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Background: Inflammatory bowel disease (IBD) incidence has been increased in Iran as a developing country. Surveillance is a standard method for accessing valid data about disease epidemiology to make relevant decisions for disease control, prevention, and management. We designed Isfahan IBD Surveillance Project (IISP) to make a surveillance system in this area. Methods: The project is designed in 3 phases. At the first phase, a model of step-wise approach (core, expanded core, and optional variables) for IBD surveillance was designed and implemented among IBD patients registered at a major referral gastrointestinal diseases clinic in Isfahan. Data bank program and its software were designed with suitable and multifunctional features. A total of 352 IBD cases were registered to data bank and analyzed as a pilot study of IISP. Results: A total of 352 IBD patients, including 245 ulcerative colitis (UC), 80 Crohn's disease (CD), and 27 indeterminate colitis, were registered to the data bank. Bloody stool and abdominal cramp were the most common presentation symptom among UC and CD, respectively. Extensive pancolitis was the most prevalent phenotype (40%) of UC. Over two-thirds of our IBD patients were in remission states. Biologic agents had been prescribed in about 10% of patients during disease. Primary sclerosing cholangitis was detected in about 7% and 10% of CD and UC patients, respectively. Conclusions: Valid data from a standard surveillance system are a relevant, trustworthy tool for making decision by health policy-makers. Integrated comprehensive interventional programs for disease control and management is the second phase of IISP. [ABSTRACT FROM AUTHOR]

Background: Ulcerative colitis is a recurrent inflammatory disorder of the colonic mucosa with a growing global prevalence. Diet is known as a key factor related to the risk of developing UC. This study aimed to determine the association between dietary patterns and UC risk., Methods: In this case-control study, participants' dietary data were recorded using a 168-item Food Frequency Questionnaire, and then the obtained information was classified into 33 food groups. To identify major dietary patterns, a factor analysis method was applied. Multivariable logistic regression was performed to identify the association between identified dietary patterns and UC risk., Results: Data of 81 patients, who suffered from UC, and 163 healthy controls were assessed. Three dietary patterns were identified and named as "western", "traditional", and "healthy" dietary patterns. After the potential confounders were taken into account, the healthy dietary pattern was associated with a reduced odds of UC (OR = 0.22, 95% CI = 0.08-0.57, p < 0.05), whilst the traditional dietary pattern was related to a greater risk of the disease (OR = 4.67, 95% CI = 3.55-23.36, p < 0.05). However, we failed to find any significant relationship between the western dietary pattern and UC risk., Conclusion: The present study suggested that adherence to a healthy diet might decrease the risk of developing UC, whereas, following Iranian traditional dietary patterns could enhance the odds of the outcome., Competing Interests: Declaration of competing interest The authors declare no conflict of interest., (Copyright © 2022 European Society for Clinical Nutrition and Metabolism. Published by Elsevier Ltd. All rights reserved.)