Demographics and clinical features of patients referred to headache specialists.

Objective: To examine demographic characteristics and clinical features of headache patients referred to neurologists specializing in headache in Canada.

Methods: Demographic and clinical data were collected at the time of consultation for 865 new headache patients referred to five headache-specialty clinics in Canada. The Headache Impact Test (HIT-6) and Migraine Disability Questionnaire (MIDAS) were used to measure headache impact and disability.