Healthcare provider–patient communication and migraine assessment: results of the American Migraine Communication Study, phase II

Objective: The American Migraine Communication Study I (AMCS I) revealed communication deficits illustrated by differing healthcare professional (HCP) and patient reports about issues such as impairment and frequency. AMCS II was designed to assess an intervention using open-ended questions about impairment and 'ask-tell-ask' sequences to confirm headache frequency in days versus attacks.