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Gastroenterology Research and Practice
Volume 2014, Article ID 198461, 6 pages
Research Article

A Cross-Sectional Study of Risk Factors for Irritable Bowel Syndrome in Children 8–13 Years of Age in Suzhou, China

1Department of Neonatology, Soochow University Affiliated Children's Hospital, Suzhou 215003, China
2Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
3Department of Intervention, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
4Statistics Office, Soochow University, Suzhou 215000, China

Received 9 March 2014; Revised 22 April 2014; Accepted 23 April 2014; Published 11 May 2014

Academic Editor: Paul Enck

Copyright © 2014 Xueping Zhu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


To determine the prevalence and risk factors of IBS in children 8–13 years of age in Suzhou city, a cross-sectional study was conducted on children in grades 1 through 6 in public elementary schools in three districts of Suzhou. A multistage stratified random-sampling survey was conducted in a primary investigation using standardized questionnaires. Rome II criteria were used to confirm IBS and their risk factors were analyzed. Of 8,000 questionnaires 7,472 responded satisfactorily for a response rate of 93.4%. IBS was diagnosed in 10.81%. A decrease in the prevalence of IBS was significantly associated with advancing age and grade in school (trend test, ). The prevalence of IBS in females was higher but not significantly different than males. The significant risk factors for IBS included young age (OR = 0.94), food allergy (OR = 1.53), gastroenteritis during childhood (OR = 1.29), eating fried food (OR = 1.62), anxiety (OR = 1.49), psychological insults in early childhood (OR = 1.47), and parental history of constipation (OR = 1.81; all ). IBS prevalence of 10.81% in study population warrants preventive measures such as encouraging dietary changes, preventing gastroenteritis and childhood psychological insults.