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Relative risk is usually the parameter of interest in epidemiologic and medical studies. In this paper, the author proposes a modified Poisson regression approach (i.e., Poisson regression with a robust error variance) to estimate this effect measure directly. A simple 2-by-2 table is used to justify the validity of this approach. Results from a limited simulation study indicate that this approach is very reliable even with total sample sizes as small as 100. The method is illustrated with two data sets.
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Guangyong Zou (Fri,) studied this question.
www.synapsesocial.com/papers/69a725078724a1de474f14ae — DOI: https://doi.org/10.1093/aje/kwh090
Guangyong Zou
American Journal of Epidemiology
Robarts Clinical Trials
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