title: The prevalence, symptom characteristics, and impact of irritable bowel syndrome in an asian urban community.
abstract: OBJECTIVE
  To study the epidemiology, symptom characteristics and impact of IBS in an urban Asian population.
  
  
  METHODS
  A validated bowel symptom questionnaire was administered at face-to-face interviews to a random sample of 3,000 households in Singapore.
  
  
  RESULTS
  The response rate was 78.2% (n = 2,276, 1,143 males and 1,133 females). The age, sex, and racial distribution of our respondents were similar to the general population and there was no significant difference between respondents and nonrespondents by type of household. The prevalence of IBS was 11.0%, 10.4%, and 8.6% by Manning (>1 criteria), Rome I and Rome II criteria, respectively. There was a higher prevalence of IBS in those <50 years of age (9.7%vs 5.8% 50 or > years, p = 0.002), with more than 6 years of education (9.8%vs 5.9% 6 year or <, p = 0.002) and living in landed property (16.8%vs 8.2% living in apartments and public housing, p = 0.008). There was no striking preponderance of female IBS subjects. Chronic constipation was a more common bowel disturbance than chronic diarrhea among our IBS subjects (51.0%vs 12.8%).
  
  
  CONCLUSIONS
  The prevalence and impact of IBS in our Asian urban society are greater than previously appreciated. We believe that our results provide a useful window to the future trends of gastrointestinal diseases for health and education authorities in developing Asian countries to look into.
authors.affiliation: Department of Medicine, National University of Singapore, Singapore.
authors.forename: Kok-Ann
authors.initials: KA
authors.lastname: Gwee
authors.forename: Sharon
authors.initials: S
authors.lastname: Wee
authors.forename: Mee-Lian
authors.initials: ML
authors.lastname: Wong
authors.forename: Damian J C
authors.initials: DJ
authors.lastname: Png
mesh_terms: D000328:Adult; D017677:Age Distribution; D000368:Aged; D000704:Analysis of Variance; D044466:Asian People / Q000706:statistics & numerical data; D016009:Chi-Square Distribution; D016001:Confidence Intervals; D005260:Female; D006801:Humans; D015994:Incidence; D043183:Irritable Bowel Syndrome / Q000175:diagnosis* / Q000453:epidemiology*; D008297:Male; D008875:Middle Aged; D016017:Odds Ratio; D011159:Population Surveillance; D015995:Prevalence; D011788:Quality of Life; D012307:Risk Factors; D012720:Severity of Illness Index; D017678:Sex Distribution; D018434:Sickness Impact Profile; D012846:Singapore / Q000453:epidemiology; D011795:Surveys and Questionnaires; D014505:Urban Population