title: Comprehensive Application of the International Classification of Headache Disorders Third Edition, Beta Version.
abstract: The purpose of this study was to test the feasibility and usefulness of the International Classification of Headache Disorders, third edition, beta version (ICHD-3β), and compare the differences with the International Classification of Headache Disorders, second edition (ICHD-2). Consecutive first-visit patients were recruited from 11 headache clinics in Korea. Headache classification was performed in accordance with ICHD-3β. The characteristics of headaches were analyzed and the feasibility and usefulness of this version was assessed by the proportion of unclassified headache disorders compared with ICHD-2. A total of 1,627 patients were enrolled (mean age, 47.4±14.7 yr; 62.8% female). Classification by ICHD-3β was achieved in 97.8% of headache patients, whereas 90.0% could be classified by ICHD-2. Primary headaches (n=1,429, 87.8%) were classified as follows: 697 migraines, 445 tension-type headaches, 22 cluster headaches, and 265 other primary headache disorders. Secondary headache or painful cranial neuropathies/other facial pains were diagnosed in 163 patients (10.0%). Only 2.2% were not classified by ICHD-3β. The main reasons for missing classifications were insufficient information (1.6%) or absence of suitable classification (0.6%). The diagnoses differed from those using ICHD-2 in 243 patients (14.9%). Among them, 165 patients were newly classified from unclassified with ICHD-2 because of the relaxation of the previous strict criteria or the introduction of a new diagnostic category. ICHD-3β would yield a higher classification rate than its previous version, ICHD-2. ICHD-3β is applicable in clinical practice for first-visit headache patients of a referral hospital.
authors.affiliation: Department of Neurology, Seoul Eulji Hospital, Eulji University School of Medicine, Seoul, Korea.
authors.forename: Byung-Kun
authors.identifier: 0000-0003-1053-4682
authors.initials: BK
authors.lastname: Kim
authors.affiliation: Department of Neurology, Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Osan, Korea.
authors.forename: Soo-Jin
authors.identifier: 0000-0002-4053-3763
authors.initials: SJ
authors.lastname: Cho
authors.affiliation: Department of Neurology, Bundang Jesaeng Hospital, Seongnam, Korea.
authors.forename: Byung-Su
authors.initials: BS
authors.lastname: Kim
authors.affiliation: Department of Neurology, Chuncheon Sacred Heart Hospital, Hallym University College of Medicine, Chuncheon, Korea.
authors.forename: Jong-Hee
authors.initials: JH
authors.lastname: Sohn
authors.affiliation: Department of Neurology, Gyeongsang National University School of Medicine, Jinju, Korea.
authors.forename: Soo-Kyoung
authors.initials: SK
authors.lastname: Kim
authors.affiliation: Department of Neurology, National Police Hospital, Seoul, Korea.
authors.forename: Myoung-Jin
authors.initials: MJ
authors.lastname: Cha
authors.affiliation: Department of Neurology, Ewha Womans University School of Medicine, Seoul, Korea.
authors.forename: Tae-Jin
authors.initials: TJ
authors.lastname: Song
authors.affiliation: Department of Neurology, Chungnam National University College of Medicine, Daejeon, Korea.
authors.forename: Jae-Moon
authors.initials: JM
authors.lastname: Kim
authors.affiliation: Department of Neurology, Uijeongbu St.Mary's Hospital, The Catholic University of Korea College of Medicine, Uijeongbu, Korea.
authors.forename: Jeong Wook
authors.initials: JW
authors.lastname: Park
authors.affiliation: Department of Neurology, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Korea.
authors.forename: Min Kyung
authors.initials: MK
authors.lastname: Chu
authors.affiliation: Department of Neurology, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea.
authors.forename: Kwang-Yeol
authors.initials: KY
authors.lastname: Park
authors.affiliation: Department of Neurology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea.
authors.forename: Heui-Soo
authors.identifier: 0000-0002-6847-497X
authors.initials: HS
authors.lastname: Moon
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003430:Cross-Sectional Studies; D005260:Female; D017408:Guidelines as Topic; D020773:Headache Disorders / Q000145:classification / Q000175:diagnosis*; D006801:Humans; D008297:Male; D008875:Middle Aged; D008881:Migraine Disorders / Q000145:classification / Q000175:diagnosis / Q000453:epidemiology; D012042:Registries; D056910:Republic of Korea; D018781:Tension-Type Headache / Q000145:classification / Q000175:diagnosis / Q000453:epidemiology; D055815:Young Adult
keywords: Diagnosis; Headache; Migraine Disorders; Outpatients