Gender | 61.1% male - 38.9% female |
Age (median – range) | 43.0 (20–76) |
Current or past smoker | 74.1% (50% current - 24.1% past) |
Painfree periods (episodic) (N = 31) | 67.7% |
Pain between attacks | 50.9% |
Attack duration untreated (median-range) | 60 min (9–330) |
Attack frequency (median-range) | 2 attacks per day (0.1–8) |
Verapamil usage | 55.4% |