Reliability and Validity of Migraine Disability Assessment Questionnaire-Thai Version (Thai-MIDAS)
Piman Seethong MD*, Akarin Nimmannit MD**, Rungsan Chaisewikul MD*, Naraporn Prayoonwiwat MD*, Wattanachai Chotinaiwattarakul MD*,
Affiliation : * Division of Neurology, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand ** Office for Research and Development, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
Objective : To assess the validity and test-retest reliability of a Thai translation of the Migraine Disability Assessment
(MIDAS) Questionnaire in Thai patients with migraine.
Material and Method: Migraineurs from the Headache Clinic in Siriraj Hospital were recruited and asked to complete a 13-
weeks diary and answered the Thai-MIDAS at once. Some participants were asked to provide the 2nd Thai-MIDAS in the next
2 weeks for test-retest reliability.
Results : Ninety-three patients had completed the 13-weeks diaries. Age range was 18-58 years with mean 37.69 + 9.60 years.
All 5 items and the total score of Thai-MIDAS were moderately correlated with data from 13-weeks diary (Spearman’s
correlation coefficient = 0.32-0.62). The test-retest reliability of the total score of Thai-MIDAS in 30 patients demonstrated a
highly reliable degree of intraclass correlation (ICC = 0.76, 95%CI 0.49-0.88).
Conclusion : The present study reveals that the Thai-MIDAS has satisfactory validity and reliability in comparison with the
original English MIDAS version.
Keywords : Migraine, Migraine disability assessment
