The DOI matches its Crossref record; 22 of the 22 references it cites were found in a registry or an index.
Blood transfusion, smoking, and obesity as risk factors for the development of rheumatoid arthritis. Results from a primary care‐based incident case‐control study in Norfolk, England
Abstract
Objective. To examine a range of demographic, social, and clinical risk factors for the development of rheumatoid arthritis (RA). Results. The controls were of higher socioeconomic status than the cases. This was probably due to response bias. Having a body mass index ⩾30 was associated with an adjusted odds ratio (OR) of 3.74 for developing RA (95% confidence interval [95% CI] 1.14−12.27). RA was also associated with a history of blood transfusion (OR 4.83, 95% CI 1.29−18.07). Even after correcting for social class, a history of having ever smoked was associated with a higher risk of developing RA (OR 1.66, 95% CI 0.95−3.06). There was no difference between cases and controls in previous exposure to childhood infections, certain surgical procedures, or reproductive history variables. Methods. Population‐based case‐control study in Norfolk, England, involving adult patients, ages 18–70, with an inflammatory polyarthritis of <12 months' duration who were recruited from the Norfolk Arthritis Register. Controls, matched for sex and date of birth, were selected from the primary care register of the Norwich Health Authority. Both cases and controls completed identical self‐administered questionnaires. Matched analysis of the 165 case‐control sets was conducted for the whole group and for the subset in which the cases satisfied the 1987 American College of Rheumatology criteria for RA. Conclusion. RA has a number of potential environmental triggers, including smoking, obesity, and blood transfusion.
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
Arnett, F. C., Edworthy, S. M., Bloch, D. A., Mcshane, D. J., Fries, J. F., Cooper, N. S., Healey, L. A., Kaplan, S. R., Liang, M. H., Luthra, H. S., et al. (1988) · Arthritis & Rheumatism · doi:10.1002/art.1780310302 · Cited by 19,752
Rheumatoid Arthritis: Pathophysiology and Implications for Therapy
Epstein, F. H., & Harris, E. D. (1990) · New England Journal of Medicine · doi:10.1056/nejm199005033221805 · Cited by 1,551
TWIN CONCORDANCE RATES FOR RHEUMATOID ARTHRITIS: RESULTS FROM A NATIONWIDE STUDY
SILMAN, A. J., MACGREGOR, A. J., THOMSON, W., HOLLIGAN, S., CARTHY, D., FARHAN, A., & OLLIER, W. E. R. (1993) · Rheumatology · doi:10.1093/rheumatology/32.10.903 · Cited by 616
Self-citationSYMMONS, D. P. M., BARRETT, E. M., BANKHEAD, C. R., SCOTT, D. G. L., & SILMAN, A. J. (1994) · Rheumatology · doi:10.1093/rheumatology/33.8.735 · Cited by 464
Self-citationSilman, A. J., Newman, J., & Macgregor, A. J. (1996) · Arthritis & Rheumatism · doi:10.1002/art.1780390504 · Cited by 394
Self-citationSmoking and the risk of rheumatoid arthritis.
Silman, A. J. (1993) · PubMed · Cited by 306
Self-citationSmoking and risk of rheumatoid arthritis.
Heliövaara, M., Aho, K., Aromaa, A., Knekt, P., & Reunanen, A. (1993) · PubMed · Cited by 286
Smoking, obesity, alcohol consumption, and the risk of rheumatoid arthritis.
Voigt, L. F., Koepsell, T. D., Nelson, J. L., Dugowson, C. E., & Daling, J. R. (1994) · PubMed · Cited by 257
Obesity as a Risk Factor for Osteoarthritis of the Hand and Wrist: A Prospective Study
Carman, W. J., Sowers, M., Hawthorne, V. M., & Weissfeld, L. A. (1994) · American Journal of Epidemiology · doi:10.1093/oxfordjournals.aje.a116974 · Cited by 257
Oral contraceptives, cigarette smoking and other factors in relation to arthritis
Vessey, M. P., Villard-Mackintosh, L., & Yeates, D. (1987) · Contraception · doi:10.1016/0010-7824(87)90082-5 · Cited by 251
Cited by
The Pathogenesis of Rheumatoid Arthritis
McInnes, I. B., & Schett, G. (2011) · New England Journal of Medicine · doi:10.1056/nejmra1004965 · Cited by 5,514
Klareskog, L., Stolt, P., Lundberg, K., Källberg, H., Bengtsson, C., Grunewald, J., Rönnelid, J., Erlandsson Harris, H., Ulfgren, A., Rantapää‐Dahlqvist, S., et al. (2006) · Arthritis & Rheumatism · doi:10.1002/art.21575 · Cited by 1,515
Is the incidence of rheumatoid arthritis rising?: Results from Olmsted County, Minnesota, 1955–2007
Myasoedova, E., Crowson, C. S., Kremers, H. M., Therneau, T. M., & Gabriel, S. E. (2010) · Arthritis & Rheumatism · doi:10.1002/art.27425 · Cited by 802
Klareskog, L., Catrina, A. I., & Paget, S. (2009) · The Lancet · doi:10.1016/s0140-6736(09)60008-8 · Cited by 787
Obesity in autoimmune diseases: Not a passive bystander
Versini, M., Jeandel, P.-Y., Rosenthal, E., & Shoenfeld, Y. (2014) · Autoimmunity Reviews · doi:10.1016/j.autrev.2014.07.001 · Cited by 694
Metadata
- Authors
- Symmons, D. P. M., Bankhead, C. R., Harrison, B. J., Brennan, P., Silman, A. J., Barrett, E. M., & Scott, D. G. I.
- Venue
- Arthritis & Rheumatism
- Publisher
- Wiley
- Published
- 1997-11
- Volume
- 40
- Issue
- 11
- Pages
- 1955-1961
- ISSN
- 0004-3591 (ISSN-L)
- 1529-0131
- OpenAlex
- W1963603430
- Cited by
- 405
- References
- 22
- FWCI
- 4.95
- 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: Blood transfusion, smoking, and obesity as risk factors for the development of rheumatoid arthritis. Results from a primary care‐based incident case‐control study in Norfolk, England. https://app.cochat.ai/papers/10.1002/art.1780401106
- The paper
- Symmons, D. P. M., Bankhead, C. R., Harrison, B. J., Brennan, P., Silman, A. J., Barrett, E. M., & Scott, D. G. I. (1997). Blood transfusion, smoking, and obesity as risk factors for the development of rheumatoid arthritis. Results from a primary care‐based incident case‐control study in Norfolk, England. Arthritis & Rheumatism. https://doi.org/10.1002/art.1780401106
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.