Variable

Age

Physical

Functioning

Physical

Health

PCA

BRPES

6MWD

N. Affect

FEV-1

Age

1

Physical Functioning

−0.148a

1

Physical Health

0.315**

0.474***

1

PCAa

0.315**

0.177a

0.475***

1

BRPESb

−0.017a

−0.478***

−0.337**

−0.114a

1

6MWDc

−0.290**

0.631***

0.206a

0.037a

−0.391***

1

N. Affectd

0.262*

0.084a

0.230*

0.363**

0.001a

−0.138a

1

FEV-1

0.189a

0.434***

0.396***

0.128a

−0.279**

0.326*

−0.032a

1