Post-COVID-19 patients in geriatric rehabilitation substantially recover in daily functioning and quality of life

Abstract Background After an acute infection, older persons may benefit from geriatric rehabilitation (GR). Objectives This study describes the recovery trajectories of post-COVID-19 patients undergoing GR and explores whether frailty is associated with recovery. Design Multicentre prospective cohort study. Setting 59 GR facilities in 10 European countries. Participants Post-COVID-19 patients admitted to GR between October 2020 and October 2021. Methods Patients’ characteristics, daily functioning (Barthel index; BI), quality of life (QoL; EQ-5D-5L) and frailty (Clinical Frailty Scale; CFS) were collected at admission, discharge, 6 weeks and 6 months after discharge. We used linear mixed models to examine the trajectories of daily functioning and QoL. Results 723 participants were included with a mean age of 75 (SD: 9.91) years. Most participants were pre-frail to frail (median interquartile range CFS 6.0 5.0–7.0) at admission. After admission, the BI first steeply increased from 11.31 with 2.51 (SE 0.15, P 0.001) points per month and stabilised around 17.0 (quadratic slope: −0.26, SE 0.02, P 0.001). Similarly, EQ-5D-5L first steeply increased from 0.569 with 0.126 points per month (SE 0.008, P 0.001) and stabilised around 0.8 (quadratic slope: −0.014, SE 0.001, P 0.001). Functional recovery rates were independent of frailty level at admission. QoL was lower at admission for frailer participants, but increased faster, stabilising at almost equal QoL values for frail, pre-frail and fit patients. Conclusions Post-COVID-19 patients admitted to GR showed substantial recovery in daily functioning and QoL. Frailty at GR admission was not associated with recovery and should not be a reason to exclude patients from GR.