Laboratory data

On admission

Lymphocytes count, median (IQR) (per mm3)

980 (565 - 1455)

D-dimer, median (IQR) (mg/L)

2975 (1490 - 7112)

Ferritin, median (IQR) (ng/mL)

1135 (547 - 2023)

LDH, median (IQR) (IU/L)

560 (381 - 766)

C-reactive protein, median (IQR) (mg/L)

173 (99 - 243)

Procalcitonin, median (IQR) (ng/mL)

0.31 (0.13 - 0.71)

PaO2:FiO2 ratio, median (IQR)

86 (70 - 130)

During the first 3 days

Lowest lymphocytes count, median (IQR) (per mm3)

810 (655 - 1035)

Highest D-dimer level, median (IQR) (mg/L)

3225 (289 - 9992)

Highest ferritin level, median (IQR) (ng/mL)

1416 (688 - 1940)

Highest LDH level, median (IQR) (IU/L)

560 (381 - 766)

Highest C-reactive protein level, median (IQR) (mg/L)

175 (111 - 253)

Highest procalcitonin level, median (IQR) (ng/mL)

2 (0.38 - 3.85)

Lowest PaO2:FiO2 ratio, median (IQR)

86 (70 - 130)

On day 7

Lymphocytes count, median (IQR) (per mm3)

763 (570 - 1540)

D-dimer level, median (IQR) (mg/L)

4045 (2752 - 9877)

Ferritin level, median (IQR) (ng/mL)

1325 (734 - 1940)

LDH, median (IQR) (IU/L)

402 (271 - 507)

C-reactive protein level, median (IQR) (mg/L)

98 (52 - 170)

Procalcitonin level, median (IQR) (ng/mL)

0,59 (0.18 - 4.25)

PaO2:FiO2 ratio, median (IQR)

98 (78 - 148)

Chest CT scan (%)

Ground glass opacification <25%

10

Ground glass opacification 25% - 49%

16

Ground glass opacification 50% - 74%

37

Ground glass opacification 75% - 100%

37

Pleural effusion

0