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Related Experiment Videos

Functional constipation and outlet delay: a population-based study

N J Talley1, A L Weaver, A R Zinsmeister

  • 1Division of Gastroenterology and Internal Medicine, Mayo Clinic and Foundation, Rochester, Minnesota.

Gastroenterology
|September 1, 1993
PubMed
Summary
This summary is machine-generated.

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Approximately 1 in 5 middle-aged adults experience functional constipation, and 1 in 10 have outlet delay. Self-reported constipation is an unreliable indicator for these conditions.

Area of Science:

  • Gastroenterology
  • Epidemiology
  • Public Health

Background:

  • Chronic constipation has multiple underlying mechanisms, including colonic inertia and rectosigmoid outlet delay.
  • Risk factors and prevalence of functional constipation and outlet delay in the general population are not well-established.
  • Understanding these conditions is crucial for effective community-based management.

Purpose of the Study:

  • To estimate the prevalence of functional constipation and rectosigmoid outlet delay in a community-dwelling population.
  • To identify predictors associated with functional constipation and outlet delay.
  • To assess the reliability of self-reported constipation in identifying these conditions.

Main Methods:

  • An age- and gender-stratified random sample of 1,021 residents (aged 30-64) in Olmsted County, MN, was surveyed.

Related Experiment Videos

  • A validated self-report questionnaire was administered, with a response rate of 82% for the initial survey.
  • A follow-up questionnaire assessing symptoms of functional constipation and outlet delay was sent to initial respondents, achieving an 83% response rate.

    • Main Results:

    • Prevalence estimates (age- and gender-adjusted) were 19.2% for functional constipation and 11.0% for outlet delay.
    • Outlet delay was more prevalent in women, while functional constipation was not significantly different by gender.
    • Increased aspirin use was associated with functional constipation, but not outlet delay, after adjusting for covariates.

    Conclusions:

    • Functional constipation affects approximately 1 in 5 middle-aged adults, and outlet delay affects about 1 in 10.
    • Self-reported constipation symptoms do not reliably identify individuals with functional constipation or outlet delay.
    • These findings highlight a discrepancy between perceived and actual constipation diagnoses in the community.