Immigrant Status and Cardiovascular Risk over Time: Results From the Multi-Ethnic Study of Atherosclerosis
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Purpose: Despite cross-sectional evidence that foreign-born United States (US) residents often have better health than US-born residents of similar race and/or ethnicity, we know little about overall cardiovascular risk progression over time among immigrants as they age in the US.
Methods: Using longitudinal data from the Multiethnic Study of Atherosclerosis on 6446 adults aged 45-84 years at baseline, we examined how nativity and length of US residence related to change in cardiovascular health (CVH) and cardiovascular event incidence over 11-year follow-up. CVH was measured using the American Heart Association's CVH measure (range, 0-14; higher is better).
Results: Immigrants, particularly those with shorter US residence, had better baseline CVH and lower cardiovascular event incidence than the US born. Baseline CVH scores ranged from 8.67 (8.42-8.92) among immigrants living in the US less than 10 years to 7.86 (7.76-7.97) among the US born. However, recent immigrants experienced the largest CVH declines over time: 10-year declines ranged from -1.04 (-1.27 to -0.80) among immigrants living in the US less than 10 years at baseline to -0.47 (-0.52 to -0.42) among the US born.
Conclusions: Public health prevention efforts targeting new immigrants may help slow the deterioration of CVH and reduce future cardiovascular risk.
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