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Frailty Assessment in an Aging Mouse Model
Published on: September 23, 2025
104
Cognitive frailty predicting death and disability in Chinese elderly
Yajun Ma1, Xiaodong Li1, Yan Pan1
1Department of Neurology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China.
Neurological Research
|July 27, 2021
Summary
Cognitive frailty (CF), combining cognitive impairment and physical frailty, significantly predicts mortality and disability in older Chinese adults. This combined model offers valuable insights for geriatric health outcomes.
Area of Science:
- Gerontology and Aging Research
- Cognitive Impairment Studies
- Public Health and Epidemiology
Background:
- Cognitive frailty (CF) is linked to adverse health outcomes, but various models exist.
- Understanding CF's impact is crucial for geriatric care and public health strategies.
Purpose of the Study:
- To investigate the predictive validity of a combined cognitive frailty (CF) model.
- To assess risks of mortality and activities of daily living (ADL) disability in elderly Chinese subjects.
Main Methods:
- Utilized data from the Rugao Longevity and Aging Study.
- Assessed physical frailty (PF) using the modified Frailty Phenotype and cognitive impairment (CoI) via the Revised Hasegawa dementia scale (HDS-R).
- Defined CF as co-existing PF and CoI (HDS-R score >10), excluding severe CoI.
Main Results:
- Prevalence of CF was 2.9% at baseline.
- CF was associated with a 2.94-fold increased risk of 3-year mortality.
- CF demonstrated a 10.48-fold higher risk of incident ADL disability over 3 years.
Conclusions:
- The proposed CF model, integrating HDS-R and Frailty Phenotype, effectively predicts 3-year all-cause mortality.
- This CF model also shows predictive validity for new-onset ADL disability in the elderly Chinese population.
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