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Table 2 Comparison of pulmonary function test results between the two main visits

From: The effectiveness of glucocorticoid treatment in post-COVID-19 pulmonary involvement

 

Baseline visit (V1)

Follow-up visit (V2)

Mean difference

p-valuea

(mean ± SD)

(mean ± SD)

MD ± SD

CS group ( N = 131)

VC [L, ml]

3.25 ± 0.86

3.65 ± 0.89

403.7 ± 510.05

0,0003

VC [%predicted]

86.93 ± 17.25

97.22 ± 14.96

10.29 ± 13.33

<0.0001

FEV1/VC [%]

79.96 ± 7.75

79.04 ± 7.69

-0.92 ± 5.23

0,3299

TLC [L, ml]

5.68 ± 1.21

6.30 ± 1.25

649.84 ± 756.45

0,0001

TLC [%predicted]

90.78 ± 16.36

100.09 ± 14.86

9.95 ± 12.16

<0.0001

RV [L, ml]

2.48 ± 0.72

2.67 ± 0.71

204.69 ± 700.12

0,0366

RV [%predicted]

108.24 ± 28.88

115.32 ± 27.35

8.37 ± 29.19

0,0299

DLCOc [%predicted]

57.69 ± 15.94

66.90 ± 14.93

10.18 ± 12.55

<0.0001

KCOc [%predicted]

79.31 ± 16.00

83.13 ± 16.51

4.43 ± 11.85

0,0969

WW group ( N = 894 b )

VC [L, ml]

3.56 ± 0.98

3.65 ± 0.99

95.1 ± 353.23

0,0336

VC [%predicted]

99.23 ± 16.18

101.91 ± 15.65

2.68 ± 9.94

0,0006

FEV1/VC [%]

79.29 ± 7.00

78.56 ± 6.84

-0.73 ± 4.71

0,0212

TLC [L, ml]

6.11 ± 1.30

6.20 ± 1.34

92.72 ± 758.67

0,2036

TLC [%predicted]

105.16 ± 15.72

106.31 ± 14.65

1.27 ± 12.84

0,1159

RV [L, ml]

2.61 ± 0.71

2.63 ± 0.71

22.18 ± 611.47

0,6972

RV [%predicted]

126.57 ± 30.38

126.59 ± 28.51

0.18 ± 29.61

0,8244

DLCOc [%predicted]

77.79 ± 15.96

80.11 ± 14.71

2.79 ± 12.82

0,0101

KCOc [%predicted]

88.48 ± 15.43

89.10 ± 15.14

1.51 ± 10.01

0,5088

  1. aMann-Whitney U test; bPatients with available follow-up data