Heterogeneity in the Prevalence of Cardiovascular Risk Factors by Ethnicity and Birthplace Among Asian Subgroups: Evidence From the 2010 to 2018 National Health Interview Survey

Background Asian people in the United States have different sociodemographic and health‐related characteristics that might affect cardiovascular disease (CVD) risk by ethnicity and birthplace. However, they are often studied as a monolithic group in health care research. This study aimed to examine heterogeneity in CVD risk factors on the basis of birthplace among the 3 largest Asian subgroups (Chinese, Asian Indian, and Filipino) compared with US‐born non‐Hispanic White (NHW) adults. Methods and Results A cross‐sectional analysis was conducted using the 2010 to 2018 National Health Interview Survey data from 125 008 US‐born and foreign‐born Chinese, Asian Indian, Filipino, and US‐born NHW adults. Generalized linear models with Poisson distribution were used to examine the prevalence and prevalence ratios of self‐reported hypertension, diabetes, high cholesterol, physical inactivity, smoking, and overweight/obesity among Asian subgroups compared with US‐born NHW adults. The study included 118 979 US‐born NHW and 6029 Asian adults who self‐identified as Chinese (29%), Asian Indian (33%), and Filipino (38%). Participants' mean (±SD) age was 49±0.1 years, and 53% were females. In an adjusted analysis, foreign‐born Asian Indians had significantly higher prevalence of diabetes, physical inactivity, and overweight/obesity; foreign‐born Chinese had higher prevalence of physical inactivity, and foreign‐born Filipinos had higher prevalence of all 5 CVD risk factors except smoking compared with NHW adults. Conclusions This study revealed significant heterogeneity in the prevalence of CVD risk factors among Asian subgroups by ethnicity and birthplace, stressing the necessity of disaggregating Asian subgroup data. Providers should consider this heterogeneity in CVD risk factors and establish tailored CVD prevention plans for Asian subgroups.