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Table 4 Relationship between functional variables and visual CT-scores of emphysema by multivariate linear regression model with stepwise selection

From: Computer quantification of airway collapse on forced expiration to predict the presence of emphysema

Variables

Partial R2value

Model R2value

p value

1.

   

 AC, degrees

0.5032

0.5032

<.0001

 FEV1/FVC

0.0211

0.5244

<.0001

2.

   

 AC, degrees

0.5056

0.5056

<.0001

 KCO, %predicted

0.1137

0.6193

<.0001

 FEV1, %predicted

0.0067

0.6260

0.0040

  1. 1/ Variables of spirometry (initial model: AC, FVC,%pred, FEV1,%pred, FEV1/FVC); 2/ Variables of spirometry and diffusion capacity (initial model: AC, FVC,%pred, FEV1,%pred, FEV1/FVC, DL,CO,%pred, KCO,%pred).
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Respiratory Research

ISSN: 1465-993X

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