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Table 3 Multivariable robust regression analysis of the associations between clinical characteristics and baseline lung function

From: Lung function in Birt-Hogg-Dubé syndrome: a retrospective analysis of 96 patients

VariableFEV1
(%pred)
FVC
(%pred)
FEV1/FVC
(%pred)
TLC
(%pred)
RV
(%pred)
RV/TLC
(%)
DLco
(%pred)
DLco/VA
(%pred)
 βpβpβpβpβpβpβpβp
Age (yr)0.190.0620.200.058−0.090.1290.070.591−0.300.3200.220.007−0.170.2590.030.848
Gender (F)−2.310.4382.340.444−0.840.6107.180.05719.890.0306.840.003−13.580.002−18.50< 0.001
Smoking (yes)0.240.9352.550.395−1.950.2261.630.6543.750.669−0.860.687−8.930.033−9.110.053
Pleurodesis
Unilateral−5.700.090−6.220.071−0.190.918−0.720.86010.220.3014.380.0832.730.5585.100.339
Bilateral−13.400.003−20.74< 0.0015.520.024−4.260.43225.510.05511.070.001−9.510.1414.210.541
  1. FEV1 forced expiratory volume in one second, FVC forced vital capacity, TLC total lung capacity, RV residual volume, DLco carbon monoxide transfer factor, DLco/VA carbon monoxide transfer coefficient, yr year, F female, %pred percentage of predicted value, β partial regression coefficient. Robust linear regression model