Table 1 Information of 40 patients in the training set and all total patients

Sex (male/female)

17/23

8/17

9/6

77/67

57/51

20/16

Age

51.1 ± 17.3

48 ± 18.9

56.3 ± 13.1

47.6 ± 14.6

45 ± 14.2

55.5 ± 12.8^##

BMI

23.9 ± 3.3

22.7 ± 3.2

26.1 ± 2.1**

24.2 ± 3.1

23.9 ± 3.2

25.5 ± 2.3^##

Onset admission

7.5 ± 4.4

7.5 ± 4.7

7.4 ± 4.1

7 ± 4.2

6.8 ± 3.9

7.9 ± 4.9

Admission discharge

27.5 ± 8.9

27.6 ± 10

27.2 ± 7

21.6 ± 9.4

20.5 ± 9.7

24.7 ± 7.8^#

Symptoms (%)

 Fever

27 (67)

12 (48)

15 (100)**

104 (72.2)

70 (64.8)

34 (94.4)^##

 Pharyngalgia

6 (15)

5 (20)

1 (6.7)

17 (11.8)

15(13.9)

2 (5.6)

 Cough

18 (45)

12 (48)

6 (40)

65 (45.1)

47(43.5)

18 (50)

 Expectoration

10 (25)

7 (28)

3 (20)

26 (18.1)

19(17.6)

7 (19.4)

 Fatigue

2 (5)

1 (4)

1 (6.7)

16 (11.1)

10 (9.3)

6 (16.7)

 Headache

4 (10)

2 (8)

2 (13.3)

16 (11.1)

9 (8.3)

7 (19.4)

 Diarrhea

1 (2.5)

0 (0)

1 (6.7)

6 (4.2)

3 (2.8)

3 (8.3)

 Chest tightness

4 (10)

2 (8)

2 (13.3)

11 (7.6)

7 (6.5)

4 (11.1)

Comorbidity (%)

 Hypertension

8 (20)

4 (16)

4 (26.7)

22 (15.3)

14 (13)

8 (22.2)

 Diabetes

6 (15)

2 (8)

4 (26.7)

14 (9.7)

9 (8.3)

5 (13.9)

 Hyperlipidemia

2 (5)

1 (4)

1 (6.7)

3 (2.1)

2 (1.9)

1 (2.8)

 Cardiovascular disease

1 (2.5)

0 (0)

1 (6.7)

3 (2.1)

1 (0.9)

2 (5.6)

 Kidney disease

1 (2.5)

0 (0)

1 (6.7)

2 (1.4)

1 (0.9)

1 (2.8)

 Digestive system

3 (7.5)

2 (8)

1 (6.7)

7 (4.9)

6 (5.6)

1 (2.8)