Hayami Koga

Jul 24, 2024 | jamanetwork.com | Hayami Koga |JoAnn E. Manson |Joann Manson |Laura D. Kubzansky

Limitations for Assessing Optimism and Physical Functioning in Women—Reply In Reply We thank Cheung et al for their thoughtful letter and the opportunity to discuss some of the limitations of our study.1 Cheung and colleagues suggest that determining optimism based on initial levels of optimism may be biased as levels of optimism may change over time.

Mar 20, 2024 | jamanetwork.com | Hayami Koga |David Williams |JoAnn E. Manson |Joann Manson |Hilary A. Tindle

Key PointsQuestion  Is optimism associated with age-related changes in performance-based measures of physical functioning? Findings  In this cohort study that included 5930 postmenopausal women, at baseline, higher optimism was associated with higher grip strength and number of chair stands but not with the time it took to walk 6 m.