Table 2 Pearson correlation coefficients for quantitative CT measures and PFT measures

 Mean Lung Attenuation

-0.78

<0.001

-0.73

<0.001

 Skewness

0.76

<0.001

0.73

<0.001

 Kurtosis

0.71

<0.001

0.68

<0.001

 Percent High Attenuating Area

-0.77

<0.001

-0.69

<0.001

 Fibrosis Score, fibrosis%

-0.64

<0.001

-0.7

<0.001

 Quantitative Interstitial Score, interstitial%

-0.79

<0.001

-0.70

<0.001

 Percentage of Interstitial Disease Occupied by Honeycombing, Honeycombing%

-0.66

<0.001

-0.66

<0.001