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Effect Of Misreported Family History On Mendelian Mutation Prediction Models, Hormuzd A. Katki
Effect Of Misreported Family History On Mendelian Mutation Prediction Models, Hormuzd A. Katki
Johns Hopkins University, Dept. of Biostatistics Working Papers
People with familial history of disease often consult with genetic counselors about their chance of carrying mutations that increase disease risk. To aid them, genetic counselors use Mendelian models that predict whether the person carries deleterious mutations based on their reported family history. Such models rely on accurate reporting of each member's diagnosis and age of diagnosis, but this information may be inaccurate. Commonly encountered errors in family history can significantly distort predictions, and thus can alter the clinical management of people undergoing counseling, screening, or genetic testing. We derive general results about the distortion in the carrier probability estimate …