Table 3 Comparison of psychological characteristics, pulmonary functions and other clinical data at baseline and after treatments of patients both in study group and control group (p < 0.05)^a

 STAI-Y1^b (Mean +/− SD)

33.68 (6.48)

26.05 (5.04)

z = − 3771 p = 0.000*

36.68 (10.26)

31.26 (7.43)

z = − 3010 p = 0.001*

  Positive

2926 (0.24)

3.17 (0.36)

z = − 2581 p = 0.005*

3.05 (0.46)

3.01 (0.38)

z = − 0.88 p = 0.465

  Negative

1395 (0.48)

1.12 (0.26)

z = − 3127 p = 0.001*

1.45 (0.43)

1.12 (0.20)

z = − 3186 p = 0.000*

 VAS^b (Mean +/-SD)

20.53 (5.07)

19.79 (3.76)

z = − 0.284 p = 0.388

20.68 (5.45)

17.68 (3.95)

z = − 2605 p = 0.004*

 STAI-Y2^b (Mean+/− SD)

36.63 (11.96)

39 (11.04)

 FEV₁^b (Mean +/-SD)

1.35 (0.74)

1.39 (0.75)

z = − 0.735 p = 0.231

1.24 (0.51)

1.26 (0.47)

z = − 1702 p = 0.044*

 FVC^b (Mean +/-SD)

2143 (0.94)

1.97 (0.93)

z = − 2378 p = 0.008*

2.27 (0.89)

2.38 (0.81)

z = − 2335 p = 0.010*

 ROCC^b, kPa/l/s (Mean +/-SD)

0.34 (0.14)

0.40 (0.19)

z = − 1851 p = 0.032*

0.30 (0.12)

0.30 (0.15)

z = − 0.362 p = 0.358

 vSpO₂^b (Mean +/-SD)

91.63 (3.18)

93.84 (2.73)

z = − 2672 p = 0.004*

95.58 (2.79)

94 (2.62)

z = − 1327 p = 0.092

 HR^b (Mean+/-SD)

69.32 (8.80)

65.47 (7.87)

z = − 3576 p = 0.000*

73.95 (11.47)

73.05 (11.75)

z = − 1776 p = 0.038*