. Author manuscript; available in PMC: 2018 Jan 1.

Published in final edited form as: Spine (Phila Pa 1976). 2017 Jan 1;42(1):42–48. doi: 10.1097/BRS.0000000000001647

Table 2. Outcomes (RDQ, RDQ Using SIP Weights, and Patient-Prioritized RDQ) According to Treatment Group.

	Lidocaine Alone			Corticosteroid + Lidocaine			Treatment Comparison

Outcomes	N	Mean (SD)	Mean change (SD)	N	Mean (SD)	Mean change (SD)	Coef (95% CI)	P-value
*Overall*

RDQ
Baseline	200	15.7 (4.3)	-	200	16.1 (4.5)	-	-	-
3 Weeks	189	13.1 (5.7)	-2.6 (4.4)	195	11.7 (6.1)	-4.4 (5.7)	-1.8 (-2.8, -0.9)	<0.001
6 Weeks	193	12.5 (6.4)	-3.1 (5.3)	193	11.8 (6.3)	-4.2 (5.8)	-1.0 (-2.1, 0.1)	0.07

RDQ using SIP Weights
Baseline	200	14.6 (4.4)	-	200	15.1 (4.7)	-	-	-
3 Weeks	189	12.2 (5.7)	-2.5 (4.3)	195	10.7 (6.0)	-4.4 (5.6)	-1.9 (-2.9, -0.7)	<0.001
6 Weeks	193	11.7 (6.3)	-2.9 (5.1)	193	11.0 (6.1)	-4.1 (5.6)	-1.1 (-2.2, -0.1)	0.04

RDQ Patient-Prioritized (LESSER)
Baseline	200	15.2 (4.3)	-	200	15.7 (4.5)	-	-	-
3 Weeks	189	12.7 (5.8)	-2.7 (4.5)	195	11.2 (6.1)	-4.5 (5.9)	-1.8 (-2.8, -0.8)	<0.001
6 Weeks	193	12.0 (6.5)	-3.1 (5.3)	193	11.5 (6.2)	-4.2 (5.8)	-1.0 (-2.0, 0.1)	0.08