MRI grading of spinal stenosis is not associated with the severity of low back pain in patients with lumbar spinal stenosis

Table 4 Stepwise linear regression analysis to identify factors associated with severity of buttock and leg pain

	Variable	B^a	SE^b	β^c	P	Adjusted R²
Final	(Constant)	3.958	0.412			0.520
	NRS LBP	0.223	0.047	0.221	< 0.001
	NRS Buttock and leg numbness	0.392	0.041	0.445	< 0.001
	SF-36 Bodily pain	−0.037	0.006	−0.283	< 0.001
	% Slip	0.028	0.011	0.100	0.015

The independent variables entered into the model were age, sex, body mass index, presence and number of comorbidities, trunk muscle mass, appendicular skeletal muscle mass, NRS, SF-36 score, and radiological and MRI findings
^aUnstandardized coefficient
^bstandard error
^cstandardized coefficients

ISSN: 1471-2474