Table 2 Baseline blood gas, NT-proBNP, haemodynamics, and CPET examination characteristics of all patients

Number of patients

140

40

13

25

25

20

17

PaO₂ (mmHg)

69.75 ± 14.52

75.40 ± 13.13

73.64 ± 12.28

65.51 ± 18.38

65.03 ± 11.94

61.22 ± 7.97

77.08 ± 13.85

PaCO₂ (mmHg)

35.93 ± 6.89

35.48 ± 3.42

33.64 ± 3.83

36.68 ± 13.19

38.65 ± 13.19

33.73 ± 3.85

36.05 ± 2.70

SaO₂ (%)

92.88 ± 4.53

94.22 ± 4.76

94.3 ± 2.31

90.95 ± 5.70

91.69 ± 4.43

91.49 ± 3.45

95.09 ± 2.03

NT-proBNP (pg/ml)

1260.35 ± 1364.62

1063.88 ± 1410.25

1527.68 ± 1583.17

1688.02 ± 671.05

1621.12 ± 1188.38

1986.57 ± 1926.25

974.92 ± 769.72

Mean PAP (mmHg)

55.73 ± 17.06

57.55 ± 19.93

50.77 ± 13.52

68.12 ± 20.46

52.76 ± 9.32

48.3 ± 8.9

50.12 ± 13.62

PVR (dyn•s•cm-5)

1128.66 ± 490.40

1214.71 ± 556.99

1032.50 ± 406.93

1077.91 ± 514.50

1298.43 ± 492.18

1008.06 ± 310.30

979.89 ± 477.77

CI (L/min/m²)

2.79 ± 1.35

2.75 ± 0.7

2.84 ± 0.48

3.63 ± 2.36

2.47 ± 0.58

1.35 ± 1.46

3.01 ± 0.85

MRAP (mmHg)

6.01 ± 4.47

5.82 ± 4.23

5.23 ± 6.15

6.6 ± 4.13

6.56 ± 4.65

6.53 ± 4.30

4.77 ± 4.24

PeakVO2/kg (mL/min/kg)

12.65 ± 3.93

13.89 ± 4.32

11.44 ± 2.66

13.87 ± 4.08

10.55 ± 2.34

10.27 ± 2.37

14.19 ± 4.23

VE/VCO2

42.99 ± 9.80

42.35 ± 9.71

39.96 ± 8.80

42.47 ± 8.13

44.9 ± 11.27

47.03 ± 11.91

40.24 ± 7.47