The Effect of Pulsed Radiofrequency Combined with a Transforaminal Epidural Steroid Injection on Chronic Lumbar Radicular Pain: A Randomized Controlled Trial

Table 2

The number of patients with a decrease in VAS of 20 points or greater at each follow-up period.

Follow-up period	C-group ()	T-group ()	value
1 month	16 (80%)	17 (85%)	1.000
2 months	11 (55%)	16 (80%)	0.091
3 months	4 (20%)	13 (65%)	0.004
4 months	3 (15%)	6 (30%)	0.451

VAS: visual analog score. Statistically significant.