Publication Results (23)

• The rising burden of rheumatoid arthritis surpasses rheumatology supply in Ontario

  Widdifield J, Paterson JM, Bernatsky S, Tu K, Thorne JC, Ahluwalia V, Ivers N, Butt D, Jaakkimainen RL, Tomlinson G, Bombardier C. Can J Public Health. 2013; 104(7):450-5. Epub 2013 Oct 31.

• The effects of continuity of rheumatology care on emergency department utilization and hospitalizations for individuals with early rheumatoid arthritis: a population-based study

  Davtyan Abel, Lee JJY, Eder L, Hawker GA, Luo J, Barber CEH, Thorne JC, Widdifield J. J Rheumatol. 2023; Feb 1 [Epub ahead of print]. DOI: https://doi.org/10.3899/jrheum.220996

• Evaluation of rheumatology workforce supply changes in Ontario, Canada, from 2000 to 2030

  Widdifield J, Bernatsky S, Pope JE, Kuriya B, Barber CEH, Eder L, Ahluwalia V, Ling V, Gozdyra P, Hofstetter C, Lyddiatt A, Paterson JM, Thorne C. Healthc Policy. 2021; 16(3):119-35. Epub 2021 Feb 1. DOI: https://doi.org/10.12927/hcpol.2021.26428

• A population-based study evaluating retention in rheumatology care among patients with rheumatoid arthritis

  Barber CEH, Lacaille D, Croxford R, Barnabe C, Marshall DA, Abrahamowicz M, Xie H, Avina-Zubieta JA, Esdaile JM, Hazlewood G, Faris P, Katz S, MacMullan P, Mosher D, Widdifield J. ACR Open Rheumatol. 2022; 4(7):613-22. Epub 2022 May 5. DOI: https://doi.org/10.1002/acr2.11442

• Wait times to rheumatology care for patients with rheumatic diseases: a data linkage study of primary care EMRs and administrative data

  Widdifield J, Bernatsky S, Thorne JC, Bombardier C, Jaakkimainen RL, Wing L, Paterson JM, Ivers N, Butt D, Lyddiatt A, Hofstetter C, Ahluwalia V, Tu K. CMAJ Open. 2016; 4(2):E205-12.

• System-level performance measures of access to rheumatology care: a population-based retrospective study of trends over time and the impact of regional rheumatologist supply in Ontario, Canada, 2002-2019

  Barber CEH, Lacaille D, Croxford R, Barnabe C, Marshall DA, Abrahamowicz M, Xie H, Avina-Zubieta JA, Esdaile JM, Hazlewood G, Faris P, Katz S, MacMullan P, Mosher D, Widdifield J. BMC Rheumatol. 2022; 6(1):86. Epub 2022 Dec 27. DOI: https://doi.org/10.1186/s41927-022-00315-6

• Investigating associations between access to rheumatology care, treatment, continuous care and healthcare utilization and costs among older individuals with RA

  Barber CE, Lacaille D, Croxford R, Barnabe C, Marshall DA, Abrahamowicz M, Xie H, Avina-Zubieta JA, Esdaile JM, Hazlewood GS, Faris P, Katz S, MacMullan P, Mosher D, Widdifield J. J Rheumatol. 2023; Jan 15 [Epub ahead of print]. DOI: https://doi.org/10.3899/jrheum.220729

• Feminization of the rheumatology workforce: a longitudinal evaluation of patient volumes, practice sizes and physician remuneration

  Widdifield J, Gatley JM, Pope JE, Barber CEH, Kuriya B, Eder L, Thorne C, Ling V, Paterson JM, Ahluwalia V, Marks C, Bernatsky S. J Rheumatol. 2021; 48(7):1090-7. Epub 2020 Dec 1. DOI: https://doi.org/10.3899/jrheum.201166

• Quality care in seniors with new-onset rheumatoid arthritis: a Canadian perspective

  Widdifield J, Bernatsky S, Paterson JM, Thorne JC, Cividino A, Pope J, Gunraj N, Bombardier C. Arthritis Care Res. 2011; 63(1):53-7. Epub 2010 Dec 28.

• Visits to rheumatologists for arthritis: the role of access to primary care physicians, geographic availability of rheumatologists, and socioeconomic status

  Badley EM, Canizares M, Gunz AC, Davis AM. Arthritis Care Res. 2015; 67(2):230-9. Epub 2014 Jul 21.

• Rheumatoid arthritis surveillance in Ontario: monitoring the burden, quality of care and patient outcomes through linkage of administrative health data

  Widdifield J, Bernatsky S, Bombardier C, Paterson M. Healthc Q. 2015; 18(3):7-10.

• Patterns of care among patients referred to rheumatologists in Ontario, Canada

  Widdifield J, Tu K, Thorne JC, Bombardier C, Paterson JM, Jaakkimainen RL, Wing L, Butt DA, Ivers N, Hofstetter C, Lyddiatt A, Ahluwalia V, Bernatsky S. Arthritis Care Res (Hoboken). 2017; 69(1):104-14. Epub 2016 Nov 16.

• Access to rheumatologists among patients with newly diagnosed rheumatoid arthritis in a Canadian universal public health care system

  Widdifield J, Paterson JM, Bernatsky S, Tu K, Thorne JC, Ivers N, Butt D, Jaakkimainen RL, Gunraj N, Ahluwalia V, Bombardier C. BMJ Open. 2014; 4:e003888.

• Encounters with rheumatologists in a publicly funded Canadian healthcare system: a population-based study

  Widdifield J, Bernatsky S, Pope JE, Ahluwalia V, Barber CEH, Eder L, Kuriya B, Ling V, Paterson JM, Thorne JC. J Rheumatol. 2020; 47(3):468-76. Epub 2019 Jun 1. DOI: 10.3899/jrheum.190034.

• Accuracy of Canadian health administrative databases in identifying patients with rheumatoid arthritis: a validation study using the medical records of rheumatologists

  Widdifield J, Bernatsky S, Paterson JM, Tu K, Ng R, Thorne JC, Pope JE, Bombardier C. Arthritis Care Res. 2013; 65(10):1582-91. Epub 2013 Sep 24.

• Changes in service delivery and access to rheumatologists before and during the COVID-19 pandemic in a Canadian universal healthcare setting

  Kwok TSH, Kuriya B, King LK, Eder L, Thorne C, Li Z, Stukel T, Fu L, Kopp A, Widdifield J. J Rheumatol. 2022; Oct 1 [Epub ahead of print]. DOI: https://doi.org/10.3899/jrheum.220658

• Incidence and prevalence of giant cell arteritis in Ontario, Canada

  Bara L, Pope JE, Pequeno P, Saxena FE, Bell M, Haaland D, Widdifield J. Rheumatology (Oxford). 2020; 27(8):2927-48. Epub 2020 Apr 6. DOI: https://doi.org/10.1093/rheumatology/keaa095

• Incidence of chronic immune-mediated inflammatory diseases after diagnosis with Kawasaki disease: a population-based cohort study

  Fung SG, Webster R, Kuenzig ME, Knight B, Batthish M, Robinson C, Chanchlani R, Benchimol EI, Jimenez-Rivera C. Rheumatology (Oxford). 2022; 61(5):2095-103. Epub 2021 Sep 8. DOI: https://doi.org/10.1093/rheumatology/keab680

• An administrative data validation study of the accuracy of algorithms for identifying rheumatoid arthritis: the influence of the reference standard on algorithm performance

  Widdifield J, Bombardier C, Bernatsky S, Paterson JM, Green D, Young J, Ivers N, Butt DA, Jaakkimainen RL, Thorne JC, Tu K. BMC Musculoskelet Disord. 2014; 15:216.

• Identifying and characterizing psoriasis and psoriatic arthritis patients in Ontario administrative data: a population-based study from 1991 to 2015

  Eder L, Widdifield J, Rosen CF, Alhusayen R, Cheng SY, Young J, Campbell W, Bernatsky S, Gladman DD, Paterson JM, Tu K. J Rheumatol. 2020; 47(11):1644-51. Epub 2020 Feb 15. DOI: https://doi.org/10.3899/jrheum.190659

• December 2020

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• Understanding sex-related differences in healthcare utilisation among patients with inflammatory arthritis: a population-based study

  Tarannum S, Widdifield J, Wu CF, Johnson SR, Rochon P, Eder L. Ann Rheum Dis. 2022; Sep 16 [Epub ahead of print]. DOI: https://doi.org/10.1136/ard-2022-222779