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Table 3 Relationship between functional variables and emphysema extent in univariate linear regression model

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

Variables

R2value

p value

FVC, %predicted

0.1427

<.0001

FEV1, %predicted

0.4001

<.0001

FEV1/FVC

0.5030

<.0001

KCO, %predicted

0.4658

<.0001

DL,CO, %predicted

0.5065

<.0001

AC, degrees

0.5033

<.0001

  1. R2 value represents variance explained by the model.