In 2016, Medicaid and Medicare paid about 65% of all inpatient hospitalization costs for all-age persons hospitalized with epilepsy as the principal diagnosis

Abstract

The purpose of this study was to examine both the distribution of payers for inpatient hospitalizations (all-ages) by principal diagnosis status (epilepsy versus nonepilepsy) and selected organizational- and community-level factors associated with hospitalizations using the Agency for Healthcare Research and Quality's (AHRQ) Healthcare Utilization Project 2016 National Inpatient Sample (NIS) database. We compared cases with epilepsy (any ICD-10CM diagnostic code beginning with “G40”) as a principal diagnosis (“epilepsy discharges”) versus cases without epilepsy as the principal diagnosis (“nonepilepsy discharges”). Accounting for the complex survey design, we examined how the principal payer source, median income for Zip Code, admission type, hospital location, teaching status, and hospital region varied by principal diagnosis status. For persons of all ages with epilepsy as a principal diagnosis, Medicaid and Medicare public insurance paid for about 65% of inpatient hospitalization costs. The percentage paid by Medicaid among epilepsy discharges (31.6%) significantly exceeded that among nonepilepsy discharges (23.1%). The percentage paid by Medicare among epilepsy discharges (33.9%) was significantly less than that among nonepilepsy discharges (39.7%), as was payment by private insurers (26.1% vs. 30.1%). Median Zip Code income, hospital and admission characteristics, and geographic region differed between hospitalizations with epilepsy versus those with a nonepilepsy discharge. These findings may be used to inform stakeholders’ understanding of epilepsy care-related costs and factors associated with hospitalizations for improved interventions and programs.