Table 2 Pearson correlation coefficient between QCT measurements and Spirometry parameters for both groups of study

PRM^Fsad

-0.400(< 0.001)^b

-0.422(< 0.001)^b

-0.610(< 0.001)^b

-0.388(0.001)^b

ATI

-0.395(0.001)^b

-0.438(< 0.001)^b

-0.602(0 < 001)^b

-0.351(0.002)^b

%LAA_Exp < -856

-0.437(< 0.001) ^b

-0.508(< 0.001)^b

-0.665(< 0.001)^b

-0.432(< 0.001)^b

PRM^Fsad + PRM^Emph

-0.446(< 0.001) ^b

-0.527(< 0.001)^b

-0.617(< 0.001)^b

-0.452(< 0.001)^b

E/I ratio

-0.438(< 0.001)^b

-0.397(0.001)^b

-0.459(< 0.001)^b

-0.323(0.005)^b

ND E/I ratio

0.308(0.014)^a

0.290(0.021)^a

0.122(0.340)

0.275(0.029)^a

AV/I ratio

0.100(0.412)

0.100(0.411)

0.348(0.003) ^b

0.081(0.507)

PRM^Emph

-0.353(0.002)^b

-0.457(< 0.001)^b

-0.445(< 0.001)^b

-0.373(0.001)^b

%LAA_ins < -950

-0.133(0.270)

-0.204(0.088)

-0.506 (< 0.001)^b

-0.213(0.075)