Table 2.

The results of the multiple linear regression analysis

Model	Variables	Unstandardized β	Standardized coefficients β	t value	P value	VIF
1	Constant	66.452		23.515	< 0.001
	ΔMVIC	12.537	0.300	2.036	0.048	1.000
2	Constant	56.602		13.011	< 0.001
	ΔMVIC	5.913	0.141	0.960	0.343	1.168
	Intervention	8.299	0.417	2.833	0.007	1.168

Dependent variable: The IKDC scores 4 months postoperatively