ABSTRACT
COVID-19 causes high rates of mortality and morbidity in older adults, especially those with pre-existing conditions. Since epilepsy is associated with premature mortality, we aimed to evaluate in-hospital outcomes, including mortality, in older compared (>65) to younger adults (<65) with COVID-19 and epilepsy. We hypothesized that adults >65 years with epilepsy would have higher mortality despite adjustment for comorbidity. This retrospective study in a large multicenter New York health system included consecutive patients with epilepsy admitted with COVID-19 between 3/15/2020-5/17/2021. Epilepsy was identified using a validated ICD-CM based case definition. Outcomes were level of respiratory support, ICU admission, and mortality. Chi-square tests, Fisher's exact tests, Student's t-tests and Mann-Whitney U or Kolmogorov Smirnov tests were conducted as appropriate. Multivariable logistic regression models were generated to examine factors associated with mortality. We identified 173 older and 161 younger adults with epilepsy and COVID-19. Median age of older (>65) compared to younger (<65) adults was 74 vs. 52 (p<.001). A larger proportion of older adults died in hospital (35.8% vs. 23%, p=.01). Older adults were less likely to be discharged to home (21.4% vs. 38.5%, p<.001) and more likely to go to a chronic care facility (19.7% vs. 10.0%, p<.001). Ventilation status (35.8% vs. 39.8%, p=.45) or ICU admission rate (34.7% vs. 44.1%, p=.08) were not significantly different between the age groups. Older adults had higher odds of mortality after adjusting for sex, race, language and Charlson Comorbidity Index (CCI) (OR, 2.04;95% CI, 1.22-3.40, p=0.01). Within the over 65 group, increasing years of age (OR 1.07;95% CI 1.02-1.12, p=0.01), and increasing CCI score (OR 1.16, 95% CI 1.01-1.32, p=0.03) were associated with in-hospital mortality while sex, race, and language were not. Our study found higher in-hospital mortality in older compared to younger adults with epilepsy diagnosed with COVID-19. Consistent with prior work, increasing age and increasing number of comorbid diseases was associated with increased odds of mortality, reinforcing the need to communicate risks of multimorbidity and COVID-19 in older adults with epilepsy.