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Headache characteristic of patients in Headache Impact Test
| Severity of headache Visits 1/2 | Attack rate n (%) | |||||
|---|---|---|---|---|---|---|
| 0-5 | 6-8 | 9-10 | 1-3/day | 1-6/week | 1-3/month | |
| Grade 1 | 8/7 | -/1 | -/- | - | - | 8 (10%) |
| Grade 2 | 4/- | 4/- | -/- | - | - | 8 (10%) |
| Grade 3 | 8/6 | 16/17 | 4/5 | 4 (7.6%) | 8 (7.4%) | 16 (20%) |
| Grade 4 | 16/14 | 88/85 | 92/97 | 48 (92.3%) | 100 (92.5%) | 48 (60%) |
