Oligoarticular vs Polyarticular Psoriatic Arthritis: A Longitudinal Study Showing Similar Characteristics

Copyright © 2021 by the Journal of Rheumatology This is an Open Access article, which permits use, distribution, and reproduction, without modification, provided the original article is correctly cited and is not used for commercial purposes.

Author Information

Dafna D. Gladman1 ⇑,
Justine Y. Ye2,
Vinod Chandran3,
Ker-Ai Lee4 and
Richard J. Cook4

¹D.D. Gladman, MD, FRCPC, Schroeder Arthritis Institute, Krembil Research Institute, University Health Network, Institute of Medical Science, University of Toronto, and Psoriatic Arthritis Program, University Health Network, Centre for Prognosis Studies in The Rheumatic Diseases, Toronto Western Hospital, Toronto;
²J.Y. Ye, MS, Psoriatic Arthritis Program, University Health Network, Centre for Prognosis Studies in The Rheumatic Diseases, Toronto Western Hospital, Toronto;
³V. Chandran, MBBS, MD, DM, PhD, Schroeder Arthritis Institute, Krembil Research Institute, University Health Network, Institute of Medical Science, University of Toronto, Psoriatic Arthritis Program, University Health Network, Centre for Prognosis Studies in The Rheumatic Diseases, Toronto Western Hospital, and Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto;
⁴K.A. Lee, MMath, R.J. Cook, PhD, Department of Statistics and Actuarial Science, University of Waterloo, Waterloo, Ontario, Canada.

Address correspondence to Dr. D.D. Gladman, Director, Psoriatic Arthritis Program, Centre for Prognosis Studies in the Rheumatic Diseases, University Health Network, Toronto Western Hospital, Schroeder Arthritis Institute, 399 Bathurst St., Toronto, ON M5T 2S8, Canada. Email: dafna.gladman{at}utoronto.ca.