Fig. 1
From: Construct validity of the Post-COVID-19 Functional Status Scale in adult subjects with COVID-19
Comparisons of symptoms intensity between subjects with COVID-19 stratified according to the level of impairment in functional status. Figure displays the median as central line, interquartile range as the limits of the box and 10 and 90 percentiles as whiskers. a P < 0.05 compared with Grade 0; b P < 0.05 compared with Grade 1; c P < 0.05 compared with Grade 2; d P < 0.05 compared with Grade 3