Ethnic Disparities in Blood Pressure: A Population-based Study

Area of Science:

• Public Health
• Epidemiology
• Cardiovascular Disease Research

Background:

• Taiwan's indigenous population faces higher cardiovascular disease mortality.
• Existing research lacks data on ethnic variations in blood pressure (BP) within this group.
• Understanding BP differences is crucial for targeted public health interventions.

Purpose of the Study:

• To investigate the association between ethnicity and blood pressure levels in Taiwan.
• To analyze how gender modifies the relationship between ethnicity and BP.
• To explore additive effects of ethnicity and age on BP by gender.

Main Methods:

• A population-based study utilizing randomly selected representative samples.
• Measurements included height, weight, hip and waist circumferences, and blood pressure (BP).
• Multivariate analysis was performed, adjusting for relevant covariates.

Main Results:

• Systolic BP and diastolic BP were significantly higher in the indigenous population compared to Han Chinese.
• A higher prevalence of high diastolic BP (>90 mmHg) was observed in indigenous women (32.9%) versus Han Chinese women (17.4%).
• Gender and ethnicity were significant correlates of both systolic and diastolic BP, with gender acting as a modifier.

Conclusions:

• Significant independent additive effects of ethnicity and age on systolic and diastolic BP were identified, varying by gender.
• These findings highlight the importance of considering ethnicity and gender in understanding and managing hypertension in Taiwan.
• The study underscores the need for culturally sensitive cardiovascular disease prevention strategies for indigenous populations.