Table 4.

Sarcopenia criteria and muscle function status of COPD cases and controls

Variables	COPD (n = 111)	Control (n = 111)	P-value*
6MWT (m)	429.95 ± 76.59	565.97 ± 384.85	< 0.001
pre.O2 (%)	92.66 ± 3.92	96.29 ± 1.17	< 0.001
post.O2 (%)	89.95 ± 5.83	95.50 ± 1.39	< 0.001
5STS (s)	12.85 ± 4.13	8.62 ± 2.13	< 0.001
Right hand.grip (kg)	29.67 ± 7.95	37.81 ± 8.19	< 0.001
Left hand.grip (kg)	28.30 ± 7.86	36.85 ± 8.33	< 0.001
SMI (kg/m2)	9.89 ± 1.28	10.97 ± 1.21	< 0.001

Values are indicated as mean ± standard deviation

Independent sample T-test was applied for groups comparison

6MWT 6 min walking test, 5STS 5 sit to stand, SMI skeletal muscle index

*The p < 0.05 was considered as significant