ArticleFrontiers in public health2026
Association between intrinsic capacity and trajectories of physical function among older adults: findings from a 10-year longitudinal cohort study.
Article in Frontiers in public health, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Objectives: To identify trajectories of basic activities of daily living (BADL) and instrumental activities of daily living (IADL) and determine whether the baseline intrinsic capacity (IC) deficit score predicts 10-year functional decline in older adults. Methods: Data were from the Chinese Longitudinal Healthy Longevity Survey (2008-2018, Results: Two BADL trajectories (high-stable 81.9%; high-declining 18.1%) and three IADL trajectories (mild, moderate, severe decline) were identified. A higher IC deficit score predicted declining BADL (odds ratio [OR] = 1.22, 95% confidence interval [CI]: 1.09-1.37), severe IADL decline (OR = 1.94, 95%CI: 1.66-2.27), and moderate IADL decline (OR = 1.37, 95%CI: 1.22-1.53). Each one-unit increase in the IC deficit score was associated with an additional annual BADL decline of 0.007 points (β = -0.007, 95% CI: -0.010 to -0.003, Conclusion: A higher IC deficit score was associated with adverse physical-function trajectories and a small acceleration in BADL decline. Although the annual effect was unlikely to represent clinically perceptible loss of independence, it may indicate early functional vulnerability.
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