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Headache disorders are common and may be disabling. Many people with migraine headache have not been diagnosed. Less common headache types such as cluster headache may continue for years without proper diagnosis. New therapies are available for each of these conditions.
An earlier version, CHAT-I, was found to be accurate in diagnosing migraine, tension-type headache, medication overuse, and cluster headaches. CHAT-III was developed to be consistent with recent changes in headache diagnoses. Formal development and testing of CHAT-III are ongoing.
CHAT–III uses branching logic, much like a physician would, to ask questions based on the answers given to previous questions. It is important to answer each question as accurately as possible.
The Computerized Headache Assessment Tool – III (CHAT-III) is designed as a tool to help patients with stable headache patterns receive an accurate headache diagnosis. The output of CHAT-III should be reviewed by medical personnel, and should never be relied upon without medical confirmation.
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