Multi-trajectories of intrinsic capacity and their effect on higher-level functional capacity, life satisfaction, and self-esteem in community-dwelling older adults: the NILS-LSA - 30/11/24
, Chikako Tange a , Shih-Tsung Huang b, c , Sayaka Kubota a , Hiroshi Shimokata a, d , Yukiko Nishita a , Rei Otsuka a, ⁎
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Highlights |
• | Declining intrinsic capacity across domains challenges functional independence, life satisfaction, and self-esteem in older adults. |
• | Four distinct patterns of intrinsic capacity decline were identified in Japanese community-dwelling older adults. |
• | “Vision and cognitive decline” and “comprehensive deterioration” groups showed higher risk of decline in outcomes versus “healthy aging” group. |
• | Findings support multidimensional interventions for specific IC decline patterns, prioritizing both physical and psychological well-being. |
Abstract |
Objectives |
Variability in intrinsic capacity (IC) changes among community-dwelling older adults and their effect on health outcomes remain understudied. We examined the variability in IC trajectories and their impact on higher-level functional capacity (HLFC), life satisfaction, and self-esteem.
Design |
Longitudinal study.
Setting |
Data from the second to seventh waves (2000–2012) of the National Institute for Longevity Sciences–Longitudinal Study of Aging project.
Participants |
934 community dwellers (aged ≥60).
Measurements |
We used group-based multi-trajectory modeling to obtain IC trajectories across six domains: cognition, locomotion, vitality, vision, hearing, and psychological well-being. We employed multivariable regression to investigate the associations between IC trajectories and a decline in HLFC (assessed using the Tokyo Metropolitan Institute of Gerontology Index of Competence [TMIG-IC]; baseline TMIG-IC - follow-up TMIG-IC ≥ 2; logistic regression model), life satisfaction (assessed using the Life Satisfaction Index-K [LSI-K]; linear mixed model), and self-esteem (assessed using the Rosenberg Self-Esteem Scale [RSES]; linear mixed model).
Results |
We identified four IC trajectories: the “healthy aging group” (63.7%), the “hearing decline group” (15.1%), the “vision and cognitive decline group” (12.7%), and the “comprehensive deterioration group” (8.5%). Compared to the healthy aging group, the vision and cognitive decline group and the comprehensive deterioration group displayed a significantly greater risk of a decline in the TMIG-IC score (multivariable-adjusted odds ratio [aOR], 95% confidence interval [CI] = 2.05 [1.11, 3.79], 2.74 [1.41, 5.30], respectively), the LSI-K score (multivariable-adjusted β [standard error] = −0.46 [0.08], −0.52 [0.10], respectively), and the RSES score (multivariable-adjusted β [standard error] = −0.85 [0.16], −0.66 [0.20], respectively). The “hearing decline group” did not show a significantly increased risk for these outcomes.
Conclusion |
Older adults with different IC trajectories may differ in HLFC, life satisfaction, and self-esteem. Public health officials should be aware of this and provide targeted interventions.
Le texte complet de cet article est disponible en PDF.Keywords : Intrinsic capacity, Trajectory, Higher-level functional capacity, Life satisfaction, Self-esteem
Plan
Vol 29 - N° 1
Article 100432- janvier 2025 Retour au numéro
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