Prevalence of inflammatory bowel disease in two districts of Sri Lanka: a hospital based survey
Inflammatory bowel disease (IBD) is being increasingly diagnosed in Asia. However there are few epidemiological data from the region.
Methods: To determine prevalence and clinical characteristics of IBD, a hospital-based survey was performed in the Colombo and Gampaha districts (combined population 4.5 million) in Sri Lanka.
Patients with established ulcerative colitis (UC) and Crohn's disease (CD), who were permanent residents of these adjoining districts, were recruited from hospital registries and out-patient clinics. Clinical information was obtained from medical records and patient interviews.
Results: There were 295 cases of IBD (UC=240, CD=55).
The prevalence rate for UC was 5.3/100,000 (95% CI 5.0-5.6/100,000), and CD was 1.2/100,000 (95% CI 1.0-1.4/100,000). Female:male ratios were 1.5 for UC and 1.0 for CD.
Mean age at diagnosis was (males and females) 36.6 and 38.1y for UC and 33.4 and 36.2y for CD. Among UC patients, 51.1% had proctitis and at presentation 58.4% had mild disease.
87.3% of CD patients had large bowel involvement. Few patients had undergone surgery.
Conclusions: The prevalence of IBD in this population was low compared to Western populations, but similar to some in Asia.
There was a female preponderance for UC. UC was mainly mild, distal or left-sided, while CD mainly involved the large bowel.
Author: Madunil NiriellaArjuna De silvaAsangi DayaratneMadurangi AriyasingheMetthanandha NavaratneRanjith PeirisD Nandadeva SamarasekeraRaveendra SatharasingheSharman RajindrajithAnuradha DassanayakeA Rajitha WickramasingheH Janaka De silva
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Published on: 2010-03-19
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