Predictive Utility of Polygenic Risk Scores for Coronary Heart Disease in Three Major Racial and Ethnic Groups

Because polygenic risk scores (PRSs) for coronary heart disease (CHD) are derived from mainly European ancestry (EA) cohorts, their validity in African ancestry (AA) and Hispanic ethnicity (HE) individuals is unclear. We investigated associations of "restricted" and genome-wide PRSs with C...

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Vydáno v:American journal of human genetics Ročník 106; číslo 5; s. 707
Hlavní autoři: Dikilitas, Ozan, Schaid, Daniel J, Kosel, Matthew L, Carroll, Robert J, Chute, Christopher G, Denny, Joshua A, Fedotov, Alex, Feng, QiPing, Hakonarson, Hakon, Jarvik, Gail P, Lee, Ming Ta Michael, Pacheco, Jennifer A, Rowley, Robb, Sleiman, Patrick M, Stein, C Michael, Sturm, Amy C, Wei, Wei-Qi, Wiesner, Georgia L, Williams, Marc S, Zhang, Yanfei, Manolio, Teri A, Kullo, Iftikhar J
Médium: Journal Article
Jazyk:angličtina
Vydáno: United States 07.05.2020
Témata:
coronary artery disease
risk prediction
hispanic
ischemic heart disease
coronary heart disease
multiethnic
genome-wide polygenic score
African American
polygenic risk scores
ISSN:1537-6605, 1537-6605
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Shrnutí:Because polygenic risk scores (PRSs) for coronary heart disease (CHD) are derived from mainly European ancestry (EA) cohorts, their validity in African ancestry (AA) and Hispanic ethnicity (HE) individuals is unclear. We investigated associations of "restricted" and genome-wide PRSs with CHD in three major racial and ethnic groups in the U.S. The eMERGE cohort (mean age 48 ± 14 years, 58% female) included 45,645 EA, 7,597 AA, and 2,493 HE individuals. We assessed two restricted PRSs (PRS and PRS ; 28 and 50 variants, respectively) and two genome-wide PRSs (PRS and PRS ; 1.7 M and 6.6 M variants, respectively) derived from EA cohorts. Over a median follow-up of 11.1 years, 2,652 incident CHD events occurred. Hazard and odds ratios for the association of PRSs with CHD were similar in EA and HE cohorts but lower in AA cohorts. Genome-wide PRSs were more strongly associated with CHD than restricted PRSs were. PRS , the best performing PRS, was associated with CHD in all three cohorts; hazard ratios (95% CI) per 1 SD increase were 1.53 (1.46-1.60), 1.53 (1.23-1.90), and 1.27 (1.13-1.43) for incident CHD in EA, HE, and AA individuals, respectively. The hazard ratios were comparable in the EA and HE cohorts (p = 0.77) but were significantly attenuated in AA individuals (p = 2.9 × 10 ). These results highlight the potential clinical utility of PRSs for CHD as well as the need to assemble diverse cohorts to generate ancestry- and ethnicity PRSs.
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ISSN:1537-6605
1537-6605
DOI:10.1016/j.ajhg.2020.04.002