Table 5.

Comparison of physical function before and after operation (x̅±sd)

Group	Time	6-minute walking test (m)	Non-dominant grip strength (kg/m2)
Control group (n=439)	On admission	550±52	35.25±9.24
	1 day before operation	551±56	35.45±9.56
	At discharge	552±59	35.33±9.87
Observation group (n=439)	On admission	548±48	35.12±9.18
	1 day before operation	560±55***,###	37.25±9.45***,###
	At discharge	564±58***,###	37.33±9.68***,###

Note: Comparison with on admission in the same group;

^***P<0.001.

Comparison with the control group;

^###P<0.001.