实际上，除了队列研究，RCT也可以计算RR，因为RCT也是先对研究对象分组，再前瞻性地观察结局的发生情况。...
我们常采用的另外一个方式就是case-control study; 我们选取26个健康人，26个患病人，具体如下DiseaseHe...
Kreiger N, Nishri ED (1997) The effect of nonresponse on estimation of relative risk in a case–control study. Ann Epidemiol 7:194–199Kreiger, N.; Nishri, E.D. The effect of nonresponse on estimation of relative risk in a case-control study. Ann. Epidemiol. 1997, 7, 194-199....
(2011). Relative risk regression for current status data in case-cohort studies. Canadian Journal of Statistics 39, 557-577.Li, Z. and Nan, B. (2011). Relative risk regression for current status data in case-cohort studies. Canad. J. Statist. 39, 557-577....
If it’s above 1, then the tutored group actually had a higher risk of failing than the controls. Odds Ratios The odds ratio is the ratio of the odds of an event in the Treatment group to the odds of an event in the control group. The term ‘Odds’ is commonplace, but not always...
Subjects for whom an event occurred (case group) are often observed but generally analyzed in comparison to those for whom an event did not (control group); however, estimating relative risk using case group data without approximation is hindered. In this study, an obstacle to estimate relative...
5thiscanbeequivalentlywrittenintermsofexcessrelativerisk(ERR)asfollows:RERI ERR(AB)–ERR(A B)–ERR(AB ),whereERR RR 1.Specifically,inacase-controlstudy,thelinearadditiveodds-ratiomodelproposedbyRichardsonandKaufman5hastheformofOdds e 0 1 1A 2B 3AB ,(2)inwhichthecoefficient 3measuresthe...
Please note that the numbers are slightly different from the ones in the table in the original example but match the one used in the formula. "Confidence Intervals for the Risk Ratio (Relative Risk)" "A Nested Case-Control Study" confidence-interval relative-risk Share Cite Improve this questi...
It will be demonstrated that misclassification can also distort trends in relative risks. Real examples from the epidemiological literature are used for illustration.关键词: Case-Control Study Dose-Response Epidemiology Misclassification Odds Ratio Relative Risk ...
When the risk ratio cannot be obtained directly (such as in a case-control study), the odds ratio is calculated and often interpreted as if it were the risk ratio. Subsequently, the term relative risk commonly refers to either the risk ratio or the odds ratio. However, only under certain...