Table 1.

Differences between patients with episodic an chronic migraine; MMD – monthly migraine days.

	Episodic migraine	Chronic migraine
MMD at baseline	14 ± 7 (n = 31)	20 ± 5 (n = 21)
MMD after 3 treatment months	6 ± 5 (n = 31)	7 ± 6 (n = 20)
MMD after 12 treatment months	5 ± 4 (n = 31)	5 ± 4 (n = 20)
MMD during the first month after treatment interruption	8 ± 4 (n = 19)	5 ± 3 (n = 15)
MMD during the second month after treatment interruption	9 ± 5 (n = 19)	8 ± 4 (n = 15)
MMD during the third month after treatment interruption	12 ± 6 (n = 14)	11 ± 4 (n = 14)
MMD during the first month after treatment restart	7 ± 5 (n = 8)	5 ± 3 (n = 9)