To investigate sex differences in the relationship between long-term changes in blood pressure (BP) and cognitive decline in late-life.
Approach:
Study Design: Utilized data from over 4,700 older adults across five longitudinal, community-based cohort studies of aging conducted at the Rush Alzheimer's Disease Center.
Data Collection: Participants underwent annual evaluations including physical and neurological assessments, neuropsychological testing, and medical history reviews.
Eligibility Criteria: Included participants with complete baseline data and at least two measurements of systolic BP (SBP), diastolic BP (DBP), and global cognitive function.
Key Findings:
High blood pressure in midlife and late-life is associated with increased risk of cognitive decline.
Low blood pressure in late-life is also linked to cognitive impairment.
Women have a higher prevalence of hypertension after age 65 and comprise a significant portion of Alzheimer's disease cases.
Interpretation:
The study aims to clarify the complex relationship between BP and cognitive aging by sex, particularly focusing on how simultaneous changes in BP and cognition occur.
Limitations:
Limited studies have investigated sex differences in the relationship between BP and cognition.
Most longitudinal studies have relied on baseline BP to predict future cognition, limiting insights into simultaneous changes.
Conclusion:
Understanding the relationship between BP and cognitive decline could enhance precision medicine and improve patient outcomes.
