VAS
pain
15 min after SCI, 2 weeks and 1, 3- and 6-months follow-up, both the HVCI group and the VLVCI group showed a significant decrease in the VAS scores for pain with during activities. Using the Generalized Estimating Equation, we compared the two continuous outcomes, namely, pain VAS and WORC scores between groups (GEE). The statistical analysis in VAS, set with a significant difference level, was less than 0.05. The VAS score for pain during activities decreased from 4.91 ± 2.52 before the injection, to 2.61 ± 1.8, 15 min post injection (mean decrease of 2.3 (95% CI = − 3.33 to − 1.28) in the high-volume corticosteroid injection group (P < 0.001) and the very low volume corticosteroid injection group decreased from 4.78 ± 2.3 to 2.78 ± 1.59 (95% CI = − 2.75 to − 1.25), respectively, for both groups (P-value < 0.001). Fifteen minutes post-injection, there was a similar trend in the efficacy, in the lowering in the pain score between the treatment groups (P Change of the VAS referred by patient before and after the SCI.