Table 3.

Correlations Between Fat-Free Mass Index and the Variables Studied in COPD Patients (n = 123)

Parameter	r	P
FEV1%predicted	0.265	<0.001
FEV1/FVC	0.288	<0.001
BMI	0.844	<0.001
mMRC dyspnea scale	−0.264	<0.001
CAT	−0.247	<0.001
HGS (kg)	0.338	<0.001
6MWD (m)	0.162	0.074
CC (cm)	0.820	<0.001

Abbreviations: CAT, COPD Assessment Test; CC, calf circumference; FFMI, hat-free-mass index; FEV₁, forced expiratory value in 1 second; FVC, forced vital capacity; HGS, handgrip strength; mMRC, modified Medical Research Council; 6MWD, 6-min walking distance.