Systematic review with meta-analysis: post-infectious irritable bowel syndrome after travellers' diarrhoea Schwille-Kiuntke J1, Mazurak N, Enck P. Aliment Pharmacol Ther. 2015 Apr 13. doi: 10.1111/apt.13199. [Epub ahead of print] |
Author information 1Department of Internal Medicine VI: Psychosomatic Medicine and Psychotherapy, University Hospital Tuebingen, Tuebingen, Germany. Abstract BACKGROUND: Gastrointestinal infection is known as a risk factor for the development of the irritable bowel syndrome (post-infectious irritable bowel syndrome, PI-IBS). The incidence of PI-IBS ranges between 3% and over 30% of people after infectious gastroenteritis. AIM: To perform a meta-analysis pools and report data concerning the relative risk (RR) of PI-IBS after TD. METHODS: Database search using Medline through PubMed, Scopus, EBM Reviews (Cochrane Database of Systematic Reviews) and PsycINFO was performed to identify relevant studies. Those that met the inclusion criteria were pooled. A random effects model (Mantel-Haenszel) was performed. RESULTS: Six eligible studies were found. In three of six studies, the authors reported a statistically significant association of TD and PI-IBS. The pooled RR was 3.35 (95% CI: 2.22-5.05) with a significant overall effect (P < 0.00001). Overall PI-IBS incidence was 5.4% in TD subjects and 1.4% in healthy subjects. There was no significant heterogeneity within the pooled studies (I2 = 5%). Self-reported TD alone resulted in an over 1.5-fold RR for PI-IBS compared to laboratory-confirmed TD [RR 3.90 (95% CI: 2.35-6.49) vs. RR 2.42 (95% CI: 1.22-4.78)]. CONCLUSIONS: There is a strong association between travellers' diarrhoea and post-infectious irritable bowel syndrome. Self-reports of exposure seem to result in a higher post-infectious irritable bowel syndrome occurrence than laboratory-confirmed cases of travellers' diarrhoea, but further studies are needed to confirm this finding. Finally, potential influences of the selection of an appropriate study population on post-infectious irritable bowel syndrome epidemiology are discussed. |
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