Table 2.

Visual Analog Score (VAS) Back and Leg and Oswestery Disability Index (ODI) Preoperative, 2 Weeks, 2 Months, and at Final Follow-up for Single-Level and Multilevel Decompression

Characteristic	Single Level	Multilevel	P
Number	98	98
Preoperative
VAS back	6.11 ± 1.21	6.29 ± 1.28	0.725
VAS leg	7.39 ± 0.91	7.47 ± 1.09	0.746
ODI	62.98 ± 11.53	64.66 ± 13.71	0.783
Postoperative 2 weeks
VAS back	3.87 ± 0.69	4.09 ± 0.86	0.658
VAS leg	2.79 ± 1.65	2.86 ± 1.74	0.834
ODI	27.02 ± 9.51	27.37 ± 9.82	0.658
Postoperative 2 months
VAS back	1.98 ± 0.61	2.05 ± 0.72	0.725
VAS leg	1.85 ± 0.58	1.94 ± 0.77	0.512
ODI	19.34 ± 9.01	20.42 ± 10.51	0.359
Final
VAS back	1.82 ± 0.67	1.91 ± 0.75	0.931
VAS leg	1.72 ± 0.48	1.86 ± 0.58	0.457
ODI	18.51 ± 8.63	19.31 ± 9.42	0.534