TABLE 3.
Headache symptoms among subjects in group A, B, and C.
| Headache symptoms | A (n = 86) | B (n = 35) | C (n = 51) |
| Frequency (times/3 months) | 3 (0.3, 7.9) | 6 (3, 12)* | 7.5 (3, 16.5)* |
| Duration (h) | 12 (2, 24) | 24 (5, 36)* | 24 (4.5, 36)* |
| Intensity (VAS) | 5 (3, 6) | 5 (4, 7) | 5 (5, 7)*† |
| Accompanying symptoms | |||
| Nausea | 34 (40%) | 18 (51%) | 38 (75%)*† |
| Vomiting | 20 (23%) | 10 (29%) | 27 (53%)*† |
| Photophobia | 26 (30%) | 17 (49%) | 21 (41%) |
| Phonophobia | 47 (55%) | 23 (66%) | 35 (69%) |
| Osmophobia | 4 (5%) | 4 (11%) | 6 (12%) |
| Neck stiffness | 13 (15%) | 9 (26%) | 14 (27%) |
| Scalp allodynia | 14 (16%) | 5 (14%) | 5 (10%) |
A: the onset of migraine was earlier than vertigo; B: the onset of vertigo was earlier than migraine; C: vertigo was accompanied with headache. VAS: visual analog scale. *p < 0.05 vs. group A; †p < 0.05 vs. group B.