Epilepsy and COVID-19's Double-Edged Sword: More Severe Disease, Delayed Epilepsy Care

Pandemic Effect on Healthcare Use and Death in Adults with Epilepsy: A Population Study

OBJECTIVES

We conducted a population-based study using Ontario health administrative data to describe trends in healthcare utilization and mortality in adults with epilepsy during the first pandemic year (March 2020-March 2021) compared to historical data (2016-2019). We also investigated if changes in outpatient visits and diagnostic testing during the first pandemic year were associated with increased risk for hospitalizations, emergency department (ED) visits, or death.

METHODS

Projected monthly visit rates (per 100,000 people) for outpatient visits, electroencephalography, magnetic resonance, computed tomography, all-cause ED visits, hospitalizations, and mortality were calculated based on historical data by fitting monthly time series autoregressive integrated moving-average models. Two-way interactions were calculated using Quasi-Poisson models.

RESULTS

In adults with epilepsy during the first quarter of the pandemic, we demonstrated a reduction in all-cause outpatient visits, diagnostic testing, ED visits and hospitalizations, and a temporary increase in mortality (observed rates of 355.8 vs projected 308.8, 95% CI: 276.3-345.1). By the end of the year, outpatient visits increased (85,535.4 vs 76,620.6, 95% CI: 71,546.9-82,059.4), and most of the diagnostic test rates returned to the projected. The increase in the rate of all-cause mortality during the pandemic, compared to pre-pandemic, was greater during months with the lower frequency of diagnostic tests than months with higher frequency (interaction p-values <.0001).

CONCLUSION

We described the impact of the pandemic on healthcare utilization and mortality in adults with epilepsy during the first year. We demonstrated that access to relevant diagnostic testing is likely important for this population while planning restrictions on non-urgent health services.

COVID-19 vaccination status and related process of care outcomes among U.S. adults with active epilepsy-National Health Interview Survey, United States, 2021

Growing research has examined the effects of the COVID-19 pandemic on people with epilepsy. There are no published national estimates of COVID-19 vaccination status among U.S. adults with active epilepsy. The purpose of this study is to use 2021 National Health Interview Survey (NHIS) data to examine select COVID-19-related outcomes by epilepsy status in a nationally representative sample of US adults. The study sample met the criteria for operationalization of epilepsy status (i.e., active epilepsy vs. no epilepsy history) and select questions related to COVID-19 testing, vaccination, delays in care, or experience with virtual care during the COVID-19 pandemic. All analyses accounted for the NHIS complex sample design and response sampling weights. Our study found that in 2021 receipt of one COVID-19 vaccination among U.S. adults with active epilepsy was generally similar to that among adults without a history of epilepsy. By age, adults aged 18-44 years with active epilepsy (27.0%) were significantly less likely to have reported receiving two COVID-19 vaccinations compared with their peers with no epilepsy history (39.1%). Compared to adults with no epilepsy history, adults with active epilepsy reported similar experiences and outcomes regarding COVID-19 testing and obtaining health care during the COVID-19 pandemic. This study provides baseline estimates of select COVID-19 outcomes among US adults with active epilepsy to guide interventions and additional studies.