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Use of phenotypic covariates in association analysis by sequential addition of cases

Macgregor, Stuart, Craddock, Nicholas John and Holmans, Peter Alan 2006. Use of phenotypic covariates in association analysis by sequential addition of cases. European Journal of Human Genetics 14 (5) , pp. 529-534. 10.1038/sj.ejhg.5201604

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Abstract

Optimal use of phenotype information is important in complex disease gene mapping. We describe a method, sequential addition, for the analysis of case–control data by taking into account of a quantitative trait that is measured in cases but not in controls. The method also provides an estimate of the best phenotype definition for future studies. We demonstrate proof of principle, using an example of incorporation of age-at-onset data into a study of a small sample for association between APOE and late-onset Alzheimer's disease. The sequential addition method finds evidence of association when conventional case–control methods fail. We also illustrate the use of the method for taking account of a dimensional measure of psychosis in a study of the schizophrenia susceptibility gene, dysbindin, in bipolar disorder.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Medicine
Systems Immunity Research Institute (SIURI)
MRC Centre for Neuropsychiatric Genetics and Genomics (CNGG)
ISSN: 1018-4813
Last Modified: 02 May 2019 12:42
URI: http://orca.cf.ac.uk/id/eprint/62142

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