Intrinsic capacity transitions predict overall and cause-specific mortality, incident disability, and healthcare utilization
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View abstract on PubMed
Summary
This summary is machine-generated.Maintaining or improving intrinsic capacity (IC) in older adults is linked to significantly lower mortality, disability, and healthcare use. This study developed an IC score to track these vital health transitions.
Area Of Science
- Gerontology and Public Health
- Aging Research
- Health Outcomes
Background
- Intrinsic capacity (IC) is a key determinant of health in older adults.
- Understanding changes in IC over time is crucial for predicting health trajectories.
- Previous research has not fully elucidated the impact of IC transitions on long-term health outcomes.
Purpose Of The Study
- To develop and validate a weighted intrinsic capacity (wIC) score.
- To investigate the association between transitions in IC (improved, stable, worsened) and subsequent health outcomes.
- To examine the impact of IC transitions on all-cause and cause-specific mortality, incident disability, and healthcare utilization in older adults.
Main Methods
- Retrospective cohort study utilizing data from the Taiwan Longitudinal Study on Aging (1999-2003).
- Development of a weighted IC score (wIC) and comparison with a non-weighted IC score (nIC).
- Application of Cox regression and logistic regression models to analyze IC transitions in relation to mortality, disability, and healthcare utilization.
Main Results
- Stable or improved wIC was significantly associated with lower 4-year all-cause mortality and mortality from specific causes (infection, cardiometabolic/cerebrovascular diseases, organ failure).
- Individuals with stable or increased wIC showed reduced risks of incident disability, hospitalization, and emergency department visits.
- Findings were robust and consistent across both weighted (wIC) and non-weighted (nIC) models.
Conclusions
- Maintaining or improving intrinsic capacity is independently associated with better survival and reduced disability in older adults.
- The developed wIC score effectively predicts mortality, disability, and healthcare utilization.
- These findings underscore the importance of interventions aimed at preserving or enhancing intrinsic capacity in the aging population.
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