Genetic Risk Prediction and a Two-Stage Risk Screening Strategy for Coronary Heart Disease
By E. Tikkanen, Aki S. Havulinna, A. Palotie, Veikko Salomaa, Samuli Ripatti. 2013
162 citations recorded by the source corpus.
Objective—Genome-wide association studies have identified several genetic variants associated with coronary heart disease (CHD). The aim of this study was to evaluate the genetic risk discrimination and reclassification and apply the results for a 2-stage population risk screening strategy for CHD. Approach and Results—We genotyped 28 genetic variants in 24 124 participants in 4 Finnish population-based, prospective cohorts (recruitment years 1992–2002). We constructed a multilocus genetic risk score and evaluated its association with incident cardiovascular disease events. During the median follow-up time of 12 years (interquartile range 8.75–15.25 years), we observed 1093 CHD, 1552 cardiovascular disease, and 731 acute coronary syndrome events. Adding genetic information to conventional risk factors and family history improved risk discrimination of CHD (C-index 0.856 versus 0.851; P=0.0002) and other end points (cardiovascular disease: C-index 0.840 versus 0.837, P=0.0004; acute coronary syndrome: C-index 0.859 versus 0.855, P=0.001). In a standard population of 100 000 individuals, additional genetic screening of subjects at intermediate risk for CHD would reclassify 2144 subjects (12%) into high-risk category. Statin allocation for these subjects is estimated to prevent 135 CHD cases over 14 years. Similar results were obtained by external validation, where the effects were estimated from a training data set and applied for a test data set. Conclusions—Genetic risk score improves risk prediction of CHD and helps to identify individuals at high risk for the first CHD event. Genetic screening for individuals at intermediate cardiovascular risk could help to prevent future cases through better targeting of statins.
Subfields: Cardiology and Cardiovascular Medicine, Genetics, Surgery
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Citations in the corpus
- 2016 European Guidelines on cardiovascular disease prevention in clinical practice (2016, background): “In the few studies that simultaneously assessed and reported the effects of family history and genetic scores, family history remained significantly associated with the incidence of CVD after adjusting for the genetic scores.(75,76) Limited data exist regarding the ability of family history to impro”
- 2016 European Guidelines on cardiovascular disease prevention in clinical practice (2017, unknown): “The biggest improvements in the NRI were observed in participants at intermediate risk, while little or no improvement was observed in participants at high risk [75, 81].”
- 2016 European Guidelines on cardiovascular disease prevention in clinical practice. (2016, background): “In the few studies that simultaneously assessed and reported the effects of family history and genetic scores, family history remained significantly associated with the incidence of CVD after adjusting for the genetic scores.(75,76) Limited data exist regarding the ability of family history to impro”