Abstract P109: HDL Cholesterol Confers Exceptionally Strong Cardioprotective and Metabolic Effects in Native Hawaiian and Pacific Islander Populations

Abstract

Relative to the general population, Native Hawaiian and Pacific Islander (NHPI) communities are significantly more prone to obesity, diabetes, and heart disease. Our population-based longitudinal study focuses on HDL cholesterol levels and cardiovascular risk among NHPI and other (comparison) populations. Given the importance of health disparities in cardiovascular disease among the people of Hawai'i, this study holds considerable importance for establishing more diverse, equitable, and inclusive healthcare and precision medicine approaches. Specifically, we communicate a novel data-driven finding, revealed from a statistical and machine learning analysis of epidemiological data from the NIH All of Us Research Program, showing that the cardioprotective effect of high-density lipoprotein (HDL) cholesterol is significantly stronger in NHPI populations relative to other racial/ethnic demographics (including White, Black, and Hispanic/Latinx communities). Our results indicate that: 1) the cardioprotective effect of HDL against coronary artery disease (CAD), acute myocardial infarction (MI), and major adverse cardiovascular events (MACE), is much more powerful in NHPI populations compared to any other racial/ethnic groups currently represented in All of Us . 2) HDL has an exceptionally strong negative relationship with Type II diabetes (T2D) incidence in NHPI populations, which is also significantly stronger than in other ethnicities. In NHPI populations, these results suggest that an additional emphasis ought to be placed on the cardiac and metabolic-protective effect of HDL level as a key biomarker/risk factor in physicians’ assessment of cardiometabolic disease risk. These cardiovascular health equity findings highlight the importance of more and improved diversity, equity, and inclusion efforts to adequately serve growing subpopulations of historically underrepresented groups such as NHPIs within the US healthcare system.