From: The efficacy of repetitive transcranial magnetic stimulation in treating patients with chronic daily headache
Study group
Control group
P value
Mean ± SD
Headache frequency
3.19 ± 1.328
21.45 ± 6.729
0.001*
Headache intensity
0.81 ± .655
2.45 ± 0.522
Headache index
3.06 ± 2.999
52.18 ± 18.819