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Updated: Oct 18, 2025

Frailty Assessment in an Aging Mouse Model
Published on: September 23, 2025
Social frailty dimensions and frailty models over time
Bruno Bessa1, Tiago Coelho2, Óscar Ribeiro3
1Institute of Biomedical Sciences Abel Salazar, University of Porto (ICBAS.UP), Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal; Center for Health Technology and Services Research (CINTESIS), Rua Dr. Plácido da Costa, 4200-450, Porto, Portugal.
Social frailty dimensions like loneliness and social support significantly predict frailty in older adults. However, their predictive roles vary depending on the specific frailty assessment tool used.
Area of Science:
- Gerontology
- Social Sciences
- Public Health
Background:
- Social frailty lacks a consensus definition and its role in established frailty models is unclear.
- Understanding social dimensions is crucial for comprehensive frailty assessment in older adults.
Purpose of the Study:
- To analyze the predictive value of social frailty dimensions on distinct frailty models.
- To investigate how different social criteria influence frailty assessment outcomes.
Main Methods:
- A 3-year longitudinal study of 193 community-dwelling adults aged 65+.
- Frailty assessed using Tilburg Frailty Indicator, Groningen Frailty Indicator, and Fried Phenotype criteria.
- Social dimensions (living alone, social network, support, loneliness, activities) analyzed via regression.
Main Results:
- Loneliness and social activity engagement predicted frailty across multiple measures.
- Lack of social support predicted frailty specifically with the Groningen Frailty Indicator.
- Living alone and lack of social relationships did not predict frailty in this cohort.
Conclusions:
- Social dimensions have varying predictive roles in frailty models, necessitating a consensual theoretical basis.
- The impact of social criteria on frailty prediction differs across assessment tools and over time.
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