000 03487nam a22003497a 4500
008 181108s20182018 xxu||||| |||| 00| 0 eng d
022 _a0009-7322
024 _a10.1161/CIRCULATIONAHA.118.033505 [doi]
040 _aOvid MEDLINE(R)
099 _a30354651
245 _aAstronaut Cardiovascular Health and Risk Modification (Astro-CHARM) Coronary Calcium Atherosclerotic Cardiovascular Disease Risk Calculator.
251 _aCirculation. 138(17):1819-1827, 2018 Oct 23.
252 _aCirculation. 138(17):1819-1827, 2018 Oct 23.
253 _aCirculation
260 _c2018
260 _fFY2019
265 _sppublish
266 _d2018-11-09
501 _aAvailable online from MWHC library: 1950 - present, Available in print through MWHC library: 1999 - 2006
520 _aBACKGROUND: Coronary artery calcium (CAC) is a powerful novel risk indicator for atherosclerotic cardiovascular disease (ASCVD). Currently, there is no available ASCVD risk prediction tool that integrates traditional risk factors and CAC.
520 _aCONCLUSION: The Astro-CHARM tool is the first integrated ASCVD risk calculator to incorporate risk factors, including high-sensitivity C-reactive protein and family history, and CAC data. It improves risk prediction in comparison with traditional risk factor equations and could be useful in risk-based decision making for cardiovascular disease prevention in the middle-aged general population.
520 _aMETHODS: To develop a CAC ASCVD risk tool for younger individuals in the general population, subjects aged 40 to 65 without prior cardiovascular disease from 3 population-based cohorts were included. Cox proportional hazards models were developed incorporating age, sex, systolic blood pressure, total and high-density lipoprotein cholesterol, smoking, diabetes mellitus, hypertension treatment, family history of myocardial infarction, high-sensitivity C-reactive protein, and CAC scores (Astro-CHARM model [Astronaut Cardiovascular Health and Risk Modification]) as dependent variables and ASCVD (nonfatal/fatal myocardial infarction or stroke) as the outcome. Model performance was assessed internally, and validated externally in a fourth cohort.
520 _aRESULTS: The derivation study comprised 7382 individuals with a mean age 51 years, 45% women, and 55% nonwhite. The median CAC was 0 (25th, 75th [0,9]), and 304 ASCVD events occurred in a median 10.9 years of follow-up. The c-statistic was 0.784 for the risk factor model, and 0.817 for Astro-CHARM ( P<0.0001). In comparison with the risk factor model, the Astro-CHARM model resulted in integrated discrimination improvement (0.0252), and net reclassification improvement (0.121; P<0.0001), as well. The Astro-CHARM model demonstrated good discrimination (c=0.78) and calibration (Nam-D'Agostino chi<sup>2</sup>, 13.2; P=0.16) in the validation cohort (n=2057; 55 events). A mobile application and web-based tool were developed to facilitate clinical application of this tool ( www.AstroCHARM.org ).
546 _aEnglish
650 _aIN PROCESS -- NOT YET INDEXED
651 _aMedStar Heart & Vascular Institute
657 _aJournal Article
700 _aTaylor, Allen J
790 _aAyers CA, Budoff MJ, de Lemos JA, Khera A, Levine BD, Locke J, Massaro JM, McClelland RL, O'Donnell CJ, Taylor A
856 _uhttps://dx.doi.org/10.1161/CIRCULATIONAHA.118.033505
_zhttps://dx.doi.org/10.1161/CIRCULATIONAHA.118.033505
942 _cART
_dArticle
999 _c3897
_d3897