title: Decline of arterial cerebral infarction among young women: the Bergen Stroke Study.
abstract: OBJECTIVE
  To assess the frequency of females and males aged ≤ 30 years with cerebral infarction in two different time periods.
  
  
  METHODS
  All patients aged ≤ 30 years with arterial cerebral infarction in 1988-1997 and 2006-2010 admitted to Haukeland University Hospital in Bergen, Norway, were included. Risk factors and etiology were assessed.
  
  
  RESULTS
  Between 1988 and 1997, 16 females and 7 males had cerebral infarction, whereas 0 females and 13 males had cerebral infarction in 2006-2010 (P = 0.0001). The incidence of cerebral infarction in females was significantly lower between 2006 and 2010 than between 1988 and 1997 (P = 0.007).
  
  
  CONCLUSIONS
  Our findings suggest that the frequency of cerebral infarction among young females has dropped significantly during recent years.
authors.affiliation: Department of Neurology, Haukeland University Hospital, University of Bergen, Norway. haln@haukeland.no
authors.forename: Halvor
authors.initials: H
authors.lastname: Naess
authors.forename: Annette
authors.initials: A
authors.lastname: Fromm
authors.forename: Ole Erik
authors.initials: OE
authors.lastname: Iversen
authors.forename: Lars
authors.initials: L
authors.lastname: Thomassen
authors.forename: Ulrike
authors.initials: U
authors.lastname: Waje-Andreassen
mesh_terms: D000328:Adult; D000367:Age Factors; D002539:Cerebral Arterial Diseases / Q000453:epidemiology*; D002544:Cerebral Infarction / Q000453:epidemiology*; D016009:Chi-Square Distribution; D005260:Female; D006785:Hospitals, University / Q000706:statistics & numerical data; D006801:Humans; D015994:Incidence; D008297:Male; D009664:Norway / Q000453:epidemiology; D010343:Patient Admission / Q000706:statistics & numerical data; D012189:Retrospective Studies; D018570:Risk Assessment; D012307:Risk Factors; D012737:Sex Factors; D013997:Time Factors; D055815:Young Adult