title: [Prevalence of syncope in a sample of Mexican women residents in Mexico City].
abstract: OBJECTIVE
  To identify the frequency of syncope in a sample of women regular residents of Mexico City.
  
  
  METHODS
  Two hundred and twenty one women between 18 and 88 years old with voluntary participation were included in the study. Trained interviewers through a structured questionnaire obtained syncope information. Prevalence of syncope was obtained, and it's relation with: age, time since the last syncope and frequency of syncope in their live span was registered.
  
  
  RESULTS
  Thirty eight percent informed they had suffered syncope, of them 50% had only one syncopal episode during their lives. The others had two or more episodes. Most women had their last syncope between 19 and 50 years of age.
  
  
  CONCLUSIONS
  The frequency of syncope was a little higher than previous studies. This is a first approximation, which must be corroborated with larger studies with well population variability representation.
authors.affiliation: Instituto Nacional de Cardiología lgnacio Chávez México D.F.
authors.forename: Manuel
authors.initials: M
authors.lastname: Cárdenas
authors.forename: Maite
authors.initials: M
authors.lastname: Vallejo
authors.forename: Guadalupe
authors.initials: G
authors.lastname: Martínez-Palomino
authors.forename: Guadalupe
authors.initials: G
authors.lastname: Paredes-Balderas
authors.forename: Lorena A
authors.initials: LA
authors.lastname: Sandoval-Rubio
authors.forename: Estela
authors.initials: E
authors.lastname: Maldonado-Gallardo
authors.forename: J Antonio G
authors.initials: JA
authors.lastname: Hermosillo
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D008800:Mexico / Q000453:epidemiology; D008875:Middle Aged; D015995:Prevalence; D013575:Syncope / Q000453:epidemiology*; D014504:Urban Health; D055815:Young Adult