Table 1. Mean and difference of outcome measure before and after the spine injection in neck pain.

Outcome measure	Pre-injection	Post-injection	Difference	p-value
	mean	mean	mean (95% CI)
NRS	6.67	5.64	1.02 (0.38–1.67)	0.002
NDI	16.33	13.33	3.00 (1.13–4.87)	0.003

NDI, neck disability index; NRS, numeric rating scale; ODI, Oswestry disability index.