Article
Sequential tests for gene-environment interactions in matched case-control studies.
Statistics in medicine - 30 Dec 2004
Tweel Ingeborg van der, Schipper Maria
Abstract excerpt
The sample size necessary to detect a significant gene x environment interaction in an observational study can be large. For reasons of cost-effectiveness and efficient use of available biological samples we investigated the properties of sequential designs in matched case-control studies to test...
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