Headache Impact Test (HIT-6)
Objective[edit | edit source]
HIT-6 was developed to assess the impact of headaches on a patient's daily life. It covers 6 items questioning the frequency of the things below;
- severe pain,
- pain-related functional limitation, the feeling of urge to lie down, feeling too tired to do work or daily activities, the feeling of irritation and concentration difficulty on work/daily activities. 
Intended Population[edit | edit source]
People with migraine or other severe headaches. 
Method of Use[edit | edit source]
It is a self-report measure that the form is given to the patient to fill out. The 5 responses in each item (never, rarely, sometimes, very often, or always) have a numerical value (6, 8, 10, 11, and 13, respectively). A higher score in the possible 36-78 score range indicates a higher impact. 
Evidence[edit | edit source]
Reliability[edit | edit source]
It was found reliable for patients with chronic migraine in a study with data from the PROMISE-2 (The Prevention Of Migraine via Intravenous ALD403 Safety and Efficacy‒2) study. 
Validity[edit | edit source]
Resources[edit | edit source]
HIT-6 can be found here.
References[edit | edit source]
- Kosinski, M., Bayliss, M. S., Bjorner, J. B., Ware, J. E., Garber, W. H., Batenhorst, A., ... & Tepper, S. (2003). A six-item short-form survey for measuring headache impact: The HIT-6™. Quality of life research, 12, 963-974.
- Houts, C. R., Wirth, R. J., McGinley, J. S., Gwaltney, C., Kassel, E., Snapinn, S., & Cady, R. (2020). Content validity of HIT‐6 as a measure of headache impact in people with migraine: a narrative review. Headache: The Journal of Head and Face Pain, 60(1), 28-39.
- Houts CR, McGinley JS, Wirth RJ, Cady R, Lipton RB. Reliability and validity of the 6-item Headache Impact Test in chronic migraine from the PROMISE-2 study. Quality of Life Research. 2021 Mar;30:931-43.