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Absolute (n) and relative (%) frequency of pain free episodes at 2 and 24 h according to baseline headache intensity in the two treatment groups
| Frovatriptan | Rizatriptan | p | ||
|---|---|---|---|---|
| Pain free episodes at 2 hours | ||||
| Mild | 3 (20) | 8 (40) |
|
NS |
| Moderate-severe | 12 (80) | 12 (60) | ||
| Pain free episodes at 24 hours | ||||
| Mild | 2 (6) | 13 (24) |
|
<0.01 |
| Moderate-severe | 31 (94) | 23 (76) | ||
p refers to the statistical significance of the difference between the two study drugs
