ArticleClinical epidemiology2021
Incidence of Inflammatory Bowel Disease in South Asian and Chinese People: A Population-Based Cohort Study from Ontario, Canada.
Article in Clinical epidemiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed, 25 citations in OpenAlex.
- Perception of care in immigrant and nonimmigrant persons with inflammatory bowel disease: a survey-based study.Journal of the Canadian Association of Gastroenterology · 2026Article
- A Population-Based Matched Cohort Study of Extra-Digestive Cancer Incidence and Mortality in Individuals With and Without Inflammatory Bowel Disease.Alimentary pharmacology & therapeutics · 2026Article
- Article
- The adoption of a westernized gut microbiome in Indian Immigrants and Indo-Canadians is associated with dietary acculturation.NPJ biofilms and microbiomes · 2025Article
- Unveiling the fungal frontier: mycological insights into inflammatory bowel disease.Frontiers in immunology · 2025Review
- Neutrophils: From Inflammatory Bowel Disease to Colitis-Associated Colorectal Cancer.Journal of inflammation research · 2025Review
- Post-traumatic stress disorder symptoms are frequent among inflammatory bowel disease patients of South Asian descent-A case-control study.Indian journal of gastroenterology : official journal of the Indian Society of Gastroenterology · 2024Article
- Global evolving patterns and cross-country inequalities of inflammatory bowel disease burden from 1990 to 2019: a worldwide report.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2024Article
- Inflammatory bowel disease: a narrative review of disease evolution in South Asia and India over the last decade.Therapeutic advances in gastroenterology · 2024Review
- Methods for retrospectively improving race/ethnicity data quality: a scoping review.Epidemiologic reviews · 2023Article
- The 2023 Impact of Inflammatory Bowel Disease in Canada: Epidemiology of IBD.Journal of the Canadian Association of Gastroenterology · 2023Review
- Role of Diet-Microbiome Interaction in Gastrointestinal Disorders and Strategies to Modulate Them with Microbiome-Targeted Therapies.Annual review of nutrition · 2023Review
- The epidemiology of inflammatory bowel disease in Asia and Asian immigrants to Western countries.United European gastroenterology journal · 2022Review
- The epidemiology of inflammatory bowel disease: Clues to pathogenesis?Frontiers in pediatrics · 2022Review
Corrections and comments
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Authors and funding
7 authors at 5 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundInflammatory bowel disease (IBD) is now a global disease with incidence increasing throughout Asia.
aimTo determine the incidence of IBD among South Asians and Chinese people residing in Ontario, Canada's most populous province.
methodsAll incident cases of IBD in children (1994-2015) and adults (1999-2015) were identified from population-based health administrative data. We classified South Asian and Chinese ethnicity using immigration records and surnames. We determined standardized incidence of IBD and adjusted incidence rate ratio (aIRR) in South Asians and Chinese compared to the general population.
resultsAmong 16,230,638 people living in Ontario, standardized incidence of IBD per 100,000 person-years was 24.7 (95% CI 24.4-25.0), compared with 14.6 (95% CI 13.7-15.5) in 982,472 South Asians and with 5.4 (95% CI 4.8-5.9) in 764,397 Chinese. The risk of IBD in South Asians was comparable to the general population after adjusting for immigrant status and confounders (aIRR 1.03, 95% CI 0.96-1.10). South Asians had a lower risk of Crohn's disease (CD) (aIRR 0.66, 95% CI 0.60-0.77), but a higher risk of ulcerative colitis (UC) (aIRR 1.47, 95% CI 1.34-1.61). Chinese people had much lower rates of IBD (aIRR 0.24, 95% CI 0.20-0.28), CD (aIRR 0.21, 95% CI 0.17-0.26), and UC (aIRR 0.28, 95% CI 0.23-0.25).
conclusionCanadians of South Asian ethnicity had a similarly high risk of developing IBD compared to other Canadians, and a higher risk of developing UC, a finding distinct from the Chinese population. Our findings indicate the importance of genetic and environmental risk factors in people of Asian origin who live in the Western world.
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