The DOI matches its Crossref record; 50 of the 50 references it cites were found in a registry or an index.
Epidemiology of Crohn's Disease and Ulcerative Colitis in a Central Canadian Province: A Population-based Study
Abstract
The aim of this study was to assess the accuracy and utility of administrative health data in identifying persons with inflammatory bowel disease on a population basis and to determine the incidence and prevalence of this disease in the Canadian province of Manitoba. The data from Manitoba Health (the province's single insurer) were used to identify residents with physician and/or hospital contacts for Crohn's disease or ulcerative colitis based on International Classification of Diseases, Ninth Revision, Clinical Modification, codes between 1984 and 1995. Of 5,182 eligible individuals, 4,514 were mailed questionnaires and 2,725 responded. Cases were defined as individuals with five or more separate medical contacts with one of these diagnoses or three or more such contacts if they were resident for less than 2 years. The accuracy of the study case definitions was high when compared with either self-report or chart review. The 1989-1994 age- and sex-adjusted annual incidence was 14.6/100,000 for Crohn's disease and 14.3/100,000 for ulcerative colitis. The prevalence of Crohn's disease in 1994 was 198.5/100,000, and that of ulcerative colitis was 169.7/100,000. In conclusion, the authors have successfully established and validated a population-based database of inflammatory bowel disease based on administrative data. The high incidence rates and dynamic epidemiology of inflammatory bowel disease in Manitoba indicate the presence of important environmental risk factors, which warrants further investigation.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Classification of Inflammatory Bowel Disease
Lennard-Jones, J. E. (1989) · Scandinavian Journal of Gastroenterology · doi:10.3109/00365528909091339 · Cited by 2,011
Crohn's disease in Olmsted County, Minnesota, 1940–1993: Incidence, prevalence, and survival
Loftus, E. V., Silverstein, M. D., Sandborn, W. J., Tremaine, W. J., Harmsen, W. S., & Zinsmeister, A. R. (1998) · Gastroenterology · doi:10.1016/s0016-5085(98)70421-4 · Cited by 623
The epidemiology of inflammatory bowel disease: A large, population-based study in Sweden
Ekbom, A., Helmick, C., Zack, M., & Adami, H.-O. (1991) · Gastroenterology · doi:10.1016/0016-5085(91)90202-v · Cited by 441
Epidemiology of Multiple Sclerosis: A Critical Overview
Sadovnick, A. D., & Ebers, G. C. (1993) · Canadian Journal of Neurological Sciences / Journal Canadien des Sciences Neurologiques · doi:10.1017/s0317167100047351 · Cited by 304
Munkholm, P., Langholz, E., Nielsen, O. H., Kreiner, S., & Binder, V. (1992) · Scandinavian Journal of Gastroenterology · doi:10.3109/00365529209000127 · Cited by 300
Registries and Administrative Data: Organization and Accuracy
ROOS, L. L., MUSTARD, C. A., NICOL, J. P., COMM, B., MCLERRAN, D. F., MALENKA, D. J., YOUNG, T. K., & COHEN, M. M. (1993) · Medical Care · doi:10.1097/00005650-199303000-00002 · Cited by 298
Geographic variation of inflammatory bowel disease within the United States
Sonnenberg, A., McCarty, D. J., & Jacobsen, S. J. (1991) · Gastroenterology · doi:10.1016/0016-5085(91)90594-b · Cited by 288
Incidence and Prevalence of Ulcerative Colitis in Copenhagen County from 1962 to 1987
Langholz, E., Munkholm, P., Nielsen, O. H., Kreiner, S., & Binder, V. (1991) · Scandinavian Journal of Gastroenterology · doi:10.3109/00365529108998621 · Cited by 272
Probert, C. S., Jayanthi, V, Pinder, D., Wicks, A. C., & Mayberry, J. F. (1992) · Gut · doi:10.1136/gut.33.5.687 · Cited by 271
Incidence of inflammatory bowel disease in northern France (1988-1990).
Gower-Rousseau, C., Salomez, J. L., Dupas, J. L., Marti, R., Nuttens, M. C., Votte, A., Lemahieu, M., Lemaire, B., Colombel, J. F., & Cortot, A. (1994) · Gut · doi:10.1136/gut.35.10.1433 · Cited by 246
Cited by
Molodecky, N. A., Soon, I. S., Rabi, D. M., Ghali, W. A., Ferris, M., Chernoff, G., Benchimol, E. I., Panaccione, R., Ghosh, S., Barkema, H. W., et al. (2012) · Gastroenterology · doi:10.1053/j.gastro.2011.10.001 · Cited by 4,833
Silverberg, M. S., Satsangi, J., Ahmad, T., Arnott, I. D., Bernstein, C. N., Brant, S. R., Caprilli, R., Colombel, J.-F., Gasche, C., Geboes, K., et al. (2005) · Canadian Journal of Gastroenterology · doi:10.1155/2005/269076 · Cited by 3,409
Self-citationInflammatory bowel disease: cause and immunobiology
Baumgart, D. C., & Carding, S. R. (2007) · The Lancet · doi:10.1016/s0140-6736(07)60750-8 · Cited by 2,147
The genetics and immunopathogenesis of inflammatory bowel disease
Cho, J. H. (2008) · Nature Reviews Immunology · doi:10.1038/nri2340 · Cited by 940
Kappelman, M. D., Rifas–Shiman, S. L., Kleinman, K., Ollendorf, D., Bousvaros, A., Grand, R. J., & Finkelstein, J. A. (2007) · Clinical Gastroenterology and Hepatology · doi:10.1016/j.cgh.2007.07.012 · Cited by 932
Metadata
- Authors
- Bernstein, C. N., Blanchard, J. F., Rawsthorne, P., & Wajda, A.
- Venue
- American Journal of Epidemiology
- Publisher
- Oxford University Press (OUP)
- Published
- 1999-05-15
- Volume
- 149
- Issue
- 10
- Pages
- 916-924
- ISSN
- 0002-9262 (ISSN-L)
- 1476-6256
- OpenAlex
- W2080314829
- Cited by
- 667
- References
- 50
- FWCI
- 7.09
- Type
- journal article
- Language
- en
- Open access
- closed
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Epidemiology of Crohn's Disease and Ulcerative Colitis in a Central Canadian Province: A Population-based Study. https://app.cochat.ai/papers/10.1093/oxfordjournals.aje.a009735
- The paper
- Bernstein, C. N., Blanchard, J. F., Rawsthorne, P., & Wajda, A. (1999). Epidemiology of Crohn's Disease and Ulcerative Colitis in a Central Canadian Province: A Population-based Study. American Journal of Epidemiology. https://doi.org/10.1093/oxfordjournals.aje.a009735
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
