Table 1 Epidemiological, demographic, clinical and laboratory characteristics of COVID-19 patients by hospital length of stay (LOS).

Demographic and clinical characteristics

Disease severity status

0.797

Mild or general

54 (72%)

25 (69%)

29 (74%)

Severe or critical

21 (28%)

11 (31%)

10 (26%)

Sex

0.061

Female

32 (43%)

11 (31%)

21 (54%)

Male

43 (57%)

25 (69%)

18 (46%)

Age, years, median (IQR) (range)

47 (31–54) (5–91)

43.5 (29.8–52.3)

47 (33.5–56)

0.644

Exposure history to Wuhan

41 (55%)

18 (50%)

23 (59%)

0.491

Source of patients

0.212

First diagnosis

63 (84%)

28 (78%)

35 (90%)

Transfer from other hospitals

12 (16%)

8 (22%)

4 (10%)

Smoker

3 (4%)

2 (6%)

1 (3%)

0.605

Fever

65 (87%)

28 (78%)

37 (95%)

0.042

Cough

47 (63%)

22 (61%)

25 (64%)

0.815

Myalgia

4 (5%)

2 (6%)

2 (5%)

1

Throat pain

4 (5%)

2 (6%)

2 (5%)

1

Fatigue

10 (13%)

7 (19%)

3 (8%)

0.181

Chest congestion

11 (15%)

4 (11%)

7 (18%)

0.520

Comorbidity

32 (42%)

14 (34%)

18 (51%)

0.160

Hypertension

13 (17%)

7 (19%)

6 (15%)

0.763

Diabetes

9 (12%)

5 (14%)

4 (10%)

0.730

Chronic kidney or liver disease

10 (13%)

4 (11%)

6 (15%)

0.738

Laboratory characteristics in the first 2 days after in hospital

CRP, mg/L

10.3 (2.5–27.7)

14.3 (2.1–28.1)

8.2 (2.9–19.4)

0.695

White blood cell count, *10⁹/L

5.5 (4.7–7.7)

5.2 (4.7–7.7)

6.1 (4.8–7.5)

0.645

Lymphocyte count, *10⁹/L

1.3 (0.9–1.8)

1.3 (0.9–1.8)

1.4 (0.9–1.8)

0.869

Neutrophil count, *10⁹/L

3.6 (2.7–6.0)

3.4 (2.6–5.4)

3.8 (2.8–6.2)

0.494

D-dimer, µg/ml

0.2 (0.2–0.3)

0.2 (0.2–0.4)

0.2 (0.2–0.3)

0.341

CD4/CD8

1.4 (1.2–1.8)

1.4 (1.1–1.5)

1.4 (1.3–1.8)

0.272

AST, IU/L

24.2 (19.8–30.0)

23.5 (18.9–29.0)

24.2 (20.5–31.0)

0.567

ALT, IU/L

27.7 (16.9–36.8)

28.4 (16.0–32.5)

27.7 (19.3–39.3)

0.524

Creatinine, µmol/L

65.0 (58.2–72.8)

68.8 (60.9–78.0)

64.0 (53.8–70.2)

0.052

Procalcitonin, ng/ml

0.1 (0.1–0.2)

0.1 (0.1–0.2)

0.1 (0.1–0.2)

0.199

IL-6, pg/ml

5.7 (5.1–6.3)

5.7 (5.5–6.1)

5.7 (5.0–6.3)

0.431

Glucose, mmol/L

6.1 (5.3–7.5)

5.7 (5.4–7.7)

6.3 (5.2–7.4)

0.616

Lactate dehydrogenase, U/L

222.0 (178.6–271.7)

224.3 (184.2–273.5)

208.5 (177.3–263.2)

0.436

Troponin, µg/L

0.1 (0.1–0.3)

0.1 (0.1–0.3)

0.1 (0.1–0.3)

0.865

Total bilirubin, µmol/L

16.1 (12.1–22.4)

16.1 (12.8–21.2)

17.4 (12.0–22.9)

0.932

Indirect bilirubin, µmol/L

10.6 (7.7–13.6)

10.5 (7.3–12.3)

10.9 (7.8–13.6)

0.762

Direct bilirubin, µmol/L

6.3 (4.5–9.1)

6.3 (4.8–9.4)

6.0 (4.4–9.0)

0.504

CT scan features

Ground-glass opacities

32 (43%)

12 (33%)

20 (51%)

0.161

Bilateral pulmonary infiltration

67 (89%)

31 (86%)

36 (92%)

0.469

Consolidation

13 (17%)

7 (19%)

6 (15%)

0.763