Epidemiology of Inflammatory Bowel Disease in the Songpa-Kangdong District, Seoul, Korea.
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Purpose
The purpose of this study is to evaluate the incidence, prevalence, clinical characteristics and prognosis of Crohn's disease and ulcerative colitis over time in a district of Seoul, Korea.
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Crohn's Disease Ulcerative Colitis Epidemiology Korea |
| Study Type: | Observational |
| Study Design: | Observational Model: Cohort |
| Official Title: | Epidemiology of Inflammatory Bowel Disease in the Songpa-Kangdong District, Seoul, Korea. |
- Incidence rate and prevalence rate of IBD [ Time Frame: 1986-2017 (up to 31 years) ] [ Designated as safety issue: No ]
- Annual incidence rate of Crohn's disease and ulcerative colitis
- Prevalence rate of Crohn's disease and ulcerative colitis as of Dec 31, 2017.
- Clinical features of patients with IBD [ Time Frame: 1986-2017 (up to 31 years) ] [ Designated as safety issue: No ]
- Clinical characteristics of patients newly diagnosed with Crohn's disease or ulcerative colitis: gender, presenting symptoms, duration between symptoms to diagnosis, and phenotypes, etc.
- Clinical course of patients newly diagnosed with Crohn's disease or ulcerative colitis: development of complications (strictures, perforations), intestinal resection rate, hospitalization rate, mortality, and pregnancies and their outcomes
- Treatment modalities of IBD and their trends: use of medication (5-ASA, corticosteroids, immunomodulators, and biologic agents, etc.)
| Estimated Enrollment: | 2000 |
| Study Start Date: | December 2012 |
| Estimated Study Completion Date: | June 2018 |
| Estimated Primary Completion Date: | December 2017 (Final data collection date for primary outcome measure) |
| Groups/Cohorts |
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The Songpa-Kangdong cohort of IBD
Incident cases of IBD in the Songpa-Kangdong district, a well-defined administrative area in Seoul, the capital of Korea, beginning in 1986, when the first patient with IBD was diagnosed, until 2017. For the prevalent cases, the inhabitants with IBD at Dec 31, 2007 in the Songpa-Kangdong district are included.
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Detailed Description:
Inflammatory bowel disease (IBD), which is comprised of Crohn's disease (CD) and ulcerative colitis (UC) is a chronic inflammatory disease of gut with uncertain etiopathogenesis. According to our previous study (Yang, et al. Inflamm Bowel Dis 2008; 14: 542-549), the incidence and prevalence of IBD in Korea are still low compared with those in Western countries, but are rapidly increasing. However, the long-term trends of epidemiology of CD and UC together with their characteristics and prognosis in Korea are uncertain yet. The investigators therefore aim to elucidate the incidence and prevalence of CD and UC over a 30-year period, from 1986 to 2017, in the Songpa-Kangdong district of Seoul, Korea. In addition, the investigators also aim to reveal the clinical features at the time of diagnosis of IBD, long-term evolution of disease and prognosis.
Eligibility| Genders Eligible for Study: | Both |
| Accepts Healthy Volunteers: | No |
| Sampling Method: | Probability Sample |
The study is performed in the Songpa-Kangdong district, a well-defined administrative area in Seoul, the capital of Korea, beginning in 1986, when the first patient with IBD was diagnosed, until 2017. The population of the study area was racially and ethnically homogeneous and was relatively stable in number.
Inclusion Criteria:
- Definite cases of CD and UC
Patients are diagnosed with CD if they meet at least 2 of the following criteria:
- clinical history of abdominal pain, weight loss, malaise, diarrhea, and/or rectal bleeding
- endoscopic findings of mucosal cobblestoning, linear ulceration, skip areas, or perianal disease
- radiologic findings of stricture, fistula, mucosal cobblestoning, or ulceration
- macroscopic appearance of bowel wall induration, mesenteric lymphadenopathy, and "creeping fat" at laparotomy
- pathologic findings of transmural inflammation and/or epithelioid granulomas
Only patients who meet these criteria for at least 2 months are included.
Patients are diagnosed with UC only if all 3 of the following criteria are present
- a typical history of diarrhea or blood and pus or both in the stool for longer than 4 weeks
- a typical sigmoidoscopic or colonoscopic picture with diffusely granular, friable, or ulcerated mucosa without rectal sparing or skip lesions or radiological signs of characteristic continuous granular or ulcerated mucosa
- characteristic histopathological signs of inflammation on biopsy
Exclusion Criteria:
- IBD unclassified
- Ethnic groups other than Korean
Contacts and LocationsPlease refer to this study by its ClinicalTrials.gov identifier: NCT01731665
| Contact: Suk-Kyun Yang, M.D. | +82-2-3010-3901 | sky@amc.seoul.kr | |
| Contact: Byong Duk Ye, M.D. | +82-2-3010-3181 | bdye@amc.seoul.kr |
| Korea, Republic of | |
| Asan Medical Center | Recruiting |
| Seoul, Korea, Republic of, 138-736 | |
| Contact: Suk-Kyun Yang, M.D. +82-2-3010-3901 sky@amc.seoul.kr | |
| Contact: Byong Duk Ye, M.D. +82-2-3010-3181 bdye@amc.seoul.kr | |
| Principal Investigator: Suk-Kyun Yang, M.D. | |
| Principal Investigator: | Suk-Kyun Yang, M.D. | Asan Medical Center |
More Information
Publications:
| Responsible Party: | Suk-Kyun Yang, Professor, Asan Medical Center |
| ClinicalTrials.gov Identifier: | NCT01731665 History of Changes |
| Other Study ID Numbers: | 2012-0634 |
| Study First Received: | November 18, 2012 |
| Last Updated: | January 12, 2015 |
| Health Authority: | South Korea: Institutional Review Board |
Keywords provided by Asan Medical Center:
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Crohn's disease ulcerative colitis epidemiology Korea |
Additional relevant MeSH terms:
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Colitis Colitis, Ulcerative Crohn Disease Inflammatory Bowel Diseases Intestinal Diseases Ulcer |
Colonic Diseases Digestive System Diseases Gastroenteritis Gastrointestinal Diseases Pathologic Processes |
ClinicalTrials.gov processed this record on February 25, 2015