Measuring Discharge Outcomes, Length of Stay, and Functional ADL Score During COVID-19 in Inpatient Rehabilitation Hospitals.

Abstract

To measure discharge disposition, length of stay (LOS), and functional activities of daily living (ADL) scores for patients admitted to acute inpatient rehabilitation hospitals (IRHs) during the coronavirus disease 2019 (COVID-19) pandemic and to compare these parameters with a period prior to the pandemic. Retrospective cohort study via systematic retrospective chart review of consecutive patients admitted to IRHs from January 1-February 19, 2020 (pre-COVID-19T), and COVID-19 time period/patients admitted from April 1, 2020-May 9, 2020 (COVID-19T). System of 3 IRHs in the Northeastern United States. Pre-COVID-19T, n=739; COVID-19T, n=335, of whom n=139 were positive for COVID-19 (COVID+) and n=196 were negative (COVID-) (N=1074). Not applicable. Discharge disposition, LOS, and functional ADL scores. COVID-19T patients were younger (P=.03) and less likely to be White (P=.03). These patients also had a higher case mix index (CMI; P<.01), longer acute care LOS (P<.01), and longer IRH LOS (P<.01). Patients who were COVID+ (during COVID-19T) were less likely to be White (P<.01), had lower CMI (P<.01), had higher admission and discharge functional ADL scores (P=.02, P<.01), and had longer acute care LOS compared with those who were COVID- (P<.01). There were no differences in discharge outcomes between pre-COVID-19T and COVID-19T cohorts (P=.75), including when stratified for COVID-19 status (P=.74). Functional ADL scores on admission and discharge were lower in COVID-19T than in pre-COVID-19T (P=.01), including when stratified for COVID-19 status though not significant (P=.06). There were no differences in discharge outcomes for any group. IRH LOS was significantly increased during the pandemic, but there were no statistically significant differences between the COVID+ and COVID- cohorts within COVID-19T. Functional ADL scores were significantly lower during COVID-19T, but COVID status was not a significant predictor. This suggests that COVID+ status was not a barrier to discharge or functional outcomes. This supports the importance of IRHs to restore function and discharge patients to home, even with a more medically complex COVID-19 pandemic population.