Table 2.

JOABPEQ and VAS scores at baseline, 3 months, and 9 months after administration

	Baseline	3 months	P	9 months	P (VS baseline)
JOABPEQ; median (IQR)
Pain-related disorders	29 (14-43)	100 (57-100)	<0.001*	100 (71-100)	<0.001*
Lumbar spine dysfunction	42 (29-58)	75 (58-100)	<0.001*	83 (79-100)	<0.001*
Gait disturbance	43 (14-71)	93 (64-100)	<0.001*	100 (86-100)	<0.001*
Social life dysfunction	43 (19-57)	73 (51-78)	<0.001*	78 (59-100)	<0.001*
Psychological disorders	48 (39-54)	59 (51-74)	<0.001*	66 (49-78)	<0.001*
VAS, median (IQR)
Low back pain	5.0 (3.5-7.5)	2.0 (1.0-3.0)	<0.001*	1.0 (0.8-3.0)	<0.001*
Pain in the buttocks and lower limb	7.0 (5.0-8.5)	2.0 (1.0-4.0)	<0.001*	1.0 (0-2.0)	<0.001*
Numbness in the buttocks and lower limb	6.0 (3.0-8.0)	1.0 (0-2.5)	<0.001*	0 (0-1.5)	<0.001*

Wilcoxon signed rank test.

JOABPEQ, Japanese Orthopaedic Association Back Pain Evaluation Questionnaire; VAS, visual analogue scale; IQR, interquartile range