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Cardiovascular health metrics among South Asian adults in the United States: Prevalence and associations with subclinical atherosclerosis.

ABSTRACT: South Asians, a fast growing ethnic group in the US, have an increased risk for cardiovascular disease compared to the general population. We examined the prevalence and distribution of the American Heart Association's Life's Simple 7 cardiovascular health (CVH) metrics using data from Mediators of Atherosclerosis in South Asians Living in America (MASALA) study, and cross-sectional associations between number of CVH metrics in the ideal range with subclinical atherosclerosis assessed using coronary artery calcium (CAC) measured using cardiac computed tomography and carotid intima media thickness (CIMT) measured using high-resolution B-mode ultrasonography. CAC was modeled as Agatston scores=0, 1-400 and >400; CIMT was examined continuously and as internal CIMT>1.5mm. In the MASALA cohort (N=875; mean age: 55years; 53% men; living in greater San Francisco and Chicago areas; October 2010-March 2013) without prevalent coronary heart disease, no participant had all 7 metrics in ideal range; approximately 20% of the participants had at least 5 metrics in ideal range. Higher number of CVH metrics in the ideal range was inversely associated with subclinical atherosclerosis. A 1 unit increase in the number of CVH metrics in the ideal range was associated with 32% lower odds of CAC=1-400 (vs. CAC=0; OR=0.68, 95% CI: 0.60, 0.78) and 28% lower odds of internal CIMT>1.5mm (OR=72, 95% CI: 0.61, 0.85). These data show the prevalence of CVH metrics among South Asians in the US, and provide empirical evidence on inverse associations of meeting ideal levels for higher number of metrics and subclinical atherosclerosis.

SUBMITTER: Talegawkar SA

PROVIDER: S-EPMC5329127 | biostudies-literature | 2017 Mar

REPOSITORIES: biostudies-literature

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Cardiovascular health metrics among South Asian adults in the United States: Prevalence and associations with subclinical atherosclerosis.

Talegawkar Sameera A SA Jin Yichen Y Kandula Namratha R NR Kanaya Alka M AM

Preventive medicine 20161220

South Asians, a fast growing ethnic group in the US, have an increased risk for cardiovascular disease compared to the general population. We examined the prevalence and distribution of the American Heart Association's Life's Simple 7 cardiovascular health (CVH) metrics using data from Mediators of Atherosclerosis in South Asians Living in America (MASALA) study, and cross-sectional associations between number of CVH metrics in the ideal range with subclinical atherosclerosis assessed using coro ...[more]

PMID: 28007496

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Project description:ImportanceIncome disparity between persons with the most resources (the top 20% of earners) and the remainder of the population in the United States has dramatically widened over the past few decades. Given the well-established association between income and health, this increasing income gap may provide insights into the dynamics of cardiovascular disease (CVD) burden among adults in the US.ObjectiveTo quantify the contribution of people in the highest-resources group and the remainder of the population to the burden of CVD, and to estimate the trends in the prevalence of CVD for the 2 groups in the United States from 1999 to 2016.Design, setting, and participantsThis serial cross-sectional analysis used nationally representative data from 9 cycles of the National Health and Nutrition Examination Survey (NHANES) between 1999 and 2016. Survey participants were adults 20 years or older. Statistical analysis of the data was conducted in December 2019.Main outcomes and measuresAge-standardized prevalence of CVD was calculated using the 2010 census estimates. Participants were stratified by income group using the NHANES income to poverty ratio, which was converted into a binary variable: a ratio of 5 or greater for the highest-resources group and a ratio of less than 5 for the remainder of the population.ResultsThis analysis included 44 986 participants. Among the 7926 participants in the highest-resources group, 3290 (50.3%) were in the 40- to 59-year age group and 4094 (51.9%) were men. Among the 37 060 participants in the remainder of the population, 10 840 (34.1%) were in the 40- to 59-year age group and 19 470 (53.2%) were women. The age-standardized prevalence of CVD decreased in the highest-resources group during the study period (1999-2016): angina from 3.4% (n = 24) to 0.3% (n = 5), heart attack from 3.2% (n = 24) to 1.4% (n = 19), congestive heart failure (CHF) from 1.2% (n = 11) to 0.5% (n = 7), and stroke from 1.1% to 1.0% (n = 8). In the remainder of the population, the prevalence of angina decreased from 3.3% (n = 131) in 1999 to 2.6% (n = 118) in 2016 and heart attack from 4.0% (n = 160) in 1999 to 3.6% (n = 201) in 2016. Conversely, an increase was observed in the prevalence of CHF from 2.6% (n = 123) in 1999 to 2.8% (n = 176) in 2016 and stroke from 2.9% (n = 152) in 1999 to 3.2% (n = 178) in 2016. Over time, the odds of reporting angina (odds ratio [OR], 0.80; 95% CI, 0.73-0.87; P < .001), heart attack (OR, 0.91; 95% CI, 0.86-0.97; P = .003), and CHF (OR, 0.90; 95% CI, 0.82-0.99; P = .03) decreased among those in the highest-resources group, while there was no significant change in the odds of reporting stroke (OR, 0.97; 95% CI, 0.90-1.05; P = .43). Among the remainder of the population, the odds of reporting angina (OR, 0.95; 95% CI, 0.92-0.99; P < .05) and heart attack (OR, 0.99; 95% CI, 0.97-1.02; P = .06) decreased over time. Conversely, there was no statistically significant change in the odds of reporting CHF (OR, 1.02; 95% CI, 1.00-1.05; P = .08) and stroke (OR, 1.02; 95% CI, 0.99-1.04; P = .21).Conclusions and relevanceThis study found substantial and increasing disparities in CVD prevalence between the richest and poorest participants in the NHANES from 1999 to 2016, with lower CVD rate reported among the highest-resources group. Additional research into the dynamics of income inequality and health outcomes as well as policy and public health efforts to mitigate this inequality are needed.

Dataset Information

Cardiovascular health metrics among South Asian adults in the United States: Prevalence and associations with subclinical atherosclerosis.

Publications

Cardiovascular health metrics among South Asian adults in the United States: Prevalence and associations with subclinical atherosclerosis.

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