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Table 3 Statistics of the differences in pulmonary function parameters of initial PFT and last PFT (n = 33)

From: Progression of pulmonary cysts in Birt-Hogg-Dubé syndrome: longitudinal thoracic computed tomography study with quantitative assessment

 

Initial PFT

Last PFT

Difference

p-value

FEV1 pred(%)

84.0 ± 13.3

83.2 ± 13.1

-0.32 (-0.96, 0.32)

0.31

FEV1/FVC

78.6 ± 7.5

75.9 ± 7.1

-0.67 (-1.35, 0.01)

0.05

VC pred(%)

95.2 ± 14.9

95.5 ± 14.3

0.26 (-0.57, 1.08)

0.53

RV/TLC

30.1 ± 6.4

29.7 ± 6.2

-0.44 (-1.14, 0.25)

0.20

Dlco pred(%)

80.7 ± 11.6

81.2 ± 11.5

0.50 (-1.40, 2.41)

0.60

Dlco/VA

93.2 ± 14.2

93.3 ± 13.6

0.14 (-1.24, 1.52)

0.83

  1. Statistics of the change in PFT were calculated using the paired t-test after converting into the 1-year change rate
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BMC Pulmonary Medicine

ISSN: 1471-2466

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