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A new estimate of family disease history providing improved prediction of disease risks
Journal article   Open access   Peer reviewed

A new estimate of family disease history providing improved prediction of disease risks

Rui Feng, Leslie A. McClure, Hemant K. Tiwari and George Howard
Statistics in medicine, v 28(8), pp 1269-1283
15 Apr 2009
PMID: 19170247
url
https://europepmc.org/articles/pmc3193605View
Accepted (AM)Open Access (License Unspecified) Open

Abstract

Life Sciences & Biomedicine Mathematical & Computational Biology Mathematics Medical Informatics Medicine, Research & Experimental Physical Sciences Public, Environmental & Occupational Health Research & Experimental Medicine Science & Technology Statistics & Probability
Complex diseases often aggregate within families and using the history of family members' disease can potentially increase the accuracy of the risk assessment and allow clinicians to better target on high risk individuals. However, available family risk scores do not reflect the age of disease onset, gender and family structures simultaneously. In this paper, we propose an alternative approach for a family risk score, the stratified log-rank family score (SLFS), which incorporates the age of disease onset of family members, gender differences and the relationship among family members. Via simulation, we demonstrate that the new SLFS is more closely associated with the true family risk for the disease and more robust to family sizes than two existing methods. We apply our proposed method and the two existing methods to a study of stroke and heart disease. The results show that assessing family history can improve the prediction of disease risks and the SLFS has strongest positive associations with both myocardial infarction and stroke. Copyright (C) 2009 John Wiley & Sons, Ltd.

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Web of Science research areas
Mathematical & Computational Biology
Medical Informatics
Medicine, Research & Experimental
Public, Environmental & Occupational Health
Statistics & Probability
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