title: [A retrospective study of clinical features of migraine].
abstract: OBJECTIVE
  To observe the clinical features of migraine based on out-patient clinic data and provide help for the diagnosis and treatment of migraine.
  
  
  METHODS
  In a retrospective study of 309 patients with migraine, we investigated the clinical characteristics of migraine of both genders and different types, and the risk factors for MOH transformed from migraine.
  
  
  RESULTS
  The female to male ratio was about 3:1, 76.1% of the patients had triggering factors. The most common characteristics of headache were moderate to severe intensity of the pain (97.7%), aggravation by routine physical activity (75.1%), and association with nausea (90.9%) and/or vomiting (70.6%). There were significant differences in some clinical characteristics of migraine in females as compared with those in males and in patients with migraine without aura (MWOA) as compared with those with aura (MWA). The risk factors for MOH transformed from migraine were elder age of onset, high attack frequency and the analgesics frequently used (P < 0.05).
  
  
  CONCLUSIONS
  It is suggested that carefully collecting the characteristics of headache, triggering factors and therapeutic history is the foundation of correct diagnosis and effective treatment for migraine.
authors.affiliation: Department of Neurology, Chinese PLA General Hospital, Beijing 100853, China.
authors.forename: En-chao
authors.initials: EC
authors.lastname: Qiu
authors.forename: Sheng-yuan
authors.initials: SY
authors.lastname: Yu
authors.forename: Yan-e
authors.initials: YE
authors.lastname: Guo
authors.forename: Zhi-bin
authors.initials: ZB
authors.lastname: Zhou
authors.forename: Lei
authors.initials: L
authors.lastname: Jiang
authors.forename: Zhao
authors.initials: Z
authors.lastname: Dong
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D008881:Migraine Disorders / Q000175:diagnosis*; D012189:Retrospective Studies