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Prevalence of Uninvestigated Dyspepsia 8 Years After a Large Waterborne Outbreak of Bacterial Dysentery: Cohort Study.

Gastroenterology. 2010 Jan 28;

Authors: Ford AC, Thabane M, Collins SM, Moayyedi P, Garg AX, Clark WF, Marshall JK

BACKGROUND & AIMS:: Symptoms of dyspepsia may occur following an episode of acute gastroenteritis, but data are conflicting. We assessed prevalence of uninvestigated dyspepsia in a cohort of individuals, some of whom were exposed to bacterial dysentery in May 2000, as well as risk factors for dyspepsia in exposed individuals. METHODS:: This was a cohort study conducted in the town of Walkerton, Ontario. Involved individuals were recruited into the Walkerton Health Study between 2002 and 2003, and were attending for annual assessment in 2008. Exposed individuals were subdivided into those with self-reported gastroenteritis, with acute illness unconfirmed by health records, and those with clinically confirmed gastroenteritis, with substantiation of acute illness by health record review. Presence of dyspepsia at 8 years, according to a broad definition (any symptom referable to the upper gastrointestinal tract), and the Rome II criteria was compared between exposed and non-exposed individuals. RESULTS:: Of 2597 subjects eligible, 1088 (41.9%) provided data for analysis, 706 (64.9%) had reported acute gastroenteritis. Multivariate odd ratios for dyspepsia at 8 years in exposed individuals using a broad definition and the Rome II definition were 2.09 (95% CI 1.58 to 2.78) and 2.30 (95% CI 1.63 to 3.26) respectively. Prevalence of dyspepsia was higher in females, smokers, those with pre-morbid irritable bowel syndrome, anxiety, or depression, and those reporting > 7 days of diarrhea or abdominal cramps during the acute illness. CONCLUSIONS:: Symptoms of dyspepsia 8 years after an outbreak of acute gastroenteritis were significantly more prevalent in exposed compared with non-exposed individuals.

PMID: 20117111 [PubMed - as supplied by publisher]

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