Table 3 Baseline characteristics between influenza A induced ARDS and COVID-19-induced ARDS survivors

Age (year)

70.0 (59.0–75.0)

70.0 (59.0–78.0)

69.0 (59.8–74.8)

0.322

Male, no. (%)

30 (54.5)

12 (52.2)

18 (56.3)

0.765

Smoking status (Current or former), no. (%)

12 (21.8)

4 (17.4)

8 (25.0)

0.742

BMI (kg/m²)

22.6 (19.7–25.1)

19.9 (16.9–22.5)

24.1 (22.2–25.5)

< 0.001

CCI

1.0 (0.0–3.0)

3.0 (1.0–5.0)

0.0 (0.0–1.0)

< 0.001

SOFA

7.0 (4.0–12.0)

10.0 (5.0–12.0)

5.0 (3.3–9.0)

< 0.001

Use of vasopressor, no (%)

40 (72.7)

20 (87.0)

20 (62.5)

0.066

RRT, no (%)

3 (5.5)

3 (13.0)

0 (0.0)

0.068

ICU hospitalization period (day)

19.0 (10.0–29.0)

9.0 (7.0–16.0)

22.0 (19.0–42.3)

< 0.001

Tracheostomy, no (%)

12 (21.8)

6 (26.1)

6 (18.8)

0.516

Weaning success, no (%)

46 (83.6)

22 (95.7)

24 (75.0)

0.064