Table 4 Demographic and clinical characteristics association with outcome

Age^a

58.3 ± 16.2

64.61 ± 14.0

0.11

Age groups^b

 40 years and below

0 (0)

7 (13.5)

0.151

 41–60 years

8 (34.8)

19 (36.5)

  > 60 years

15 (65.2)

26 (50)

Gender^b

 Male

12 (52.2)

38 (73.1)

0.080

 Female

11 (47.8)

14 (26.9)

Smoking^b

 No

13 (65.5)

28 (53.8)

0.830

 Yes

10 (43.5)

24 (46.2)

Comorbidity^b

 No

4 (17.4)

10 (19.2)

0.850

 Yes

19 (82.6)

42 (80.8)

Comorbidity number^c

2 [2]

1 [1]

0.292

CHASD-Vasc score^c

2 [3]

1 [1]

0.068

CHASD-Vasc risk^b

 Low

5 (21.7)

16 (30.8)

0.014*

 Low-moderate

1 (4.3)

15 (28.8)

 High-moderate

17 (73.9)

21 (40.4)

Hypertension^b

 No

11 (47.8)

36 (69.2)

0.080

 Yes

12 (52.2)

16 (30.8)

Diabetes^b

 No

14 (60.9)

31 (59.6)

0.910

 Yes

9 (39.1)

21 (40.4)

ARDS severity^b

 Mild

0 (0)

3 (5.8)

0.382

 Moderate

16 (69.6)

38 (75)

 Severe

7 (30.4)

11 (19.2)

Intubation^b

 No

7 (30.4)

37 (71.2)

0.001*

 Yes

16 (69.6)

15 (28.8)

O2 response^b

 Yes

7 (30.4)

24 (46.2)

0.202

 No

16 (69.6)

28 (53.8)

CO2 response^b

 Yes

8 (34.8)

21 (40.4)

0.646

 No

15 (65.2)

31 (59.6)