Efficacy of Pulsed Radiofrequency on Cervical 2-3 Posterior Medial Branches in Treating Chronic Migraine: A Randomized, Controlled, and Double-Blind Trial

Table 2

The mean doses of aspirin taken by patients in the treatment group were significantly lower than those in the sham group.

Group	1st month	2nd month	6th month
Treatment	()	()	()
Sham	14.79 ± 5.10; ()	14.32 ± 5.17; ()	14.00 ± 4.71; ()

  versus the sham group.