title: Reliability and validity of migraine disability assessment questionnaire-Thai version (Thai-MIDAS).
abstract: 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.
  
  
  METHODS
  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).
  
  
  CONCLUSIONS
  The present study reveals that the Thai-MIDAS has satisfactory validity and reliability in comparison with the original English MIDAS version.
authors.affiliation: Division of Neurology, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.
authors.forename: Piman
authors.initials: P
authors.lastname: Seethong
authors.forename: Akarin
authors.initials: A
authors.lastname: Nimmannit
authors.forename: Rungsan
authors.initials: R
authors.lastname: Chaisewikul
authors.forename: Naraporn
authors.initials: N
authors.lastname: Prayoonwiwat
authors.forename: Wattanachai
authors.initials: W
authors.lastname: Chotinaiwattarakul
mesh_terms: D000293:Adolescent; D000328:Adult; D044466:Asian People; D004185:Disability Evaluation; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D008881:Migraine Disorders / Q000175:diagnosis*; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires; D014177:Translations; D055815:Young Adult