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Factors influencing the optimal control-to-case ratio in matched case-control studies.

S. HENNESSY ; J.A. BERLIN ; W.B. BILKER ; B.L. STROM ; Center for Clinical Epidemiology and Biostatistics. And Department of Biostatistics and Epidemiology. University of Pennsylvania School of Medicine. Philadelphia. PA. USA |

Dans American journal of epidemiology (vol. 149, n° 2, 1999)

[BDSP. Notice produite par INIST KyiiR0xA. Diffusion soumise à autorisation]. Statistical power in matched case-control studies depends on both the correlation coefficient between cases and their matched controls (phi) and the prevalence of expo[...]

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