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Intest Res > Volume 10(2); 2012 > Article
Intestinal Research 2012;10(2):161-167.
DOI: https://doi.org/10.5217/ir.2012.10.2.161    Published online April 30, 2012.
Seasonal Variation in Flares of Inflammatory Bowel Disease in a Korean Population
Jae Hyun Jang, Su Hee Lee, Jun Mo Sung, Jung Ho Park, Hong Joo Kim, Yong Kyun Cho, Chong Il Sohn, Woo Kyu Jeon, Byung Ik Kim, Dong Il Park
Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
한국인에서 염증성 장질환 급성 악화의 계절적 변화
장재현, 이수희, 성준모, 박정호, 김홍주, 조용균, 손정일, 전우규, 김병익, 박동일
성균관대학교 의과대학 강북삼성병원 내과학교실
Abstract
Background/Aims
Conflicting data have been reported about the seasonal variation in flare-up of inflammatory bowel disease (IBD). The aim of this study was to assess the occurrence of seasonal variations in flare-up of IBD in the Korean population. Methods: Patients with IBD, who underwent more than 1 year of follow-up and showed more than 1 episode of flare-up, were included. Flares of disease were refined as follows; receipt of a new prescription and increasing dose of corticosteroids, 5-ASA or immunosuppressant; hospitalized or operated due to development and worsening of symptoms; elevation of inflammatory marker due to worsening of Crohn's Disease Activity Index (CDAI) or Mayo score. In addition, for patients with more than two episodes of flare-up, they were investigated in a monthly and seasonal pattern. Results: Of 573 patients with IBD, 46 patients with Crohn's disease and 61 patients with ulcerative colitis were enrolled. There was no association between month of the year and flare of Crohn's disease (P=0.06) or ulcerative colitis (P=0.58). Further, no association between season of the year and flare of Crohn's disease (P=0.06) or ulcerative colitis (P=0.68). However, in Crohn's disease who experience 2 or more flare-ups, symptoms occurred more frequently during winter, especially December (P=0.029). Conclusions: In the Korean population, there was no association of seasonal and monthly variation in flares of Crohn's disease and ulcerative colitis. However, in Crohn's disease, individuals with 2 flar-up or more, symptoms occurred more frequently during December. (Intest Res 2012;10: 0-167)
Key Words: Crohn Disease, Colitis, Ulcerative, Flare, Seasons
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