Reliability and validity of the 6-item Headache Impact Test in chronic migraine from the PROMISE-2 study

ConclusionThe HIT-6 was successfully calibrated using IRT with data from PROMISE-2. Results from these analyses were generally consistent with previous literature and provided supportive evidence that the HIT-6 is well suited for measuring the impact of headache and migraine in the CM population.
Source: Quality of Life Research - Category: Health Management Source Type: research