Table 2 VEMP response rates in headache patients and healthy controls
TTH (n = 30) Migraine (n = 38) Controls (n = 50)
oVEMP
Bilateral response, n (%) 27 (90.0 %) 30 (78.9 %) 45 (90.0 %)
Unilateral response, n (%) 2 (6.7 %) 7 (18.4 %) 3 (6.0 %)
No response, n (%) 1 (3.3 %) 1 (2.6 %) 2 (4.0 %)
cVEMP
Bilateral response, n (%) 23 (76.7 %) 34 (89.5 %) 46 (92.0 %)
Unilateral response, n (%) 7 (23.3 %) 4 (10.5 %) 3 (6.0 %)
No response, n (%) 0 (0 %) 0 (0 %) 1 (2.0 %)
TTH tension-type headache, oVEMP ocular vestibular evoked myogenic potential, cVEMP cervical vestibular evoked myogenic potential