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

Table 3 Stepwise linear regression analysis to identify factors associated with severity of LBP

	Variable	B^a	SE^b	β^c	P	Adjusted R²
Final	(Constant)	10.332	2.410			0.370
	Age	− 0.050	0.017	− 0.160	0.003
	Female	−0.997	0.421	−0.192	0.018
	Trunk muscle mass	−0.217	0.055	−0.335	< 0.001
	Diabetes	0.556	0.271	0.098	0.041
	NRS Buttock and leg pain	0.286	0.062	0.289	< 0.001
	NRS Buttock and leg numbness	0.211	0.054	0.242	< 0.001
	SF-36 Vitality	−0.014	0.006	−0.119	0.018
	PT	0.030	0.014	0.105	0.030
	Total number of endplate defects	0.191	0.047	0.197	< 0.001

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