1. Cosnes J, Cattan S, Blain A, Beaugerie L, Carbonnel F, Parc R, Gendre JP. Long-term evolution of disease behavior of Crohn's disease. Inflamm Bowel Dis 2002;8:244-250.
2. Solberg IC, Vatn MH, Hoie O, Stray N, Sauar J, Jahnsen J, Moum B, Lygren I; IBSEN Study Group. Clinical course in Crohn's disease: results of a Norwegian population-based ten-year follow-up study. Clin Gastroenterol Hepatol 2007;5:1430-1438.
3. Yang Y, Owyang C, Wu GD. East meets west: the increasing incidence of inflammatory bowel disease in asia as a paradigm for environmental effects on the pathogenesis of immune-mediated disease. Gastroenterology 2016;151:e1-e5.
4. Ng SC, Shi HY, Hamidi N, Underwood FE, Tang W, Benchimol EI, Panaccione R, Ghosh S, Wu JCY, Chan FKL, Sung JJY, Kaplan GG. Worldwide incidence and prevalence of inflammatory bowel disease in the 21st century: a systematic review of population-based studies. Lancet 2017;390:2769-2778.
6. Yen HH, Weng MT, Tung CC, Wang YT, Chang YT, Chang CH, Shieh MJ, Wong JM, Wei SC. Epidemiological trend in inflammatory bowel disease in Taiwan from 2001 to 2015: a nationwide population-based study. Intest Res 2019;17:54-62.
9. Moon CM, Jung SA, Kim SE, Song HJ, Jung Y, Ye BD, Cheon JH, Kim YS, Kim YH, Kim JS, Han DS; CONNECT study group. Clinical factors and disease course related to diagnostic delay in Korean Crohn's disease patients: results from the CONNECT study. PLoS One 2015;10:e0144390.
13. Yang SK, Yun S, Kim JH, Park JY, Kim HY, Kim YH, Chang DK, Kim JS, Song IS, Park JB, Park ER, Kim KJ, Moon G, Yang SH. Epidemiology of inflammatory bowel disease in the Songpa-Kangdong district, Seoul, Korea, 1986-2005: a KASID study. Inflamm Bowel Dis 2008;14:542-549.
14. Park SH, Kim YJ, Rhee KH, Kim YH, Hong SN, Kim KH, Seo SI, Cha JM, Park SY, Jeong SK, Lee JH, Park H, Kim JS, Im JP, Yoon H, Kim SH, Jang J, Kim JH, Suh SO, Kim YK, Ye BD, Yang SK; Songpa-Kangdong Inflammatory Bowel Disease [SK-IBD] Study Group. A 30-year trend analysis in the epidemiology of inflammatory bowel disease in the Songpa-Kangdong district of Seoul, Korea in 1986-2015. J Crohns Colitis 2019;13:1410-1417.
15. Korean Association for the Study of Intestinal Diseases. 2020 Inflammatory bowel disease fact sheet in Korea [Internet]. Seoul: Korean Association for the Study of Intestinal Diseases. 2020 [cited 2021 Aug 9]. Available from:
http://m.kasid.org/file/IBM/IBD%20fact%20sheet_1217.pdf
16. Kim HJ, Hann HJ, Hong SN, Kim KH, Ahn IM, Song JY, Lee SH, Ahn HS. Incidence and natural course of inflammatory bowel disease in Korea, 2006-2012: a nationwide population-based study. Inflamm Bowel Dis 2015;21:623-630.
17. Jung YS, Han M, Kim WH, Park S, Cheon JH. Incidence and Clinical outcomes of inflammatory bowel disease in South Korea, 2011-2014: a nationwide population-based study. Dig Dis Sci 2017;62:2102-2112.
18. Kwak MS, Cha JM, Lee HH, Choi YS, Seo SI, Ko KJ, Park DI, Kim SH, Kim TJ. Emerging trends of inflammatory bowel disease in South Korea: a nationwide population-based study. J Gastroenterol Hepatol 2019;34:1018-1026.
20. Arai K, Kunisaki R, Kakuta F, Hagiwara SI, Murakoshi T, Yanagi T, Shimizu T, Kato S, Ishige T, Aomatsu T, Inoue M, Saito T, Iwama I, Kawashima H, Kumagai H, Tajiri H, Iwata N, Mochizuki T, Noguchi A, Kashiwabara T, Shimizu H, Suzuki Y, Hirano Y, Fujiwara T. Phenotypic characteristics of pediatric inflammatory bowel disease in Japan: results from a multicenter registry. Intest Res 2020;18:412-420.
22. Ye BD, Kim JW, Han DS, Youn EJ, Lee JH, Kim HS, Park SJ, Kim HS, Kim YS, Kim YH, Choi CH, Lee KM, Lee CK, Yang SK, Kim HJ, Kim WH. Clinical features of Crohn's disease at diagnosis: a Korean multicenter nationwide cohort study. J Crohns Colitis 2013;7 Suppl 1:S275.
24. Bernstein CN, Wajda A, Svenson LW, MacKenzie A, Koehoorn M, Jackson M, Fedorak R, Israel D, Blanchard JF. The epidemiology of inflammatory bowel disease in Canada: a population-based study. Am J Gastroenterol 2006;101:1559-1568.
25. Vind I, Riis L, Jess T, Knudsen E, Pedersen N, Elkjaer M, Bak Andersen I, Wewer V, Nørregaard P, Moesgaard F, Bendtsen F, Munkholm P; DCCD study group. Increasing incidences of inflammatory bowel disease and decreasing surgery rates in Copenhagen City and County, 2003-2005: a population-based study from the Danish Crohn colitis database. Am J Gastroenterol 2006;101:1274-1282.
27. Park JB, Yang SK, Byeon JS, Park ER, Moon G, Myung SJ, Park WK, Yoon SG, Kim HS, Lee JG, Kim JH, Il Min Y, Kim KY. Familial occurrence of inflammatory bowel disease in Korea. Inflamm Bowel Dis 2006;12:1146-1151.
29. Hwang SW, Kwak MS, Kim WS, Lee JM, Park SH, Lee HS, Yang DH, Kim KJ, Ye BD, Byeon JS, Myung SJ, Yoon YS, Yu CS, Kim JH, Yang SK. Influence of a positive family history on the clinical course of inflammatory bowel disease. J Crohns Colitis 2016;10:1024-1032.
30. Kim HJ, Shah SC, Hann HJ, Kazmi SZ, Kang T, Lee JH, Kim KB, Kang MJ, Ahn HS. Familial risk of inflammatory bowel disease: a population-based cohort study in South Korea. Clin Gastroenterol Hepatol 2020;Oct. 1. [Epub].
https://doi.org/10.1016/j.cgh.2020.09.054
31. Jacobsen BA, Fallingborg J, Rasmussen HH, Nielsen KR, Drewes AM, Puho E, Nielsen GL, Sørensen HT. Increase in incidence and prevalence of inflammatory bowel disease in northern Denmark: a population-based study, 1978-2002. Eur J Gastroenterol Hepatol 2006;18:601-606.
32. Samuel S, Ingle SB, Dhillon S, Yadav S, Harmsen WS, Zinsmeister AR, Tremaine WJ, Sandborn WJ, Loftus EV Jr. Cumulative incidence and risk factors for hospitalization and surgery in a population-based cohort of ulcerative colitis. Inflamm Bowel Dis 2013;19:1858-1866.
33. Moum B, Vatn MH, Ekbom A, Aadland E, Fausa O, Lygren I, Stray N, Sauar J, Schulz T. Incidence of Crohn's disease in four counties in southeastern Norway, 1990-93. A prospective population-based study. The Inflammatory Bowel South-Eastern Norway (IBSEN) Study Group of gastroenterologists. Scand J Gastroenterol 1996;31:355-361.
34. Sjoberg D, Holmström T, Larsson M, Nielsen AL, Holmquist L, Ekbom A, Ronnblom A. Incidence and clinical course of Crohn's disease during the first year: results from the IBD Cohort of the Uppsala Region (ICURE) of Sweden 2005-2009. J Crohns Colitis 2014;8:215-222.
35. Ye BD, Yang SK, Cho YK, Park SH, Yang DH, Yoon SM, Kim KJ, Byeon JS, Myung SJ, Yu CS, Kim JH. Clinical features and long-term prognosis of Crohn's disease in Korea. Scand J Gastroenterol 2010;45:1178-1185.
36. American Gastroenterological Association Clinical Practice Committee. American Gastroenterological Association medical position statement: perianal Crohn's disease. Gastroenterology 2003;125:1503-1507.
39. Choi CH, Jung SA, Lee BI, Lee KM, Kim JS, Han DS; IBD Study Group of the Korean Association of the Study of Intestinal Diseases. Diagnostic guideline of ulcerative colitis. Korean J Gastroenterol 2009;53:145-160.
40. Ye BD, Jang BI, Jeen YT, Lee KM, Kim JS, Yang SK; IBD Study Group of the Korean Association of the Study of Intestinal Diseases. Diagnostic guideline of Crohn's disease. Korean J Gastroenterol 2009;53:161-176.
41. Danese S, Fiorino G, Mary JY, Lakatos PL, D'Haens G, Moja L, D'Hoore A, Panes J, Reinisch W, Sandborn WJ, Travis SP, Vermeire S, Peyrin-Biroulet L, Colombel JF. Development of red flags index for early referral of adults with symptoms and signs suggestive of Crohn's disease: an IOIBD initiative. J Crohns Colitis 2015;9:601-606.
43. Seo H, Lee S, So H, Kim D, Kim SO, Soh JS, Bae JH, Lee SH, Hwang SW, Park SH, Yang DH, Kim KJ, Byeon JS, Myung SJ, Yang SK, Ye BD. Temporal trends in the misdiagnosis rates between Crohn's disease and intestinal tuberculosis. World J Gastroenterol 2017;23:6306-6314.
44. Lee YJ, Yang SK, Byeon JS, Myung SJ, Chang HS, Hong SS, Kim KJ, Lee GH, Jung HY, Hong WS, Kim JH, Min YI, Chang SJ, Yu CS. Analysis of colonoscopic findings in the differential diagnosis between intestinal tuberculosis and Crohn's disease. Endoscopy 2006;38:592-597.
45. Bae JH, Park SH, Ye BD, Kim SO, Cho YK, Youn EJ, Lee HS, Hwang SW, Yang DH, Kim KJ, Byeon JS, Myung SJ, Yang SK. Development and validation of a novel prediction model for differential diagnosis between Crohn's disease and intestinal tuberculosis. Inflamm Bowel Dis 2017;23:1614-1623.
46. Limsrivilai J, Pausawasdi N. Intestinal tuberculosis or Crohn's disease: a review of the diagnostic models designed to differentiate between these two gastrointestinal diseases. Intest Res 2021;19:21-32.
47. Burisch J, Pedersen N, Cukovic-Cavka S, Brinar M, Kaimakliotis I, Duricova D, Shonova O, Vind I, Avnstrom S, Thorsgaard N, Andersen V, Krabbe S, Dahlerup JF, Salupere R, Nielsen KR, Olsen J, Manninen P, Collin P, Tsianos EV, Katsanos KH, Ladefoged K, Lakatos L, Bjornsson E, Ragnarsson G, Bailey Y, Odes S, Schwartz D, Martinato M, Lupinacci G, Milla M, De Padova A, D'Inca R, Beltrami M, Kupcinskas L, Kiudelis G, Turcan S, Tighineanu O, Mihu I, Magro F, Barros LF, Goldis A, Lazar D, Belousova E, Nikulina I, Hernandez V, Martinez-Ares D, Almer S, Zhulina Y, Halfvarson J, Arebi N, Sebastian S, Lakatos PL, Langholz E, Munkholm P; EpiCom-group. East-West gradient in the incidence of inflammatory bowel disease in Europe: the ECCO-EpiCom inception cohort. Gut 2014;63:588-597.