• J Formos Med Assoc · Jan 2025

    Epidemiology and temporal trends of adult inflammatory bowel disease in Taiwan: Multicenter study from the TSIBD registration.

    • Chih-Wen Huang, Shu-Chen Wei, Ming-Jium Shieh, Jen-Wei Chou, Chiao-Hsiung Chuang, Horng-Yuan Wang, Chen-Wang Chang, Deng-Chyang Wu, Tien-Yu Huang, Yu-Hwa Liu, Tzung-Jiun Tsai, Wei-Chen Tai, Chi-Ming Tai, Chen-Shuan Chung, Wen-Sy Tsai, Chung-Hsin Chang, Ching-Pin Lin, Hsi-Chang Lee, Chun-Chao Chang, I-Che Feng, Chun-Chi Lin, Mu-Liang Cheng, and Hsu-Heng Yen.
    • Division of Gastroenterology, Changhua Christian Hospital, Changhua, Taiwan; Graduate Institute of Clinical Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan; Taiwan Society of Inflammatory Bowel Disease (TSIBD), Taiwan.
    • J Formos Med Assoc. 2025 Jan 31.

    BackgroundDespite industrialization and advances in healthcare, the prevalence of inflammatory bowel disease (IBD), which encompasses Crohn's disease (CD) and ulcerative colitis (UC), is increasing in Taiwan. Population-based studies can estimate the incidence or prevalence of IBD; however, there is a lack of information regarding the disease phenotype. Therefore, this study was designed to investigate the epidemiologic trends of IBD in Taiwan to gain a more comprehensive understanding.MethodsPatient data were reviewed from a prospectively registered study by the Taiwan Society of IBD (TSIBD).ResultsWe collected data from 2752 patients with IBD, of whom 881 had CD and 1871 had UC. Their average age was 41.99 ± 15.19 years. The CD group had more male patients than the UC group (67.88% vs. 60.72%; p < .001). The rates of appendectomy, bowel resection, and surgery for perianal disease before IBD diagnosis, along with the increased use of steroids, immunomodulators, and biologics, were higher in the CD group. From 2005 to 2023, the ratio of UC to CD cases in Taiwan decreased, the proportions of patients with colonic and penetrating CD also declined, and the proportion of patients with UC exhibiting ulcerative proctitis increased.ConclusionIn Taiwan, similar to high-income countries, the ratio of UC to CD cases has declined. The reduced of colonic and penetrating CD indicates that diagnostic awareness has improved and colonoscopic examination has become more comprehensive in Taiwan.Copyright © 2025 Formosan Medical Association. Published by Elsevier B.V. All rights reserved.

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