Table 1 Characteristics of the patients at baseline

Number of patients

Age (median, %95 CI)

Male sex/Female sex

Current/ Ex-smokers/Never smokers

Arterial hypertension

Dyslipidemia

Diabetes mellitus

Depression

Obesity

Hypothyroidism

Chronic heart disease

Cancer

WHO clinical progression scale day1(mean ± SD)

PaO₂/FiO₂ day 1 (median, 95% CI)

C-reactive protein (mg/dL, median, 95% CI)

D-dimer (μg/ml, median,95% CI)

Ferritin (ng/ml, median, 95% CI)

White blood cells (/μL,median,95% CI)

Polymorphonuclear leukocytes (/μL, median, 95% CI)

Lymphocytes (/μL, median, 95% CI)

RDW (%, median, 95% CI)

56

66.0 (60.0 to 70.0)

33 (58.9%)/23 (41.1%)

5 (8.9%)/18 (32.1%)/33 (58.9%)

29 (51.8%)

17 (30.3%)

13 (23.2%)

11 (19.6%)

9 (16.1%)

8 (14.3%)

6 (10.7%)

4 (7.1%)

5.3 ± 0.5

154.5 (130.0 to 165.0)

7.5 (4.7 to 9.6)

0.82 (0.61 to 1.18)

765.0 (545.5 to 1191.9)

6190.0 (5467.9 to 6882.2)

5120.0 (4319.9 to 5688.0)

735.0 (654.0 to 818.0)

14.2 (13.5 to 14.4)

58

66.5 (62.1 to 72.0)

36 (62.1%)/22 (37.9%)

10 (17.2%)/ 13 (22.4%)/35 (60.3%)

25 (43.1%)

7 (12.1%)

14 (24.1%)

6 (10.3%)

6 (10.3%)

6 (10.3%)

11 (18.9%)

6 (10.3%)

5.1 ± 0.5

157.0 (131.9 to 162.9)

8.5 (6.5 to 11.5)

0.84 (0.65 to 1.19)

644.5 (493.3 to 837.1)

5915.0 (5400.0 to 7657.2)

4565.0 (3936.7 to 5857.0)

815.0 (692.7 to 920.0)

14.0 (13.4 to 15.1)

NA

0.51

0.72

0.19/0.25/0.88

0.35

0.02

0.91

0.16

0.36

0.52

0.22

0.55

0.75

0.69

0.09

0.80

0.43

0.84

0.75

0.13

0.21