Table 2 Laboratory data on admission and treatments during hospitalization.

From: The U-shaped association of serum iron level with disease severity in adult hospitalized patients with COVID-19

Laboratory data on admission

WBC count (/μL)

6040 (4325–8115)

5360 (3720–7080)

5750 (3925–7965)

7600 (6050–11,060)

< 0.0001*

Neutrophil count (/μL)

4603 (2852–6331)

3692 (2422–5411)

4070 (2604–5789)

6445 (4956–9665)

< 0.0001*

Lymphocyte count (/μL)

834 (579–1109)

1026 (789–1527)

788 (623–934)

612 (270–809)

< 0.0001*

Platelet count (× 1000/μL)

188 (142–243)

193 (151–247)

165 (123–217)

208 (152–270)

0.048*

Hemoglobin (g/dL)

13.6 (12.0–15.0)

14 (13.2–15.4)

13.6 (11.5–17.8)

13.1 (11.7–14.8)

0.050*

D-dimer (μg/mL)

1.2 (1.0–1.6)

1.06 (0.86–1.41)

1.27 (1.04–2.06)

1.24 (1.15–1.47)

0.014*

CRP (mg/dL)

4.1 (0.9–9.3)

1.3 (0.3–4.5)

5.6 (1.7–10.8)

8.7 (4.2–15.4)

< 0.0001*

Total bilirubin (mg/dL)

0.5 (0.4–0.8)

0.5 (0.3–0.8)

0.7 (0.4–0.8)

0.5 (0.4–0.7)

0.305

Creatinine (mg/dL)

0.82 (0.64–1.17)

0.78 (0.61–0.91)

0.94 (0.63–1.50)

0.82 (0.68–1.70)

0.141

Received treatment (percent [number])

Mechanical ventilation use

28.7 [39]

0.0 [0]

6.8 [3]

97.3 [36]

< 0.0001*

High-FLOW Nasal Oxygenation use

0.7 [1]

0.0 [0]

0.0 [0]

2.7 [1]

0.270

Systemic steroids

58.1 [79]

27.3 [15]

72.7 [32]

86.5 [32]

< 0.0001*

Ciclesonide

56.6 [77]

52.7 [29]

50.0 [22]

70.3 [26]

0.140

Remdesivir

34.6 [47]

3.6 [2]

43.2 [19]

70.3 [26]

< 0.0001*

Favipiravir

27.2 [37]

7.3 [4]

36.4 [16]

45.9 [17]

< 0.0001*

Tocilizumab

5.9 [8]

0.0 [0]

0.0 [0]

21.6 [8]

< 0.0001*

Chlorquine

12.5 [17]

16.4 [9]

6.8 [3]

13.5 [5]

0.353

  1. *p < 0.05.