title: Field testing the alternative criteria for tension-type headache proposed in the third beta edition of the international classification of headache disorders: results from the Korean headache-sleep study.
abstract: BACKGROUND
  According to the third beta edition of the International Classification of Headache Disorder (ICHD-3 beta), the diagnostic criteria for tension-type headache (TTH) might lead to the inclusion of individuals with headaches showing migrainous features. To better define TTH, the alternative diagnostic criteria were proposed in the appendix of ICHD-3 beta. This study attempted to test the alternative criteria for diagnosis of TTH proposed in ICHD-3 beta in a population-based sample from Korea.
  
  
  METHODS
  We selected participants from the Korean population aged 19-69 years using stratified random sampling and evaluated them by interview using a questionnaire designed to identify headache type, headache characteristics, and psychiatric comorbidities.
  
  
  RESULTS
  Of the 2,762 participants, 586 (21.3%) were diagnosed as having TTH using the standard criteria. Among these, 238 (40.6%) were also classified as having TTH using the alternative criteria. All 238 TTH subjects first diagnosed as having TTH by the alternative criteria were also classified as having TTH by the standard criteria. If the standard criteria were not applied, the remaining 348 patients were subclassified as having probable migraine (115, 19.6%) and unclassified headache (233, 39.7%). Compared with subjects diagnosed with TTH using the standard criteria, those diagnosed using the alternative criteria were less likely to demonstrate unilateral, pulsating headache, which is aggravated by movement, photophobia, phonophobia, and osmophobia.
  
  
  CONCLUSIONS
  Using the alternative criteria, less than half of the subjects with TTH according to the standard criteria were classified as having TTH. All the subjects with TTH by the alternative criteria were classified as having TTH by the standard criteria. This study also demonstrated that subjects diagnosed with TTH using the standard criteria could include people with headaches showing migrainous features.
authors.forename: Min Kyung
authors.initials: MK
authors.lastname: Chu
authors.forename: Soo-Jin
authors.initials: SJ
authors.lastname: Cho
authors.forename: Jae-Moon
authors.initials: JM
authors.lastname: Kim
authors.affiliation: Department of Neurology, Kangnam Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea. hwang@hallym.ac.kr.
authors.forename: Sung-Hee
authors.initials: SH
authors.lastname: Hwang
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D020773:Headache Disorders / Q000145:classification / Q000175:diagnosis* / Q000453:epidemiology; D006306:Health Surveys; D006801:Humans; D038801:International Classification of Diseases; D008297:Male; D008875:Middle Aged; D017286:Polysomnography; D015995:Prevalence; D056910:Republic of Korea / Q000453:epidemiology; D012890:Sleep; D011795:Surveys and Questionnaires; D018781:Tension-Type Headache / Q000145:classification / Q000175:diagnosis* / Q000453:epidemiology; D055815:Young Adult