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Hypertension-Related Cardiovascular Mortality in Asian American Subgroups
Nilay S Shah1, Daichi Shimbo2, Paul Muntner3
1Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois; Department of Preventive Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois.
Insights
Hypertension-related cardiovascular disease mortality varies significantly among Asian American subgroups, with all groups showing higher proportional mortality than non-Hispanic White individuals. This highlights disparities in cardiovascular health outcomes within the Asian American population.
Area of Science:
- Public Health
- Cardiovascular Epidemiology
- Health Disparities
Background:
- Cardiovascular disease (CVD) mortality shows heterogeneity across Asian American subgroups.
- Differences in hypertension-related CVD mortality among these subgroups remain largely unknown.
Purpose of the Study:
- To investigate and compare hypertension-related CVD mortality rates and proportional mortality across diverse Asian American subgroups in the United States.
- To identify variations in mortality risks associated with hypertension within the Asian American population.
Main Methods:
- Utilized US mortality data from 2018-2021, focusing on deaths with CVD as the underlying cause and hypertension as a contributing factor.
- Compared sex-specific, age-standardized mortality rates, proportional mortality, and proportional mortality ratios for non-Hispanic Asian subgroups, Hispanic, and non-Hispanic Black individuals against non-Hispanic White individuals.
Main Results:
- Significant variation in hypertension-related CVD mortality was observed among Asian American subgroups, with up to a two-fold difference.
- All Asian American subgroups exhibited higher proportional mortality for hypertension-related CVD compared to non-Hispanic White individuals.
- Specific subgroup data revealed varying mortality rates, e.g., Filipina females (52.6/100,000) and Filipino males (81.0/100,000) showed higher rates.
Conclusions:
- Hypertension-related CVD mortality is not uniform across Asian American subgroups, indicating significant internal disparities.
- All examined Asian American subgroups face a disproportionately higher burden of mortality from hypertension-related CVD compared to the non-Hispanic White population.
Introduction:
Asian American subgroups experience heterogeneity in cardiovascular disease, but differences in hypertension-related cardiovascular disease mortality between Asian American subgroups is not known.
Methods:
Among 1,194,648 deaths in the United States in 2018-2021 with cardiovascular disease as an underlying cause and hypertension-related diseases as contributing cause, sex-specific age-standardized mortality rates, proportional mortality, and proportional mortality ratios for non-Hispanic Asian and Asian subgroups, Hispanic, and non-Hispanic Black individuals were compared with non-Hispanic White individuals. The analysis was conducted in August 2022.
Results:
There were 37,746; 95,404; 193,899; and 867,599 hypertension-related cardiovascular disease deaths in non-Hispanic Asian; Hispanic; non-Hispanic Black; and non-Hispanic White groups, respectively. Among non-Hispanic Asian females, mortality rates ranged from 41.6 (95% CI 40.0-43.3) per 100,000 population in Japanese to 52.6 (51.0-54.2) per 100,000 in Filipina individuals. Among non-Hispanic Asian males, mortality rates ranged from 45.8 (43.3-48.2) per 100,000 in Korean to 81.0 (78.5-83.5) per 100,000 in Filipino individuals. Proportional mortality was higher for all Asian American subgroups compared to non-Hispanic White individuals. Proportional mortality ratios ranged from 1.11 (in Korean males, proportional mortality was 10.2% [95% CI 9.7-10.8] of all deaths) to 1.38 (in Filipino males, proportional mortality was 12.7% [12.4-13.1] of all deaths; in Chinese females, proportional mortality was 11.9% [11.6-12.3]; and in Filipina females, proportional mortality was 11.9% [12.3-13.0]).
Conclusions:
There was up to two-fold variation in hypertension-related cardiovascular disease mortality among Asian American subgroups. All subgroups experienced higher proportional mortality for hypertension-related cardiovascular disease compared with non-Hispanic White individuals.
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