title: The Hordaland Women's Cohort: prevalence, incidence, and remission of urinary incontinence in middle-aged women.
abstract: OBJECTIVE
  The aim of study is to prospectively investigate the prevalence, incidence, and remission of urinary incontinence (UI) in a cohort of middle-aged women.
  
  
  METHODS
  In 1997-1999, 2,229 randomly selected women aged 41-45 agreed to participate in the Hordaland Women's Cohort, and six almost identical postal questionnaires were sent them during the following 10 years. Response rate was 95.7% at inclusion and has remained 87% to 93% in subsequent waves; 64.1% answered all six questionnaires. UI variables include type, amount, frequency, and severity.
  
  
  RESULTS
  Prevalence of UI increased by age until a peak in age group 51-52 years for any (50.3%) and significant (10.0%) UI. There was then a decrease in prevalence caused by a decrease in incidence and decrease in remission. Stress UI was the major type and most UI was of low severity.
  
  
  CONCLUSIONS
  Prevalence of any UI is high in middle-aged women but reaches a peak followed by a decrease.
authors.affiliation: Department of Public Health and Primary Health Care, University of Bergen, Postbox 7800, 5020, Bergen, Norway. david.jahanlu@isf.uib.no
authors.forename: David
authors.initials: D
authors.lastname: Jahanlu
authors.forename: Steinar
authors.initials: S
authors.lastname: Hunskaar
mesh_terms: D000328:Adult; D015331:Cohort Studies; D005260:Female; D006801:Humans; D015994:Incidence; D008875:Middle Aged; D015995:Prevalence; D011446:Prospective Studies; D012074:Remission Induction; D014549:Urinary Incontinence / Q000453:epidemiology*
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