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A population-based study on bowel habits in a Swedish community: prevalence of faecal incontinence and constipation
Linköpings universitet, Institutionen för molekylär och klinisk medicin. Linköpings universitet, Institutionen för klinisk och experimentell medicin, Gastroenterologi och hepatologi. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Medicincentrum, Endokrin- och magtarmmedicinska kliniken US.
Linköpings universitet, Institutionen för klinisk och experimentell medicin, Kirurgi. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Kirurgi- och onkologicentrum, Kirurgiska kliniken i Östergötland med verksamhet i Linköping, Norrköping och Motala. (;)
Vise andre og tillknytning
2002 (engelsk)Inngår i: Scandinavian Journal of Gastroenterology, ISSN 0036-5521, Vol. 37, nr 8, s. 911-916Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Background: The self-reported bowel habits and the prevalence of faecal incontinence and constipation in men and women between the ages of 31 and 76 are assessed.

Methods: A postal questionnaire was sent to a random sample ( n = 2000) of the total population of persons between the ages of 31 and 76 living in the County of Östergötland, Sweden.

Results: The response rate was 80.5%. Overall, 67.8% reported one bowel movement per day and 4.4% had more than 21 or less than 3 bowel movements per week. This means that 95.6% had between 3 bowel movements a day to 3 bowel movements a week. Among women, 4.3%, and among men, 1.7%, reported less than 3 bowel movements per week. Women and men used the same terms to describe the definition of constipation. Women had a significantly higher self-reported prevalence of constipation than men ( P < 0.0001). About 20% of all women considered themselves constipated. The use of laxatives increased with age and 22% and 10% of elderly women and men, respectively, used laxatives including bulking agents for at least every fourth toilet procedure. About 10% reported leakage of faeces more often than once a month in the case of loose stools. With solid faeces, the rate of leakage was 1.4% and 0.4% for women and men, respectively. Soiling of underclothes more than once a month occurred in 21% of men and in 14.5% of women ( P = 0.006) and involuntary daily leakage of gas in 5.9% of men and 4.9% of women (n.s.).

Conclusions: Constipation and faecal incontinence are common problems in a general Swedish population.

sted, utgiver, år, opplag, sider
2002. Vol. 37, nr 8, s. 911-916
Emneord [en]
Bowel Habits, Constipation, Faecal Incontinence, Population-BASED, Prevalence, Questionnaire
HSV kategori
Identifikatorer
URN: urn:nbn:se:liu:diva-14179DOI: 10.1080/003655202760230865OAI: oai:DiVA.org:liu-14179DiVA, id: diva2:22807
Tilgjengelig fra: 2006-12-07 Laget: 2006-12-07 Sist oppdatert: 2009-08-21
Inngår i avhandling
1. Irritable Bowel Syndrome: Diagnostic Symptom Criteria and Impact of Rectal Distensions on Cortisol and Electrodermal Activity
Åpne denne publikasjonen i ny fane eller vindu >>Irritable Bowel Syndrome: Diagnostic Symptom Criteria and Impact of Rectal Distensions on Cortisol and Electrodermal Activity
2006 (engelsk)Doktoravhandling, med artikler (Annet vitenskapelig)
Abstract [en]

In a population prevalence questionnaire study we demonstrated that constipation and fecal incontinence are common problems in the general Swedish population with a similar magnitude as in other Western countries. 95.6% of the population had between three bowel movements per day and three per week. Constipation was mostly defined by “hard stools” and “the need of using laxatives”.

Irritable Bowel Syndrome (IBS) is characterized by abdominal pain/discomfort and abnormal bowel habits. The diagnostic criteria of IBS are based on clinical symptoms. Division of IBS patients into symptom subgroups appears important as their bowel symptoms are characterized by heterogeneity. International criteria to subgroup IBS (Rome II) are based on expert consensus and not on evidence. We investigated the variation of stool consistency and defecatory symptoms in 135 IBS patients by symptom diary cards. Most patients had

alternating stool consistency. When subgroups were based on stool consistency, all kinds of defecatory symptoms (straining, urgency, and feeling of incomplete evacuations) were frequently present in all subgroups. Stool frequency was in the normal range in the majority of patients. We propose that IBS subgroups should be based on stool consistency. We suggest that Rome II supportive criteria must be reconsidered as the determination of presence or absence of specific symptoms does not work as an instrument for categorization of IBS patients into diarrhoea- and constipation-predominant. We also propose that abnormal stool frequency should be excluded to define subgroups of IBS. Alternating stool consistency and presence of different defecatory symptoms, regardless of stool consistency should be included as criteria for IBS.

Stress is known to play an important role in the onset and modulation of IBS symptoms. From experimental studies there is evidence for a stress-dependent alteration of visceral sensitivity. The biological mechanisms responsible for the causal link between stress and IBS symptoms are not completely understood, but the hypothalamic-pituitary-adrenocortical axis and the autonomous nervous system seem to play a prominent role in the pathophysiology of IBS. We investigated visceral sensitivity and the effect of repeated maximal tolerable rectal distensions on salivary cortisol levels and skin conductance in patients with IBS, chronic constipation and healthy volunteers.

We found that the expectancy of the experimental situation per se (provocation of bowel symptoms by rectal distensions) compared to non-experimental days at home measured as salivary cortisol had a high impact on the level of arousal in IBS. IBS patients had higher skin conductance values than controls in the beginning of distension series and lower rectal thresholds for first sensation, urge and discomfort than healthy controls and constipation patients. IBS patients demonstrated habituation to repeated subjective maximal tolerable rectal distensions according to sympathetic activity although patients continued to rate their discomfort as maximal. Constipation patients had lower sympathetic activity than IBS patients before and during repeated rectal distensions. None of the groups demonstrated a significant increase in cortisol after repetitive rectal distensions.

We conclude that Rome II supportive criteria for IBS should be reconsidered according to our findings. IBS patients are more sensitive to pre-experimental stress than healthy controls and patients with constipation. This should be considered in the design of experimental IBS studies. IBS patients habituated to subjective maximal tolerable, repetitive rectal distensions with decreasing sympathetic activity. Since responses to repeated stimuli of close-to-pain intensities are resistant to habituation this finding could be caused by psychological influences on perception, that is, perceptual response bias.

sted, utgiver, år, opplag, sider
Institutionen för molekylär och klinisk medicin, 2006
Serie
Linköping University Medical Dissertations, ISSN 0345-0082 ; 974
Emneord
Irritable Bowel Syndrome (IBS), diarrhoea- and constipation-predominant, stress, nervous, cortisol
HSV kategori
Identifikatorer
urn:nbn:se:liu:diva-7899 (URN)91-85643-24-6 (ISBN)
Disputas
2006-12-15, Eken, Campus US, Linköpings Universitet, Linköping, 13:00 (engelsk)
Opponent
Veileder
Tilgjengelig fra: 2006-12-07 Laget: 2006-12-07 Sist oppdatert: 2012-03-22

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