A Retrospective Chart Review to Evaluate Diagnosis and Treatment of Chronic Migraine and Headache

This study is a retrospective chart review in patients diagnosed with headache or migraine to evaluate treatment patterns and diagnosis.

Inclusion Criteria:

• Diagnosis of chronic migraine or other diagnosis of migraine or headache for a minimum of 15 months
• Eight (8) headache days per month for at least 1 of the preceding 15 months

Exclusion Criteria:

• Not currently diagnosed with chronic migraine, headache or migraine
• History of receiving botulinum toxin injections for the treatment of chronic migraine.