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. 2012 May;10(5):494-500.
doi: 10.1016/j.cgh.2011.12.041. Epub 2012 Jan 28.

Factors associated with persistent and nonpersistent chronic constipation, over 20 years

Rok Seon Choung  1 , G Richard Locke 3rd, Enrique Rey, Cathy D Schleck, Charles Baum, Alan R Zinsmeister, Nicholas J Talley
Affiliations

Factors associated with persistent and nonpersistent chronic constipation, over 20 years

Rok Seon Choung et al. Clin Gastroenterol Hepatol. 2012 May.

Abstract

Background & aims: The prevalence of chronic constipation (CC) has been reported to be as high as 20% in the general population, but little is known about its natural history. We estimated the natural history of CC and characterized features of persistent CC and nonpersistent CC, compared with individuals without constipation.

Methods: In a prospective cohort study, we analyzed data collected from multiple, validated surveys (minimum of 2) of 2853 randomly selected subjects, over a 20-year period (median, 11.6 years). Based on responses, subjects were characterized as having persistent CC, nonpersistent CC, or no constipation. We assessed the association between constipation status and potential risk factors using logistic regression models, adjusting for age and sex.

Results: Of the respondents, 84 had persistent CC (3%), 605 had nonpersistent CC (21%), and 2164 had no symptoms of constipation (76%). High scores from the somatic symptom checklist (odds ratio [OR] = 2.1; 95% confidence interval [CI], 1.3-3.4) and frequent doctor visits (OR = 2.0; 95% CI, 1.0-3.8) were significantly associated with persistent CC, compared with subjects with no constipation symptoms. The only factor that differed was increased use of laxatives or fiber among subjects with persistent CC (OR = 3.0; 95% CI, 1.9-4.9).

Conclusions: The prevalence of constipation might be exaggerated-the proportion of the population with persistent CC is low (3%). Patients with persistent and nonpersistent CC have similar clinical characteristics, although individuals with persistent CC use more laxatives or fiber. CC therefore appears and disappears among certain patients, but we do not have enough information to identify these individuals in advance.

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Figures

Figure 1
Figure 1
Proportion of those with persistent chronic constipation, non-persistent chronic constipation, or no chronic constipation
See this image and copyright information in PMC

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