Table 2.

Correlation of handgrip strength with measures of body composition, lung function, and imaging phenotypes

Markers of Body Composition	Correlation Coefficient	P Value
Pectoralis muscle area	0.42	<0.001
Subcutaneous fat area	−0.35	<0.001
Body mass index	0.07	0.25
Lung function
FEV1 in liters	0.47	<0.001
FEV1% predicted	0.12	0.05
Total lung capacity	0.54	<0.001
Markers of respiratory impact
Chronic bronchitis symptoms	−0.04	0.51
mMRC dyspnea score	−0.17	<0.001
Distance walked in 6 minutes	0.30	<0.001
Imaging characteristics
Emphysema percentage	−0.07	0.27
Pi10	−0.32	<0.001

Definition of abbreviation: mMRC = modified Medical Research Council Dyspnea Scale.