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Diagnoses in the 85 study subjects (ICHD-II, ICHD-IIR)
| Frequencya | % | |
|---|---|---|
| Chronic migraine | 69 | 81.1 |
| Migraine without aura | 12 | 14 |
| Migraine with aura | 7 | 8.2 |
| Episodic tension-type headache | 4 | 4.7 |
| Chronic tension-type headache | 3 | 3.5 |
aSome patients presented multiple diagnoses
