Background: The purpose was to estimate the incidence and characteristics of childhood inflammatory bowel disease (IBD) during 2000–2010 in Shanghai, China.
Methods: IBD patients between the ages of 0 and 18 years old were identified by survey of computerized medical information. Relevant data were extracted from their corresponding medical records.
Results: A total of 153 IBD cases were included in the study. Among them, 107 were males and 46 were females (male/female ratio, 2.3:1.0). Eighty-two had Crohn's disease (CD) and 71 had ulcerative colitis (UC). The peak prevalence of IBD was observed in the 10–14-year-old age group. The annual incidence of IBD in the 0 to 14 years age group of Shanghai residents steadily increased from 2000 to 2010. The most common symptoms of IBD were diarrhea (68.6%), bloody stool (68.6%), and abdominal pain (61.4%). More CD than UC patients had anemia and raised erythrocyte sedimentation rate and C-reactive protein levels. Ileocolonic type disease was more common in CD patients, and left-side colon involvement was more common in UC. Of all CD patients, 33 had mild active disease and 49 had moderate/severe disease. In UC patients, 34 were mild and 37 were moderate/severe disease.
Conclusions: This retrospective, multicenter hospital-based study over a decade shows a steadily increasing trend of childhood IBD in China. This suggests a need for population-based epidemiological studies to explore the risk factors.
Article first published online 21 January 2013
*Department of Pediatrics, Shanghai Ruijin Hospital Affiliated with the School of Medicine, Shanghai Jiaotong University, Shanghai, China
†Department of Gastroenterology, Shanghai Children's Medical Center Affiliated with the School of Medicine, Shanghai Jiaotong University, Shanghai, China
‡Department of Gastroenterology, Children's Hospital of Fudan University, Shanghai, China
§Department of Pediatrics, Xinhua Hospital Affiliated with the School of Medicine, Shanghai Jiaotong University, Shanghai, China
‖Department of Biostatistics, Shanghai Jiao Tong University, School of Medicine, Shanghai, China.
Reprints: Chun-di Xu, No. 197 Ruijin Er Road, Shanghai, 200025, China (e-mail: firstname.lastname@example.org).
Received May 22, 2012
Accepted May 29, 2012