ABSTRACT
Aim: To record the incidence and prevalence ofinflammatory bowel disease (IBD), its social demographics,clinical characteristics and treatment, in the state of Johor,Malaysia.Methods: Hospital Sultanah Aminah, Johor Bahru, is the onlypublic hospital in Johor with a Gastroenterology service.Data on all existing and new IBD patients managed by theGastroenterology Unit in 2016 were collected. Incidence andprevalence of IBD in 2016 were then calculated based on theestimated population of Johor and Johor Bahru.Results: Twenty-five new cases of IBD were diagnosed in2016. Among the 25 cases, 13 cases were Crohn’s disease(CD), 10 were ulcerative colitis (UC) and two were IBDUnclassified (IBDU). The crude incidence of IBD, CD, UC andIBDU were 0.68, 0.36, 0.27, and 0.05 per 100,000 populationrespectively. Ethnic Indians had the highest incidence of IBDat 4.21 followed by Malays and Chinese at 0.56 and 0.18 per100,000 population respectively. A total of 156 IBD caseswere captured. Amongst them, 85 cases were UC, 68 caseswere CD and three cases were IBDU, hence the prevalence ofIBD, UC, CD and IBDU were 4.27, 2.33, 1.86 and 0.08 per100,000 population respectively. Similarly, Indians had thehighest prevalence at 16.84, followed by Chinese at 4.06 andMalays at 3.44 per 100,000 population.Conclusions: The incidence of IBD in Johor is comparable tothat of a previous study in northern Peninsular Malaysia.The ethnicity preponderance is similar to the previousstudies conducted in Malaysia.