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Healthy lifestyle change and subclinical atherosclerosis in young adults: Coronary Artery Risk Development in Young Adults (CARDIA) study.

ABSTRACT: BACKGROUND:The benefits of healthy habits are well established, but it is unclear whether making health behavior changes as an adult can still alter coronary artery disease risk. METHODS AND RESULTS:The Coronary Artery Risk Development in Young Adults (CARDIA) prospective cohort study (n=3538) assessed 5 healthy lifestyle factors (HLFs) among young adults aged 18 to 30 years (year 0 baseline) and 20 years later (year 20): not overweight/obese, low alcohol intake, healthy diet, physically active, nonsmoker. We tested whether change from year 0 to 20 in a continuous composite HLF score (HLF change; range, -5 to +5) is associated with subclinical atherosclerosis (coronary artery calcification and carotid intima-media thickness) at year 20, after adjustment for demographics, medications, and baseline HLFs. By year 20, 25.3% of the sample improved (HLF change ?+1); 40.4% deteriorated (had fewer HLFs); 34.4% stayed the same; and 19.2% had coronary artery calcification (>0). Each increase in HLFs was associated with reduced odds of detectable coronary artery calcification (odds ratio=0.85; 95% confidence interval, 0.74-0.98) and lower intima-media thickness (carotid bulb ?=-0.024, P=0.001), and each decrease in HLFs was predictive to a similar degree of greater odds of coronary artery calcification (odds ratio=1.17; 95% confidence interval, 1.02-1.33) and greater intima-media thickness (?=+0.020, P<0.01). CONCLUSIONS:Healthy lifestyle changes during young adulthood are associated with decreased risk and unhealthy lifestyle changes are associated with increased risk for subclinical atherosclerosis in middle age.

SUBMITTER: Spring B

PROVIDER: S-EPMC4615574 | biostudies-literature | 2014 Jul

REPOSITORIES: biostudies-literature

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Healthy lifestyle change and subclinical atherosclerosis in young adults: Coronary Artery Risk Development in Young Adults (CARDIA) study.

Spring Bonnie B Moller Arlen C AC Colangelo Laura A LA Siddique Juned J Roehrig Megan M Daviglus Martha L ML Polak Joseph F JF Reis Jared P JP Sidney Stephen S Liu Kiang K

Circulation 20140428 1

<h4>Background</h4>The benefits of healthy habits are well established, but it is unclear whether making health behavior changes as an adult can still alter coronary artery disease risk.<h4>Methods and results</h4>The Coronary Artery Risk Development in Young Adults (CARDIA) prospective cohort study (n=3538) assessed 5 healthy lifestyle factors (HLFs) among young adults aged 18 to 30 years (year 0 baseline) and 20 years later (year 20): not overweight/obese, low alcohol intake, healthy diet, phy ...[more]

PMID: 24982115

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Project description:BackgroundElevated Fibroblast Growth Factor-23 (FGF23) levels have been associated with greater left ventricular mass (LVM) and heart failure. Whether higher FGF23 is associated with higher LVH prevalence and longitudinal changes in LVM and myocardial strain in middle-aged adults without cardiovascular disease (CVD) or chronic kidney disease (CKD) is unknown.MethodsWe studied 3,113 adults without CVD at baseline participating in the Year 25 (2010-2011) follow-up exam of the Coronary Artery Risk Development in Young Adults (CARDIA) study. We studied the association of Year 25 c-terminal FGF23 concentrations with indexed LVM (LVMI=LVM/height2.7), LVH and myocardial strain as assessed by speckle tracking strain echocardiography. Among the 2,758 (88.6%) participants who returned for the Year 30 examination, we also investigated the association of Year 25 FGF23 with 5 Year change in LVMI, strain parameters and incident LVH.ResultsThe mean age was 50.0 (±3.6) years, 56.8% were female, 45.7% were Black and 6.4% had CKD. There was 6.0% LVH prevalence at Year 25. Mean 5 Year change in LVMI was 5.3 (±7.7) grams/meter. In multivariable models, FGF23 in the highest quartile was associated with greater odds of LVH at Year 25 compared to lower quartiles. [Odds Ratio 95% CI: 1.81 (1.28, 2.58)] with similar findings after exclusion of participants with CKD. There was no interaction between FGF23 and race (P = .18) or sex (P = .80). There was no association between FGF23 and global longitudinal strain. There was no association between FGF23 and 5 Year change in LVMI. There was no association between higher FGF23 and 5 year incident LVH.ConclusionsIn a middle-aged adult population without known CVD or CKD, higher FGF23 was associated with greater odds of LVH, but not with greater increases in LVM over time. Further study is needed to elucidate whether FGF23 is a risk marker for underlying LVH or a mechanism for increased LVM over time in younger and middle-aged adult populations without CKD.

Project description:Importance:Few tools exist for assessing the risk for early atherosclerotic cardiovascular disease (ASCVD) events in young adults. Objective:To assess the performance of the Healthy Heart Score (HHS), a lifestyle-based tool that estimates ASCVD events in older adults, for ASCVD events occurring before 55 years of age. Design, Setting, and Participants:This prospective cohort study included 4893 US adults aged 18 to 30 years from the Coronary Artery Risk Development in Young Adults (CARDIA) study. Participants underwent measurement of lifestyle factors from March 25, 1985, through June 7, 1986, and were followed up for a median of 27.1 years (interquartile range, 26.9-27.2 years). Data for this study were analyzed from February 24 through December 12, 2016. Exposures:The HHS includes age, smoking status, body mass index, alcohol intake, exercise, and a diet score composed of self-reported daily intake of cereal fiber, fruits and/or vegetables, nuts, sugar-sweetened beverages, and red and/or processed meats. The HHS in the CARDIA study was calculated using sex-specific equations produced by its derivation cohorts. Main Outcomes and Measures:The ability of the HHS to assess the 25-year risk for ASCVD (death from coronary heart disease, nonfatal myocardial infarction, and fatal or nonfatal ischemic stroke) in the total sample, in race- and sex-specific subgroups, and in those with and without clinical ASCVD risk factors at baseline. Model discrimination was assessed with the Harrell C statistic; model calibration, with Greenwood-Nam-D'Agostino statistics. Results:The study population of 4893 participants included 2205 men (45.1%) and 2688 women (54.9%) with a mean (SD) age at baseline of 24.8 (3.6) years; 2483 (50.7%) were black; and 427 (8.7%) had at least 1 clinical ASCVD risk factor (hypertension, hyperlipidemia, or diabetes types 1 and 2). Among these participants, 64 premature ASCVD events occurred in women and 99 in men. The HHS showed moderate discrimination for ASCVD risk assessment in this diverse population of mostly healthy young adults (C statistic, 0.71; 95% CI, 0.66-0.76); it performed better in men (C statistic, 0.74; 95% CI, 0.68-0.79) than in women (C statistic, 0.69; 95% CI, 0.62-0.75); in white (C statistic, 0.77; 95% CI, 0.71-0.84) than in black (C statistic, 0.66; 95% CI, 0.60-0.72) participants; and in those without (C statistic, 0.71; 95% CI, 0.66-0.76) vs with (C statistic, 0.64; 95% CI, 0.55-0.73) clinical risk factors at baseline. The HHS was adequately calibrated overall and within each subgroup. Conclusions and Relevance:The HHS, when measured in younger persons without ASCVD risk factors, performs moderately well in assessing risk for ASCVD events by early middle age. Its reliance on self-reported, modifiable lifestyle factors makes it an attractive tool for risk assessment and counseling for early ASCVD prevention.

Dataset Information

Healthy lifestyle change and subclinical atherosclerosis in young adults: Coronary Artery Risk Development in Young Adults (CARDIA) study.

Publications

Healthy lifestyle change and subclinical atherosclerosis in young adults: Coronary Artery Risk Development in Young Adults (CARDIA) study.

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