ArticleWorld journal of gastroenterology2013
Seasonal variations in the onset of ulcerative colitis in Japan.
Article in World journal of gastroenterology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
7 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Pooled it
- Association between nonalcoholic fatty liver disease and incidence of inflammatory bowel disease: a nationwide population‑based cohort study.Intestinal research · 2025Article
- Association between ulcerative colitis andHeliyon · 2022Article
- Elevated hypertriglyceridemia and decreased gallstones in the etiological composition ratio of acute pancreatitis as affected by seasons and festivals: A two-center real-world study from China.Frontiers in cellular and infection microbiology · 2022Article
- Seasonal Clock Changes Are Underappreciated Health Risks-Also in IBD?Frontiers in medicine · 2019Article
- Age at onset is associated with the seasonal pattern of onset and exacerbation in inflammatory bowel disease.Journal of gastroenterology · 2017Observational
- Epidemiologic Characteristics of Patients with Inflammatory Bowel Disease in Kermanshah, Iran.Middle East journal of digestive diseases · 2017Article
Corrections and comments
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Authors and funding
12 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
aimTo investigate seasonal variations in the onset and relapse of ulcerative colitis (UC) in Japanese patients.
methodsBetween 1994 and 2006, 198 Japanese patients diagnosed with UC according to conventional criteria in an academic hospital were enrolled for onset evaluation. Among 265 Japanese patients with UC who were observed for more than 12 mo, 165 patients relapsed (239 times) and were enrolled for relapse evaluation. The patients' symptoms were recorded each month for 12 consecutive years.
resultsThere was monthly seasonality in symptom onset during October and March for UC. The onset of symptoms in UC patients frequently occurred during the winter. Variation in UC onset was observed according to both month (P = 0.015) and season (P = 0.048). Relapse commonly occurred in October, and variations in relapse were not significant either in month (P = 0.52) or season (P = 0.12). Upper respiratory inflammation was the main factor responsible for relapse.
conclusionOur results suggest that environmental factors associated with winter and spring seasonality may be responsible for triggering the clinical onset of UC in Japan.
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