Table 1.

Comparison of the baseline information of the two groups

Groups	PELD	MED	t/χ2 test	P-value
Male/female	154 / 113	75 / 41	1.638	0.201
Age (years)	47.2 ± 13.2	49.0 ± 10.9	- 1.276	0.203
BMI	24.1 ± 3.4	23.6 ± 2.6	- 0.372	0.710
VAS-B	1.9 ± 1.4	2.1 ± 1.0	- 1.318	0.188
VAS-L	6.8 ± 1.0	6.7 ± 0.9	0.397	0.691
ODI (%)	63.5 ± 10.2	62.5 ± 7.3	1.039	0.300