Table 2. The connection between MRI hyperintense lesions and clinical characteristics of migraine.
| Migraine characteristic | Patients with hyperintense lesion | Patients without hyperintense lesion | p-value |
|---|---|---|---|
| Disease duration (years) | 16 | 10.4 | 0.008 |
| Intensity of the pain | 7.3 | 7.5 | 0.613 |
| Duration of prophylactic medications (years) | 1.6 | 1.7 | 0.953 |
| Sumatriptan dosage (tablets/month) | 0.6 | 1.5 | 0.341 |
| Aura (%) | 17 | 25 | 0.310 |
| Frequency (numbers/month) | 14 | 11 | 0.923 |
| Chronic migraine* (%) | 24 | 8 | 0.032 |
*Chronic migraine is a migraine headache occurring for at least 15 days per month over a period of at least three months.