Jessica Widdifield, Ph.D. - Publications

Affiliations: 
2013 Health Policy, Management and Evaluation University of Toronto, Toronto, ON, Canada 
Area:
Epidemiology, Health Care Management

39 high-probability publications. We are testing a new system for linking publications to authors. You can help! If you notice any inaccuracies, please sign in and mark papers as correct or incorrect matches. If you identify any major omissions or other inaccuracies in the publication list, please let us know.

Year Citation  Score
2021 Barra L, Pope JE, Pequeno P, Gatley JM, Widdifield J. Increased mortality for individuals with Giant Cell Arteritis: a population-based study. Arthritis Care & Research. PMID 33544963 DOI: 10.1002/acr.24573  0.36
2020 Widdifield J, Gatley JM, Pope JE, Barber CEH, Kuriya B, Eder L, Thorne C, Ling V, Paterson JM, Ahluwalia V, Marks C, Bernatsky S. Feminization of the rheumatology workforce: A longitudinal evaluation of patient volumes, practice sizes and physician remuneration. The Journal of Rheumatology. PMID 33262302 DOI: 10.3899/jrheum.201166  0.4
2020 Colaco K, Widdifield J, Luo J, Rosen CF, Alhusayen R, Paterson JM, Campbell W, Tu K, Bernatsky S, Gladman DD, Eder L. Trends in Mortality and Cause-specific Mortality among patients with Psoriasis and Psoriatic Arthritis in Ontario, Canada. Journal of the American Academy of Dermatology. PMID 33096129 DOI: 10.1016/j.jaad.2020.10.031  0.4
2020 Barra L, Pope JE, Pequeno P, Saxena FE, Bell M, Haaland D, Widdifield J. Corrigendum: Incidence and prevalence of giant cell arteritis in Ontario, Canada. Rheumatology (Oxford, England). PMID 32620970 DOI: 10.1093/rheumatology/keaa347  0.36
2020 Bara L, Pope JE, Pequeno P, Saxena FE, Bell M, Haaland D, Widdifield J. Incidence and prevalence of giant cell arteritis in Ontario, Canada. Rheumatology (Oxford, England). PMID 32249899 DOI: 10.1093/rheumatology/keaa095  0.36
2020 Egiziano G, Widdifield J, Rahman A, Vinet E, Moura CS, Curtis JR, Bernatsky S. Antiphospholipid Antibody Testing in a General Population Sample from the USA: An Administrative Database Study. Scientific Reports. 10: 3102. PMID 32080284 DOI: 10.1038/s41598-020-59990-5  0.4
2020 Eder L, Widdifield J, Rosen CF, Alhusayen R, Cheng SY, Young J, Campbell W, Bernatsky S, Gladman DD, Paterson M, Tu K. Identifying and characterizing psoriasis and psoriatic arthritis patients in Ontario administrative data: a population-based study from 1991 to 2015. The Journal of Rheumatology. PMID 32062600 DOI: 10.3899/jrheum.190659  0.4
2020 Eder L, Tu K, Rosen CF, Alhusayen R, Cheng SY, Young J, Campbell W, Bernatsky S, Gladman DD, Paterson JM, Widdifield J. Health Care Utilization for Musculoskeletal Issues During the Pre-diagnosis Period in Psoriatic Arthritis - A Population-Based Study. Arthritis Care & Research. PMID 31961491 DOI: 10.1002/acr.24146  0.4
2019 Widdifield J, Bernatsky S, Pope JE, Ahluwalia V, Barber CEH, Eder L, Kuriya B, Ling V, Paterson JM, Thorne C. Encounters with Rheumatologists in a Publicly-Funded Canadian Healthcare System: A Population-Based Study. The Journal of Rheumatology. PMID 31203224 DOI: 10.3899/jrheum.190034  0.4
2019 Ahluwalia V, Brooks S, Sweezie R, Bell M, Kendzerska T, Widdifield J, Bombardier C. The Effect of Triage Assessments on Identifying Inflammatory Arthritis and Reducing Rheumatology Wait Times in Ontario. The Journal of Rheumatology. PMID 31154411 DOI: 10.3899/jrheum.180734  0.4
2019 Wong J, Tu K, Bernatsky S, Jaakkimainen L, Thorne JC, Ahluwalia V, Paterson JM, Widdifield J. Quality and continuity of information between primary care physicians and rheumatologists. Bmc Rheumatology. 3: 1. PMID 31149655 DOI: 10.1186/s41927-019-0067-6  0.4
2018 Widdifield J, Abrahamowicz M, Paterson JM, Huang A, Thorne JC, Pope JE, Kuriya B, Beauchamp ME, Bernatsky S. Associations Between Methotrexate Use and the Risk of Cardiovascular Events in Patients with Elderly-onset Rheumatoid Arthritis. The Journal of Rheumatology. PMID 30504508 DOI: 10.3899/jrheum.180427  0.4
2018 Eder L, Widdifield J, Rosen CF, Cook R, Lee KA, Alhusayen R, Paterson JM, Cheng SY, Jabbari S, Campbell W, Bernatsky S, Gladman DD, Tu K. Trends in the prevalence and incidence of psoriasis and psoriatic arthritis in Ontario, Canada: A population-based study. Arthritis Care & Research. PMID 30171803 DOI: 10.1002/acr.23743  0.4
2018 Widdifield J, Paterson JM, Huang A, Bernatsky S. Causes of death in rheumatoid arthritis: How do they compare to the general population? Arthritis Care & Research. PMID 29512334 DOI: 10.1002/acr.23548  0.4
2016 Widdifield J, Ivers NM, Bernatsky S, Jaakkimainen RL, Bombardier C, Thorne JC, Ahluwalia V, Paterson JM, Young J, Wing L, Tu K. Primary Care Screening and Management of Comorbidity in Rheumatoid Arthritis in Ontario, Canada. Arthritis Care & Research. PMID 27998044 DOI: 10.1002/acr.23178  0.4
2016 Jaakkimainen RL, Bronskill SE, Tierney MC, Herrmann N, Green D, Young J, Ivers N, Butt D, Widdifield J, Tu K. Identification of Physician-Diagnosed Alzheimer's Disease and Related Dementias in Population-Based Administrative Data: A Validation Study Using Family Physicians' Electronic Medical Records. Journal of Alzheimer's Disease : Jad. PMID 27567819 DOI: 10.3233/JAD-160105  0.36
2016 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. Wait times to rheumatology care for patients with rheumatic diseases: a data linkage study of primary care electronic medical records and administrative data. Cmaj Open. 4: E205-12. PMID 27398365 DOI: 10.9778/cmajo.20150116  0.4
2016 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. Patterns of care among first-time referrals to rheumatologists: Characteristics and timeliness of consultations and treatment in Ontario, Canada. Arthritis Care & Research. PMID 27110847 DOI: 10.1002/acr.22910  0.4
2016 Widdifield J, Moura CS, Wang Y, Abrahamowicz M, Paterson JM, Huang A, Beauchamp ME, Boire G, Fortin PR, Bessette L, Bombardier C, Hanly JG, Feldman D, Bernatsky S. The Longterm Effect of Early Intensive Treatment of Seniors with Rheumatoid Arthritis: A Comparison of 2 Population-based Cohort Studies on Time to Joint Replacement Surgery. The Journal of Rheumatology. PMID 26879353 DOI: 10.3899/jrheum.151156  0.36
2016 Barber CE, Marshall DA, Mosher DP, Akhavan P, Tucker L, Houghton K, Batthish M, Levy DM, Schmeling H, Ellsworth J, Tibollo H, Grant S, Khodyakov D, Lacaille D. Development of System-level Performance Measures for Evaluation of Models of Care for Inflammatory Arthritis in Canada. The Journal of Rheumatology. PMID 26773106 DOI: 10.3899/jrheum.150839  0.36
2016 Breiner A, Widdifield J, Katzberg HD, Barnett C, Bril V, Tu K. Epidemiology of myasthenia gravis in Ontario, Canada. Neuromuscular Disorders : Nmd. 26: 41-6. PMID 26573434 DOI: 10.1016/j.nmd.2015.10.009  0.36
2015 Widdifield J, Bernatsky S, Bombardier C, Paterson M. Rheumatoid Arthritis Surveillance in Ontario: Monitoring the Burden, Quality of Care and Patient Outcomes through Linkage of Administrative Health Data. Healthcare Quarterly (Toronto, Ont.). 18: 7-10. PMID 26718246  0.4
2015 Tu K, Widdifield J, Young J, Oud W, Ivers NM, Butt DA, Leaver CA, Jaakkimainen L. Are family physicians comprehensively using electronic medical records such that the data can be used for secondary purposes? A Canadian perspective. Bmc Medical Informatics and Decision Making. 15: 67. PMID 26268511 DOI: 10.1186/s12911-015-0195-x  0.36
2015 Moura CS, Abrahamowicz M, Beauchamp ME, Lacaille D, Wang Y, Boire G, Fortin PR, Bessette L, Bombardier C, Widdifield J, Hanly JG, Feldman D, Maksymowych W, Peschken C, Barnabe C, et al. Early medication use in new-onset rheumatoid arthritis may delay joint replacement: results of a large population-based study. Arthritis Research & Therapy. 17: 197. PMID 26235697 DOI: 10.1186/s13075-015-0713-3  0.4
2015 Widdifield J, Bernatsky S. Connective tissue diseases: The burden of serious infections in SLE. Nature Reviews. Rheumatology. 11: 326-7. PMID 25900209 DOI: 10.1038/nrrheum.2015.55  0.36
2015 Widdifield J, Bernatsky S, Paterson JM, Tomlinson G, Tu K, Kuriya B, Thorne JC, Pope JE, Hollands S, Bombardier C. Trends in excess mortality among patients with rheumatoid arthritis in ontario, Canada. Arthritis Care & Research. PMID 25623141 DOI: 10.1002/acr.22553  0.36
2015 Widdifield J, Ivers NM, Young J, Green D, Jaakkimainen L, Butt DA, O'Connor P, Hollands S, Tu K. Development and validation of an administrative data algorithm to estimate the disease burden and epidemiology of multiple sclerosis in Ontario, Canada. Multiple Sclerosis (Houndmills, Basingstoke, England). 21: 1045-54. PMID 25392338 DOI: 10.1177/1352458514556303  0.36
2015 Moura CS, Abrahamowicz M, Beauchamp ME, Lacaille D, Wang Y, Boire G, Fortin PR, Bessette L, Bombardier C, Widdifield J, Hanly JG, Feldman D, Maksymowych W, Peschken C, Barnabe C, et al. Early medication use in new-onset rheumatoid arthritis may delay joint replacement: Results of a large population-based study Arthritis Research and Therapy. 17. DOI: 10.1186/s13075-015-0713-3  0.36
2014 Widdifield J, Bombardier C, Bernatsky S, Paterson JM, Green D, Young J, Ivers N, Butt DA, Jaakkimainen RL, Thorne JC, Tu K. An administrative data validation study of the accuracy of algorithms for identifying rheumatoid arthritis: the influence of the reference standard on algorithm performance. Bmc Musculoskeletal Disorders. 15: 216. PMID 24956925 DOI: 10.1186/1471-2474-15-216  0.36
2014 Widdifield J, Paterson JM, Bernatsky S, Tu K, Tomlinson G, Kuriya B, Thorne JC, Bombardier C. The epidemiology of rheumatoid arthritis in Ontario, Canada. Arthritis & Rheumatology (Hoboken, N.J.). 66: 786-93. PMID 24757131 DOI: 10.1002/art.38306  0.36
2014 Widdifield J, Paterson JM, Bernatsky S, Tu K, Thorne JC, Ivers N, Butt D, Jaakkimainen RL, Gunraj N, Ahluwalia V, Bombardier C. Access to rheumatologists among patients with newly diagnosed rheumatoid arthritis in a Canadian universal public healthcare system. Bmj Open. 4: e003888. PMID 24486677 DOI: 10.1136/bmjopen-2013-003888  0.36
2013 Widdifield J, Paterson JM, Bernatsky S, Tu K, Thorne JC, Ahluwalia V, Ivers N, Butt D, Jaakkimainen RL, Tomlinson G, Bombardier C. The rising burden of rheumatoid arthritis surpasses rheumatology supply in Ontario. Canadian Journal of Public Health = Revue Canadienne De Santé Publique. 104: e450-5. PMID 24495819 DOI: 10.17269/cjph.104.4115  0.36
2013 Widdifield J, Bernatsky S, Paterson JM, Tu K, Ng R, Thorne JC, Pope JE, Bombardier C. Accuracy of Canadian health administrative databases in identifying patients with rheumatoid arthritis: a validation study using the medical records of rheumatologists. Arthritis Care & Research. 65: 1582-91. PMID 23592598 DOI: 10.1002/acr.22031  0.36
2013 Widdifield J, Labrecque J, Lix L, Paterson JM, Bernatsky S, Tu K, Ivers N, Bombardier C. Systematic review and critical appraisal of validation studies to identify rheumatic diseases in health administrative databases. Arthritis Care & Research. 65: 1490-503. PMID 23436765 DOI: 10.1002/acr.21993  0.36
2013 Widdifield J, Bernatsky S, Paterson JM, Gunraj N, Thorne JC, Pope J, Cividino A, Bombardier C. Serious infections in a population-based cohort of 86,039 seniors with rheumatoid arthritis. Arthritis Care & Research. 65: 353-61. PMID 22833532 DOI: 10.1002/acr.21812  0.36
2011 Vinet E, Kuriya B, Widdifield J, Bernatsky S. Rheumatoid arthritis disease severity indices in administrative databases: a systematic review. The Journal of Rheumatology. 38: 2318-25. PMID 21921094 DOI: 10.3899/jrheum.110587  0.36
2011 Pease C, Pope JE, Truong D, Bombardier C, Widdifield J, Thorne JC, Paul Haraoui B, Psaradellis E, Sampalis J, Bonner A. Comparison of anti-TNF treatment initiation in rheumatoid arthritis databases demonstrates wide country variability in patient parameters at initiation of anti-TNF therapy. Seminars in Arthritis and Rheumatism. 41: 81-9. PMID 21168187 DOI: 10.1016/j.semarthrit.2010.09.004  0.36
2011 Widdifield J, Bernatsky S, Paterson JM, Thorne JC, Cividino A, Pope J, Gunraj N, Bombardier C. Quality care in seniors with new-onset rheumatoid arthritis: a Canadian perspective. Arthritis Care & Research. 63: 53-7. PMID 20806274 DOI: 10.1002/acr.20304  0.36
2010 Pease C, Pope JE, Thorne C, Haraoui BP, Truong D, Bombardier C, Widdifield J, Psaradellis E, Sampalis JS, Bonner A. Canadian variation by province in rheumatoid arthritis initiating anti-tumor necrosis factor therapy: results from the optimization of adalimumab trial. The Journal of Rheumatology. 37: 2469-74. PMID 20843910 DOI: 10.3899/jrheum.091447  0.36
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