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Relation of modifiable lifestyle and mood factors to cognitive concerns among participants and their study partners in the A4 screen data
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Relation of modifiable lifestyle and mood factors to cognitive concerns among participants and their study partners in the A4 screen data
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Relation of modifiable lifestyle and mood factors to cognitive concerns among participants and their study partners in the A4 screen data
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Journal Article
Relation of modifiable lifestyle and mood factors to cognitive concerns among participants and their study partners in the A4 screen data
2023
Overview
Introduction Subjective cognitive decline (SCD) has been associated with elevated amyloid levels and increased risk of future cognitive decline, as well as modifiable variables, including depression, anxiety, and physical inactivity. Participants generally endorse greater and earlier concerns than their close family and friends (study partners [SPs]), which may reflect subtle changes at the earliest stages of disease among participants with underlying neurodegenerative processes. However, many individuals with subjective concerns are not at risk of Alzheimer's disease (AD) pathology, suggesting that additional factors, such as lifestyle habits, may be contributory. Methods We examined the relation between SCD, amyloid status, lifestyle habits (exercise, sleep), mood/anxiety, and demographic variables among 4481 cognitively unimpaired older adults who are being screened for a multi‐site secondary prevention trial (A4 screen data; mean ±SD: age = 71.3 ±4.7, education = 16.6 ±2.8, 59% women, 96% non‐Hispanic or Latino, 92% White]. Results On the Cognitive Function Index (CFI) participants endorsed higher concerns compared to SPs. Participant concerns were associated with older age, positive amyloid status, worse mood/anxiety, lower education, and lower exercise, whereas SP concerns were associated with older participant age, male gender of participant, positive amyloid status of participant, and worse participant‐reported mood/anxiety. Discussion Findings suggest that modifiable/lifestyle factors (e.g., exercise, education) may be associated with participant concerns among cognitively unimpaired individuals and highlight the importance of further examining how modifiable factors impact participant‐ and SP‐reported concerns, which may inform trial recruitment and clinical interventions.
