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

OBJECTIVE: 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. DESIGN: 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). SETTING: System of 3 IRHs in the Northeastern United States. PARTICIPANTS: 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). INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: Discharge disposition, LOS, and functional ADL scores. RESULTS: 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). CONCLUSIONS: 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.