Self-Reported Energy Trajectories Predict Adverse Health Outcomes in Older Adults. (16th December 2020)

• Record Type: Journal Article
• Authors: Sprague, Briana; Zhu, Xiaonan; Ehrenkranz, Rebecca; Tian, Qu; Gmelin, Theresa; Glynn, Nancy; Rosso, Andrea; Rosano, Caterina
• Is Part Of: Innovation in aging. Volume 4(2020)Supplement 1
• Page Start: 794
• Page End: 795
• Publication Date: 2020-12-16
• Subjects: Aging -- Periodicals; Gerontology -- Periodicals; 612.67
• DOI: 10.1093/geroni/igaa057.2880
• Languages: English
• ISSNs: 2399-5300

Abstract

Abstract: Declining energy may indicate homeostatic dysregulation and predict adverse health outcomes. We hypothesized that declining energy would predict greater frailty (1-10), greater mortality, and faster mood (CES-D) and cognition (3MS) decline over time. This observational cohort studies included 2, 443 older adults (mean age=74.6, 62.5% White, 47.8% men) from the Health ABC Study with up to eight years of data. Energy was assessed using a single-item question about prior month's energy (baseline mean=6.7, SD=1.7, range=0–10, lower=less energy). We used linear mixed models to create energy change scores (mean=-.07 points/year, SD=.05, range=-0.32-0.21, negative=decreased energy). In regression models adjusting for baseline outcome performance and energy and demographics, declining energy predicted greater frailty (β=-2.72, 95%CI = -3.39, -2.06), greater mortality (hazard ratio=.07, p<.001), and faster CES-D (β=-.93, 95%CI=-1.10, -0.75) but not 3MS decline. Energy changes are easy to assess and predict clinically-relevant outcomes. Future work should consider mechanisms of declining energy on disability-related outcomes. Part of a symposium sponsored by Brain Interest Group.