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Association between parental history and genetic risk scores for coronary heart disease prediction: The population-based CoLaus study.

Abstract：

BACKGROUND AND AIMS:Parental history (PH) and genetic risk scores (GRSs) are separately associated with coronary heart disease (CHD), but evidence regarding their combined effects is lacking. We aimed to evaluate the joint associations and predictive ability of PH and GRSs for incident CHD. METHODS:Data for 4283 Caucasians were obtained from the population-based CoLaus Study, over median follow-up time of 5.6 years. CHD was defined as incident myocardial infarction, angina, percutaneous coronary revascularization or bypass grafting. Single nucleotide polymorphisms for CHD identified by genome-wide association studies were used to construct unweighted and weighted versions of three GRSs, comprising of 38, 53 and 153 SNPs respectively. RESULTS:PH was associated with higher values of all weighted GRSs. After adjustment for age, sex, smoking, diabetes, systolic blood pressure, low and high density lipoprotein cholesterol, PH was significantly associated with CHD [HR 2.61, 95% CI (1.47-4.66)] and further adjustment for GRSs did not change this estimate. Similarly, one standard deviation change of the weighted 153-SNPs GRS was significantly associated with CHD [HR 1.50, 95% CI (1.26-1.80)] and remained so, after further adjustment for PH. The weighted, 153-SNPs GRS, but not PH, modestly improved discrimination [(C-index improvement, 0.016), p = 0.048] and reclassification [(NRI improvement, 8.6%), p = 0.027] beyond cardiovascular risk factors. After including both the GRS and PH, model performance improved further [(C-index improvement, 0.022), p = 0.006]. CONCLUSION:After adjustment for cardiovascular risk factors, PH and a weighted, polygenic GRS were jointly associated with CHD and provided additive information for coronary events prediction.

journal_name

Atherosclerosis

journal_title

Atherosclerosis

authors

Antiochos P,Marques-Vidal P,McDaid A,Waeber G,Vollenweider P

doi

10.1016/j.atherosclerosis.2015.10.104

subject

Has Abstract

pub_date

2016-01-01 00:00:00

pages

59-65

eissn

0021-9150

issn

1879-1484

pii

S0021-9150(15)30188-X

journal_volume

244

pub_type

杂志文章,多中心研究

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Association between parental history and genetic risk scores for coronary heart disease prediction: The population-based CoLaus study.