Table 3.

Showing the differences of VAS and ODI at follow-up and their significance in both groups.

Difference between	VAS		ODI
	SNRB Mean ± SD (p value)	Caudal Mean ± SD (p value)	SNRB Mean ± SD (p value)	Caudal Mean ± SD (p value)
Initial-1 month	4.43 ± 0.7 (0.001)	4.57 ± 0.8 (0.001)	41.30 ± 7.7 (0.001)	46.60 ± 08.2 (0.001)
Initial-3 months	4.25 ± 0.8 (0.001)	4.42 ± 1.2 (0.001)	38.65 ± 5.9 (0.001)	50.55 ± 11.7 (0.001)
Initial-6 months	4.05 ± 0.9 (0.001)	4.50 ± 1.4 (0.001)	38.00 ± 5.8 (0.001)	50.95 ± 13.9 (0.001)
Initial-1 year	3.58 ± 1.1 (0.001)	4.33 ± 1.5 (0.001)	36.50 ± 6.3 (0.001)	51.15 ± 03.9 (0.001)