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Design aspects and odds ratio estimation in multicenter case-control studies

Design aspects and odds ratio estimation in multicenter case-control studies

Biometrical Journal 34(6): 675-690

ISSN/ISBN: 0323-3847

DOI: 10.1002/bimj.4710340606

In this paper we propose a method to be used in the planning stage of a case-control study. An allocation rule for controls in multicenter case-control studies is proposed which would assure a simple, efficient and unbiased estimation of the odds ratio in the pooled data. It is shown that the efficiency of the design increases with increasing correlation between study center and risk factor. Sources of bias and their implications for relative risk estimation are discussed. The method is demonstrated with data from a case-control study.

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Accession: 008434593

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