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Epilepsy and mortality: a record linkage study in a U.K. population
Christopher Ll Morgan1, Michael P Kerr
1Welsh Centre for Learning Disabilities (Clinical Studies), Department of Psychological Medicine, University of Wales College of Medicine, Cardiff, Wales, UK. MorganCL@cf.ac.uk
Epilepsia
|October 9, 2002
Summary
People with epilepsy face significantly higher mortality rates compared to the general population. Common causes of death, including cancer and cerebrovascular diseases, are elevated in epilepsy patients.
Area of Science:
- Neurology
- Public Health
- Epidemiology
Background:
- Epilepsy affects a significant portion of the population.
- Understanding mortality patterns in epilepsy is crucial for public health initiatives.
Purpose of the Study:
- To investigate and compare mortality patterns in individuals with epilepsy versus those without.
- To identify specific causes of death contributing to increased mortality in the epilepsy population.
Main Methods:
- Cross-sectional record linkage using electronic death registers and epilepsy patient registers.
- Data collected from routine health sources in Cardiff and Vale of Glamorgan, Wales, U.K. (1991-1997).
- Analysis of deaths recorded between 1993 and 1996.
Main Results:
- 352 deaths in epilepsy patients (2.0% of total deaths).
- Crude mortality rates: 36.2 per 1,000 for epilepsy vs. 9.9 per 1,000 for non-epilepsy.
- Standardized Mortality Ratio (SMR) of 2.14 for epilepsy patients.
- Cancer was the leading cause of death (18.8%), with an SMR of 1.47.
- Excess mortality observed for cerebrovascular, digestive, and respiratory diseases.
Conclusions:
- Individuals with epilepsy exhibit increased overall mortality.
- Primary causes of death in epilepsy mirror general population trends but are exacerbated.
- Underlying conditions related to epilepsy also contribute significantly to mortality.