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Table 1 Clinical characteristics of the COVID-19 patients included. Results of continuous variables are expressed as median and minimum and maximum. Categorical variables are expressed as frequency (percentage). SOFA sequential organ failure assessment, ICU intensive care unit, ECMO extracorporeal membrane oxygenation, AKI acute kidney injury, CRRT continuous renal replacement therapy, IRR intermittent renal replacement, CKD chronic kidney disease, ICU-LOS Length of ICU stay, HOSP-LOS Length of hospital stay

From: COVID-19: Up to 82% critically ill patients had low Vitamin C values

Clinical characteristics COVID-19 with ARDS (n = 67)
Age (median, min–max, years) 60 (31 – 76)
Male (n, %) 50 (75)
SOFA score (median, min–max, points) 9 (2 – 17)
Intubation (n, %) 49 (73.1)
Prone position (n, % respect of intubation) 40 (81.6)
VV-ECMO (n, %) 3 (4.5)
VA-ECMO (n, %) 1 (1.5)
Noradrenaline (n, %) 40 (59.7)
Dobutamine (n, %) 6 (9)
CKD (n, %) 6 (9)
AKI (n, %) 22 (32.8)
CRRT (n, %) 3 (4.5)
IRR (n, %) 2 (3)
Bacterial superinfection (n, %) 23 (34.3)
ICU-LOS (median, min–max, days) 12 (1 -90)
HOSP-LOS (median, min–max, days) 25 (1 – 101)
Mortality (n, %) 15 (22.4)