Fig. 3

Proportions of Barthel indices at indicated time points (0, 28, 90, and 180 days) of patients with COVID-19 ARDS versus non-COVID ARDS. Total dependency: BI 0–20; severe dependency: BI 21–60; moderate dependency: BI 61–90; slight dependency: BI 91–99 and independence BI: 100. [baseline: n = 100 (COVID-19) and n = 43 patients (non-COVID); day 28: n = 92 (COVID-19) and n = 34 (non-COVID); day 90: n = 89 (COVID-19) and n = 34 (non-COVID); day 180: n = 68 (COVID-19) and n = 30 (non-COVID)] ( proposed by Shah et al. [21])