Jessica Widdifield
Jessica Widdifield
Sunnybrook Research Institute
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Cited by
Cited by
Serious infections in a population‐based cohort of 86,039 seniors with rheumatoid arthritis
J Widdifield, S Bernatsky, JM Paterson, N Gunraj, JC Thorne, J Pope, ...
Arthritis care & research 65 (3), 353-361, 2013
Identification of physician-diagnosed Alzheimer’s disease and related dementias in population-based administrative data: a validation study using family physicians’ electronic …
RL Jaakkimainen, SE Bronskill, MC Tierney, N Herrmann, D Green, ...
Journal of Alzheimer's Disease 54 (1), 337-349, 2016
Epidemiology of myasthenia gravis in Ontario, Canada
A Breiner, J Widdifield, HD Katzberg, C Barnett, V Bril, K Tu
Neuromuscular Disorders 26 (1), 41-46, 2016
The epidemiology of rheumatoid arthritis in Ontario, Canada
J Widdifield, JM Paterson, S Bernatsky, K Tu, G Tomlinson, B Kuriya, ...
Arthritis & rheumatology 66 (4), 786-793, 2014
Accuracy of Canadian health administrative databases in identifying patients with rheumatoid arthritis: a validation study using the medical records of rheumatologists
J Widdifield, S Bernatsky, JM Paterson, K Tu, R Ng, JC Thorne, JE Pope, ...
Arthritis care & research 65 (10), 1582-1591, 2013
Trends in excess mortality among patients with rheumatoid arthritis in Ontario, Canada
J Widdifield, S Bernatsky, JM Paterson, G Tomlinson, K Tu, B Kuriya, ...
Arthritis care & research 67 (8), 1047-1053, 2015
An administrative data validation study of the accuracy of algorithms for identifying rheumatoid arthritis: the influence of the reference standard on algorithm performance
J Widdifield, C Bombardier, S Bernatsky, JM Paterson, D Green, J Young, ...
BMC musculoskeletal disorders 15 (1), 1-9, 2014
Early medication use in new-onset rheumatoid arthritis may delay joint replacement: results of a large population-based study
CS Moura, M Abrahamowicz, ME Beauchamp, D Lacaille, Y Wang, ...
Arthritis research & therapy 17 (1), 1-9, 2015
Development and validation of an administrative data algorithm to estimate the disease burden and epidemiology of multiple sclerosis in Ontario, Canada
J Widdifield, NM Ivers, J Young, D Green, L Jaakkimainen, DA Butt, ...
Multiple Sclerosis Journal 21 (8), 1045-1054, 2015
Quality care in seniors with new‐onset rheumatoid arthritis: A Canadian perspective
J Widdifield, S Bernatsky, JM Paterson, JC Thorne, A Cividino, J Pope, ...
Arthritis care & research 63 (1), 53-57, 2011
Development of system-level performance measures for evaluation of models of care for inflammatory arthritis in Canada
CEH Barber, DA Marshall, DP Mosher, P Akhavan, L Tucker, K Houghton, ...
The Journal of rheumatology 43 (3), 530-540, 2016
The rising burden of rheumatoid arthritis surpasses rheumatology supply in Ontario
J Widdifield, JM Paterson, S Bernatsky, K Tu, JC Thorne, V Ahluwalia, ...
Canadian Journal of Public Health 104 (7), e450-e455, 2013
Causes of death in rheumatoid arthritis: how do they compare to the general population?
J Widdifield, JM Paterson, A Huang, S Bernatsky
Arthritis care & research 70 (12), 1748-1755, 2018
Are family physicians comprehensively using electronic medical records such that the data can be used for secondary purposes? A Canadian perspective
K Tu, J Widdifield, J Young, W Oud, NM Ivers, DA Butt, CA Leaver, ...
BMC medical informatics and decision making 15 (1), 1-12, 2015
Systematic review and critical appraisal of validation studies to identify rheumatic diseases in health administrative databases
J Widdifield, J Labrecque, L Lix, JM Paterson, S Bernatsky, K Tu, N Ivers, ...
Arthritis care & research 65 (9), 1490-1503, 2013
Trends in the prevalence and incidence of psoriasis and psoriatic arthritis in Ontario, Canada: a population‐based study
L Eder, J Widdifield, CF Rosen, R Cook, KA Lee, R Alhusayen, ...
Arthritis Care & Research 71 (8), 1084-1091, 2019
Comparison of anti-TNF treatment initiation in rheumatoid arthritis databases demonstrates wide country variability in patient parameters at initiation of anti-TNF therapy
C Pease, JE Pope, D Truong, C Bombardier, J Widdifield, JC Thorne, ...
Seminars in arthritis and rheumatism 41 (1), 81-89, 2011
Consensus statements for the use of administrative health data in rheumatic disease research and surveillance
S Bernatsky, L Lix, S O’DONNELL, D Lacaille, C Network
The Journal of rheumatology 40 (1), 66-73, 2013
Wait times to rheumatology care for patients with rheumatic diseases: a data linkage study of primary care electronic medical records and administrative data
J Widdifield, S Bernatsky, JC Thorne, C Bombardier, RL Jaakkimainen, ...
Canadian Medical Association Open Access Journal 4 (2), E205-E212, 2016
Predictors of treatment failure for hip and knee prosthetic joint infections in the setting of 1-and 2-stage exchange arthroplasty: a multicenter retrospective cohort
CE Kandel, R Jenkinson, N Daneman, D Backstein, BE Hansen, ...
Open Forum Infectious Diseases 6 (11), ofz452, 2019
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