[Blood pressure level, hypertension prevalence and control status in oldest old in China]

Area of Science:

• Gerontology
• Cardiovascular Health
• Public Health

Background:

• The oldest old (≥80 years) represent a rapidly growing demographic in China.
• Understanding their cardiovascular health, particularly hypertension, is crucial for targeted interventions.
• Limited data exists on hypertension prevalence and control in this specific age group within China.

Purpose of the Study:

• To investigate blood pressure levels in China's oldest old.
• To determine the prevalence and control status of hypertension in this population.
• To identify factors associated with blood pressure and hypertension control.

Main Methods:

• Utilized data from the 2014 Chinese Longitudinal and Health Longevity Study (CLHLS).
• Analyzed a cross-sectional sample of 4,587 individuals aged 80 years and older.
• Assessed blood pressure, hypertension prevalence, awareness, and control rates.

Main Results:

• Mean systolic blood pressure was 139.5 mmHg and diastolic blood pressure was 79.6 mmHg.
• Hypertension prevalence was 56.5%, with an awareness rate of 52.2% and a control rate of 11.5%.
• Age, gender, BMI, residence, and living area influenced blood pressure and hypertension control.

Conclusions:

• Hypertension is common in China's oldest old, with high prevalence and low control rates.
• Blood pressure characteristics differ from younger Chinese adults but resemble younger elderly populations.
• Demographic and lifestyle factors are significantly associated with hypertension status in this population.