposure and the outcome in a case-control study or in a cohort study where the ...
1 However, logistic regression yields an odds ratio rather than a risk ratio, even in a cohort study. Under the same rule, when the outcome of interest is common in the study population (though it could be rare in the general population), the adjusted odds ratio from the logistic ...
among noncases. The disease-odds ratio for a cohort or cross section is the ratio of the odds in favor of disease among the exposed to the odds in favor of disease among the unexposed. The prevalence-odds ratio refers to an odds ratio derived cross-sectionally from studies of prevalent ...
In a retrospective cohort study, how could one obtain an odds ratio? Reply Madeleine says February 19, 2018 at 5:52 pm Waoh! So nice explanations , they are very helpful to understand the OR and RR, Thank you Reply KS says December 21, 2017 at 10:36 am Thanks for giving very ...
Terrell ML, Berzen AK, Small CM, Cameron LL, Wirth JJ, Marcus M (2009) A cohort study of the association between secondary sex ratio and parental exposure to polybrominated biphenyl (PBB) and polychlorinated biphenyl (PCB). Health 8:1–8 CrossRef UNSCEAR (2000) Sources and effects of io...