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Associations and Potential Biological Pathways Between Physical Frailty and Epilepsy Incidence: A Large-Scale
Wei Hu1, Tian-Shu Liu1, Ge Tian1
1From the Department of Epidemiology, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, China.
Neurology
|May 14, 2026
Summary
Physical frailty increases the risk of developing epilepsy. Biomarkers related to organ function, inflammation, and metabolism may explain this link, offering new insights into epilepsy prevention.
Area of Science:
- Neurology
- Gerontology
- Biomarkers
Background:
- Physical frailty is linked to various neurologic disorders.
- The association between physical frailty and epilepsy is not well-established.
Purpose of the Study:
- To investigate the prospective association between physical frailty and incident epilepsy.
- To explore potential biological pathways underlying the frailty-epilepsy relationship.
Main Methods:
- Prospective cohort study of 421,383 UK Biobank participants.
- Frailty assessed using a modified Fried frailty phenotype model.
- Incident epilepsy identified via health records; Cox proportional hazard models used.
Main Results:
- Physical frailty was associated with a significantly higher incidence of epilepsy (HR 1.81 for frail vs. nonfrail).
- Specific frailty components like slow gait speed and exhaustion were linked to increased epilepsy risk.
- Biomarker analyses indicated roles for liver/kidney function, inflammation, endocrine activity, and metabolic factors.
Conclusions:
- Physical frailty is a significant risk factor for developing epilepsy.
- Biological pathways involving organ function, inflammation, and metabolism may mediate the link between frailty and epilepsy.
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