[Calculation of sample size for the detection of relative risk with a predetermined confidence level and power].
Herein, a method of calculation is proposed for determining the number of subjects required for risk ratio detection, the significance level (alpha) and the power (1 - beta) being fixed in advance. Risk ratios under consideration are rate ratios, proportion ratios and odds ratios. The method of calculation is based on the logarithmic transformation.
Département de médecine sociale et préventive, Faculté de Médecine, Université Laval, Québec.
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PM
Bernard
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Lapointe
D016001:Confidence Intervals; D006801:Humans; D016017:Odds Ratio; D012306:Risk; D012494:Sampling Studies; D013223:Statistics as Topic
Calcul des tailles d'échantillons pour la détection d'un risque relatif, avec un niveau de confiance et une puissance déterminés.