Table 4.

Association of Japanese Orthopaedics Association (JOA) recovery rate and affecting variables by multiple linear regression analyses with input method

Variable	Multiple linear regression analysis model (R2 = 0.941)
	B	SE	β	t	p-value
Age	-0.314	0.314	-0.170	-0.999	0.330
Sx duration	0.121	0.186	0.114	0.651	0.523
Preop JOA	5.949	2.533	0.424	2.349	0.030*
SIR	-19.699	8.861	-0.195	-2.223	0.038*

Sx, symptom; preop, preoperative; SIR, signal intensity ratio; SE, standard error.

^*Statistical significance by multiple linear regression analysis satisfied with p<0.05.