Table 3 FiO₂, SaO₂/FiO₂, PaO₂/FiO₂ and A-a O₂ gradient of patients in the two groups

FiO₂, %

POD 0: 1800 h

23.1 (3.6)

n = 32

26.0 (4.3)

n = 25

0.029 (0.008; 0.050)

POD 0: 2000 h

25.0 (5.8)

n = 39

27.1 (6.0)

n = 36

0.021 (− 0.005; 0.049)

POD 0: 2200 h

23.3 (4.7)

n = 38

24.8 (6.2)

n = 39

0.015 (− 0.010; 0.040)

POD 1 before and after mobilization

21.0 (0.0)

n = 34

22.6 (3.5)

n = 39

0.016 (0.005; 0.028)

SaO₂/FiO₂

POD 0: 1800 h

421.7 (51.9)

n = 32

379.8 (62.1)

n = 25

− 41.9 (− 71.6; − 11.2)

POD 0: 2000 h

401.1 (73.3)

n = 39

369.5 (70.9)

n = 36

− 31.6 (− 65.0; 1.4)

POD 0: 2200 h

423.2 (59.4)

n = 38

402.2 (69.0)

n = 39

− 21.0 (− 50.5; 8.8)

Before mobilization POD 1

450.2 (8.5)

n = 34

424.3 (52.7)

n = 39

− 25.8 (− 44.4; − 8.0)

After mobilization POD 1

451.7 (7.9)

n = 34

426.0 (50.5)

n = 39

− 25.7 (− 43.3; − 8.5)

PaO₂/FiO₂

POD 0: 1800 h

353.6 (57.2)

n = 32

342.1 (74.1)

n = 25

− 11.5 (− 46.3; 23.2)

POD 0: 2000 h

357.6 (51.6)

n = 39

367.4 (120.8)

n = 36

9.82 (− 32.65; 51.49)

POD 0: 2200 h

365.3 (77.2)

n = 38

348.0 (65.0)

n = 39

− 17.3 (− 49.0; 14.2)

POD 1:

Before mobilization

346.4 (48.7)

n = 34

322.9 (64.5)

n = 39

− 23.6 (− 50.9; 3.4)

POD 1:

After mobilization

362.3 (41.6)

n = 34

339.1 (50.5)

n = 39

− 23.1 (− 44.7; − 1.4)

A-a O₂ gradient

POD 0: 1800 h

5.06 (3.35)

n = 32

6.60 (4.10)

n = 25

1.54 (− 0.45; 3.50)

POD 0: 2000 h

5.92 (3.83)

n = 39

7.18 (6.49)

n = 36

1.25 (− 1.16; 3.70)

POD 0: 2200 h

4.95 (3.92)

n = 38

6.55 (5.24)

n = 39

1.60 (− 0.46; 3.70)

POD 1:

Before mobilization

4.34 (1.51)

n = 34

6.02 (3.78)

n = 39

1.68 (0.31; 3.10)

POD 1:

After mobilization

3.88 (1.30)

n = 34

5.45 (2.99)

n = 39

1.58 (0.49; 2.69)