Ultrasound-Guided Selective Nerve Root Block versus Fluoroscopy-Guided Interlaminar Epidural Block versus Fluoroscopy-Guided Transforaminal Epidural Block for the Treatment of Radicular Pain in the Lower Cervical Spine: A Retrospective Comparative Study

Table 4

Multiple logistic regression analysis for possible outcome predictors for injection effectiveness at follow-up.

Factor	OR	95% CI	value
US vs FL-guided methods	0.912	0.582–1.428	0.686
Cause (HCD, stenosis)	0.988	0.463–2.111	0.976
Sex	1.140	0.517–2.513	0.746
Age	1.006	0.972–1.041	0.729
Number of injections	1.062	0.503–2.242	0.875
Pain duration	0.863	0.725–1.028	0.099

OR: odds ratio, 95% CI: 95% confidence interval. Ultrasound (US), fluoroscopy (FL), herniated cervical disc (HCD).