Table 3 Gas distribution in four regions for both NAVA and PSV

11.98 ± 11.17

11.76 ± 10.65

0.715

12.89 ± 8.79

11.86 ± 8.89

0.057

12.21 ± 8.49

11.11 ± 9.37

0.039^a

38.60 ± 17.65

36.36 ± 18.71

0.054

44.26 ± 13.63

39.02 ± 15.07

0.003^a

41.94 ± 14.80

37.58 ± 13.87

0.004^a

39.79 ± 21.54

41.37 ± 22.41

0.220

35.75 ± 18.50

40.13 ± 19.64

0.014^a

37.58 ± 18.82

41.37 ± 18.82

0.18

9.66 ± 8.42

10.98 ± 9.05

0.158

7.53 ± 4.98

9.25 ± 5.54

0.005^a

9.10 ± 6.71

10.89 ± 8.06

0.020^a

49.46 ± 27.28

52.35 ± 27.97

0.093

43.28 ± 20.22

49.38 ± 22.00

0.007^a

46.68 ± 21.94

52.26 ± 22.22

0.004^a