All patients

(n = 45)

Mild

(n = 15)

Moderate

(n = 18)

Severe

(n = 12)

p values

Age, median (IQR), years

64 (53 - 73)

63 (54 - 72)

65 (47 - 75)

66 (52 - 73)

0.929

≤65

23 (51.1%)

9 (60.0%)

9 (50.0%)

5 (41.7%)

0.644

>65

22 (48.9%)

6 (40.0%)

9 (50.0%)

7 (58.3%)

Sex

Female

16 (35.6%)

8 (53.3%)

7 (38.9%)

1 (8.3%)

0.044

Male

29 (64.4%)

7 (46.7%)

11 (61.1%)

11 (91.7%)

Onset of symptom to ARDS, median (IQR), days

8 (3 - 16)

8 (2 - 19)

7 (4 - 16)

7 (2 - 15)

0.944

Contact history of epidemic area

Wuhan

30 (66.7%)

8 (53.3%)

12 (66.7%)

10 (83.3%)

0.238

Jingzhou

15 (33.3%)

7 (46.7%)

6 (33.3%)

2 (16.7%)

Chronic medical illness

30 (66.7%)

9 (60.0%)

15 (83.4%)

6 (50%)

Diabetes

4 (8.9%)

1 (6.7%)

2 (11.1%)

1 (8.3%)

>0.99

Hypertension

17 (37.8%)

6 (40.0%)

7 (38.9%)

4 (33.4%)

>0.99

Cardiovascular disease

4 (8.9%)

1 (6.7%)

2 (11.1%)

1 (8.3%)

>0.99

Chronic obstructive

pulmonary disease

4 (8.9%)

1 (6.7%)

3 (16.7%)

0 (0%)

0.434

Cancer

1 (2.2%)

0 (0%)

1 (5.6%)

0 (0%)

>0.99

Current smoking

4 (8.9%)

1 (6.7%)

1 (5.6%)

2 (16.7%)

0.656

Signs and symptoms

Fever

45 (100%)

15 (100%)

18 (100%)

12 (100%)

>0.99

Dry Cough

41 (91.1%)

14 (93.3%)

16 (88.9%)

11 (91.7%)

>0.99

Dyspnea

33 (73.3%)

8 (53.3%)

13 (72.2%)

12 (100%)

0.017

Vomiting

20 (44.4%)

6 (40%)

8 (44.4%)

6 (50%)

0.931

Fatigue

22 (48.9%)

9 (60%)

8 (44.4%)

5 (41.7%)

0.6

Chest pain

40 (88.9%)

12 (80%)

16 (88.9%)

12 (100%)

0.35

Haemoptysis

1 (2.2%)

0 (0%)

0 (0%)

1 (8.3%)

0.272

Dorsalgia

6 (13.3%)

3 (20.0%)

1 (5.6%)

2 (16.7%)

0.477

Diarrhea

8 (17.8%)

4 (26.7%)

3 (16.7%)

1 (8.3%)

0.486