Power and sample size for testing homogeneity of relative risks in prospective studies

Biometrics
J Nam

Abstract

Power and sample-size formulas for testing the homogeneity of relative risks using the score method are presented. The homogeneity score test (Gart, 1985, Biometrika 72, 673-677) is formally equivalent to the Pearson chi-square test, although they look different. Results of this paper may be useful in assessing the validity of the model of a common relative risk before combining several 2 x 2 tables or in designing a prospective study for detecting heterogeneity of relative risks.

References

Sep 7, 1978·The New England Journal of Medicine·D EvansE H Kass
Feb 18, 1974·JAMA : the Journal of the American Medical Association·M Takahashi, D B Loveland
Mar 21, 1968·The New England Journal of Medicine·C M Kunin, R C McCormack
Jan 1, 1981·Journal of Chronic Diseases·R E Tarone

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Citations

May 25, 2011·Biometrical Journal. Biometrische Zeitschrift·Hui-Qiong Li, Nian-Sheng Tang
Jun 23, 2010·Genetic Epidemiology·Xuejun QinSilke Schmidt
Oct 22, 2013·Journal of Biopharmaceutical Statistics·Nian-Sheng TangHu-Qiong Li

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