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The icope Intrinsic Capacity Screening Tool: Measurement Structure and Predictive Validity of Dependence and
Á Rodríguez-Laso1, F J García-García, L Rodríguez-Mañas
1Leocadio Rodríguez-Mañas, Geriatric Department, Hospital Universitario de Getafe, Ctra de Toledo Km12,5. 28905 Getafe. Madrid, Spain, Phone number: (34) 916839360 (ext. 6412), leocadio.rodriguez@salud.madrid.org.
The Journal of Nutrition, Health & Aging
|November 14, 2023
Summary
The International Classification of Primary Care (ICPC) screening tool (IST) for intrinsic capacity needs refinement, particularly its cognitive domain. A global IST score does not predict adverse health outcomes better than its individual components.
Area of Science:
- Gerontology
- Public Health
- Epidemiology
Background:
- Intrinsic capacity is crucial for healthy aging.
- The International Classification of Primary Care (ICPC) screening tool (IST) assesses intrinsic capacity in older adults.
- Evaluating the IST's measurement structure and predictive validity is essential for its clinical application.
Purpose of the Study:
- To assess the measurement structure of the ICPC screening tool (IST).
- To determine if the IST as a global measure predicts adverse health outcomes (dependence, hospitalization) better than its individual domains.
- To evaluate the IST's utility in community-dwelling older populations.
Main Methods:
- Secondary analysis of the Toledo Study of Healthy Ageing cohort.
- Structural Equation Modeling (SEM) used to evaluate the IST's measurement structure and predictive associations.
- Analysis included 1032 community-dwelling older adults over a three-year period.
Main Results:
- The IST's sensory and cognitive domains required item pruning due to poor measurement properties.
- The global IST score did not significantly predict dependence or hospitalization.
- The mobility domain was significantly associated with dependence for basic and instrumental activities.
Conclusions:
- The cognitive domain of the IST may require reformulation.
- A global IST score does not enhance predictive power over individual domains.
- Confirmatory assessment of IST findings is recommended, aligning with the WHO's ICOPE strategy.
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