Fig. 2

Issues with (a) acute and (b) prophylactic treatment reported for > 5% of patients with episodic migraine (EM) and chronic migraine (CM): physician-reported data. Issues were selected from a predetermined list by physicians when patients responded to the question “Any issues with acute/preventive regimen?”. An item was checked only if considered an issue by the physician. Data were not available for all patients (either unknown or patient was not receiving treatment). Percentages are calculated as proportion of patients receiving acute therapy who reported at least one issue with therapy (acute treatment: EM, N = 668; CM, N = 38, total, N = 706; preventive treatment: EM, N = 295; CM, N = 21; total, N = 316). “None” indicates the physician noted the patient had no acute/preventive treatment issues in the “other” category. GI, gastrointestinal; MOH, medication overuse headache. ^aFisher’s exact test