Trends in Cardiovascular Disease by Asian American, Native Hawaiian, and Pacific Islander Ethnicity, Medicare Health Outcomes Survey 2011–2015

2021  Journal Article

Trends in Cardiovascular Disease by Asian American, Native Hawaiian, and Pacific Islander Ethnicity, Medicare Health Outcomes Survey 2011–2015

Pub TLDR

Are there different rates of heart problems and risk factors for heart problems among the various smaller groups within the broader categories of older Asian Americans and Native Hawaiian/Pacific Islanders (NH/PI)?

DOI: 10.1093/gerona/glab262    PubMed ID: 34491324
 

College of Health researcher(s)

Abstract

Background

The burden of cardiovascular disease (CVD) is increasing in the aging population. However, little is known about CVD risk factors and outcomes for Asian American, Native Hawaiian, and Other Pacific Islander (NH/PI) older adults by disaggregated subgroups.

Methods

Data were from the Centers for Medicare and Medicaid Services 2011–2015 Health Outcomes Survey, which started collecting expanded racial/ethnic data in 2011. Guided by Andersen and Newman’s theoretical framework, multivariable logistic regression analyses were conducted to examine the prevalence and determinants of CVD risk factors (obesity, diabetes, smoking status, hypertension) and CVD conditions (coronary artery disease [CAD], congestive heart failure [CHF], myocardial infarction [MI], other heart conditions, stroke) for 10 Asian American and NH/PI subgroups and White adults.

Results

Among the 639 862 respondents, including 26 853 Asian American and 4 926 NH/PI adults, 13% reported CAD, 7% reported CHF, 10% reported MI, 22% reported other heart conditions, and 7% reported stroke. CVD risk factors varied by Asian American and NH/PI subgroup. The prevalence of overweight, obesity, diabetes, and hypertension was higher among most Asian American and NH/PI subgroups than White adults. After adjustment, Native Hawaiians had significantly greater odds of reporting stroke than White adults.

Conclusions

More attention should focus on NH/PIs as a priority population based on the disproportionate burden of CVD risk factors compared with their White and Asian American counterparts. Future research should disaggregate racial/ethnic data to provide accurate depictions of CVD and investigate the development of CVD risk factors in Asian Americans and NH/PIs over the life course.

Đoàn, L.N., Takata, Y., Hooker, K., Mendez-Luck, C.A., Irvin, V.L. (2021) Trends in Cardiovascular Disease by Asian American, Native Hawaiian, and Pacific Islander Ethnicity, Medicare Health Outcomes Survey 2011–2015The Journals of Gerontology: Series A, Biological sciences and medical sciences77(2)
 
Publication FAQ

Frequently Asked Questions: Cardiovascular Disease Trends in Older Asian American and Native Hawaiian/Pacific Islander Adults

Why is it important to study cardiovascular disease (CVD) in disaggregated Asian American and Native Hawaiian/Pacific Islander (NH/PI) subgroups?

Research often aggregates data for Asian Americans and NH/PIs, despite these being distinct racial categories encompassing over 40 communities with diverse origins, languages, and political statuses. This aggregation masks significant variations in CVD risk factors and outcomes among subgroups, hindering the development of targeted prevention and intervention strategies. Understanding these differences is crucial for accurate depictions of health, appropriate guidelines, and effective interventions to address health disparities.

What were the main findings regarding CVD risk factors among the studied populations?

The study revealed significant variations in CVD risk factors among Asian American and NH/PI subgroups compared to White adults. Most Asian American subgroups had a higher prevalence of overweight/obesity, diabetes, and hypertension but lower smoking rates than White adults. NH/PI adults, overall, experienced a greater burden of obesity, diabetes, hypertension, and smoking compared to both White and Asian American adults. Notably, there were also differences within the Asian American and NH/PI categories, highlighting the importance of disaggregated data.

How did the prevalence of CVD conditions differ among the various racial and ethnic groups?

Compared to White men, most Asian American men reported lower rates of CVD conditions (coronary artery disease, congestive heart failure, myocardial infarction, other heart conditions, and stroke). However, some exceptions existed, such as higher CAD and MI among Asian Indian men and higher rates of some conditions among Multiple-race Asian men. Asian American women generally had lower CVD prevalence than White women, with some exceptions like higher stroke rates in Vietnamese and Multiple-race Asian women. Native Hawaiian men reported higher rates of CHF, MI, other heart conditions, and stroke compared to White men, while Other Pacific Islander men had higher rates of CHF and stroke. NH/PI women also reported higher rates of most CVD conditions and stroke than White women.

Were there specific subgroups within the Asian American and NH/PI populations that showed a particularly high burden of CVD risk factors or conditions?

Yes, the study identified several subgroups with a high burden. Filipino men and women had the highest prevalence of overweight/obesity and hypertension among Asian Americans. Asian Indian men and women had the highest prevalence of diabetes within the Asian American group. Native Hawaiians exhibited high rates of obesity, diabetes, smoking, hypertension, high cholesterol, and a greater likelihood of stroke compared to White adults. Other Pacific Islanders also showed elevated rates of several CVD risk factors and conditions.

How might cultural, socioeconomic, and political factors contribute to the observed disparities in CVD?

The study suggests that predisposing characteristics (like race/ethnicity and age), enabling resources (like income and insurance), and need characteristics (like health status and contextual factors) play a role. Asian American and NH/PI populations often face unique challenges related to immigration history, acculturation, political status, and experiences of discrimination and institutional racism, which can impact their socioeconomic status, access to quality healthcare, and health behaviors, ultimately influencing their risk for CVD.

How does the study address the "model minority" stereotype regarding Asian Americans and health?

The findings challenge the "model minority" stereotype by demonstrating that many Asian American subgroups, despite often being perceived as healthier and more affluent, face a significant burden of CVD risk factors and some CVD conditions. The study also highlights that many Asian American and NH/PI older adults reported lower levels of education and income, and greater reliance on Medicare/Medicaid, further refuting the stereotype of universal high socioeconomic status within these communities.

What were the limitations of the study and what implications do they have for future research?

The study's limitations include its cross-sectional design, reliance on self-reported data (potentially subject to recall bias), limited language options in the survey, and the use of broad CVD categories. Additionally, the focus on Medicare Advantage enrollees aged 65 and older may not represent younger individuals or those with different insurance status. Future research should aim for longitudinal studies, utilize more detailed clinical data, include broader language options, oversample underrepresented subgroups, and explore the impact of acculturation and racism more thoroughly to gain a deeper understanding of CVD disparities.

What are the key conclusions and recommendations based on the findings?

The study concludes that there are significant disparities in CVD risk factors and conditions among disaggregated Asian American and NH/PI older adults, with NH/PI populations facing a particularly high burden. It recommends that more attention and resources should be directed towards NH/PI communities as a priority population. Furthermore, the study underscores the critical need for the consistent collection and reporting of disaggregated racial and ethnic health data to accurately identify high-risk subgroups and to develop culturally and linguistically relevant health promotion and intervention efforts that address the multilevel social determinants of health to achieve health equity.