Table 1.

Descriptions of group A, group B and the control group (median, minimum and maximum) in relation to age, onset of symptoms, pain scale (VAS) and Oswestry questionnaire before and after treatment.

Variable	Period	Group
		A			B			Control
		Median	Min	Max	Median	Min	Max	Median	Min	Max
Age (years)		46.2	37	53	46.2	39	51	46.6	44	51
Onset of symptoms (months)	Before	78	6	240	7.2	3	12
VAS intensity (cm)	Before	4.83	4.3	5.5	5.08	0.5	7.7
	After	3.59	0.15	7.5	0.23	0	0.5
VAS frequency (cm)	Before	8.74	6.8	9.3	6.19	0.7	9.9
	After	5.31	0.3	9.1	2.09	0	5.09
Oswestry Questionnaire	Before	19.8	11	33	11.8	4	23
	After	18.2	5	37	3.4	1	18