Patient and headache characteristics
| Characteristics | Clinical diagnosis of migraine | IHS diagnosis of migraine |
|---|---|---|
| IHS = International Headache Society. | ||
| No. of patients | 441 | 371 |
| No. of trials | 724 | 611 |
| Sex | ||
| Male | 187 | 162 |
| Female | 254 | 209 |
| Age at trial, y | ||
| <6 | 6 | 5 |
| 6–11 | 253 | 215 |
| 12–18 | 390 | 378 |
| >18 | 52 | 13 |
| Frequency at time of trial/mo | ||
| <6 | 385 | 331 |
| 6–12 | 150 | 135 |
| 13–24 | 88 | 77 |
| >24 | 101 | 68 |
| Nausea, % | 56.1 | 64.6 |
| Vomiting, % | 24.3 | 31.6 |
| Photophobia, % | 76.6 | 81.3 |
| Phonophobia, % | 64.8 | 70.3 |
| Aggravated by physical activity, % | 67.3 | 77.8 |