Headache Impact Test-6 (HIT-6) Scores for Migraine Patients: Their Relation to Disability as Measured from a Headache Diary

다국어 초록 (Multilingual Abstract)

Background and Purpose Complete information on migraine-related disabilities facilitate
the making of appropriate treatment decisions. Although the accessibility and ease of use of the
Headache Impact Test-6 (HIT-6) make it a very promising instrument, there are few data available
for comparing HIT-6 scores with the actual amount of disability.
Methods To determine whether the disability measured using the HIT-6 questionnaire realistically
reflects the amount of disability as extracted from a headache diary, which would help
when deciding a management plan, 130 patients with migraine without aura were instructed to
complete a headache diary on the days on which headache occurred. Each diary booklet also
contained questions on the resulting disability, and comprised five items originating from the
Migraine Disability Assessment Scale. After submitting their diaries, the participants completed
the HIT-6 for the same time period.
Results Disability as recorded in diaries was present for a mean of 2.7 days per month, and
its duration differed significantly with HIT-6 score: 0.9, 2.6, and 4.6 days per month for littleto-
no impact, moderate impact, and severe impact, respectively. The summed disability score
from diaries was also related to the HIT-6 score. Headache frequency was the only headache
characteristic that contributed significantly to the HIT-6 score.
Conclusions This study demonstrates that the HIT-6 could be useful for assessing headacherelated
disability in migraine patients, especially given that the questionnaire is both simple and
ease of use.

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