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Ciarán Duffy photo of Ciarán Duffy
Senior Scientist, CHEO Research Institute
Pediatric Rheumatologist and Clinical Epidemiologist, CHEO
Chief of Pediatrics, CHEO
Professor and Chairman, Department of Paediatrics, CHEO
Faculty of Medicine, University of Ottawa
National Principal Investigator, LEAP Study
National Principal Investigator, REACCH OUT Study
613-737-7600 Ext. 2636
Research Practice Areas:
Current Research:
Dr. Duffy is the principal investigator for a national study called “LEAP” (Linking Exercise, Activity and Pathophysiology) in Juvenile Idiopathic Arthritis: A Canadian Collaborative Team, involving 12 pediatric centres. In Canada, juvenile idiopathic arthritis (JIA) afflicts approximately 10,000 children and youth, causing pain, disability and long-term joint and bone damage. The research study aims to uncover the factors specific to children with JIA that affect their ability to participate in physical activities and the barriers to such participation. The study also aims to determine how varying levels of physical activity affect the inflammation of arthritis and its effects on the developing bones and muscles, of children with JIA.
Research Team:
  • Michele Gibbon
  • Loren Matheson
Dr. Duffy is Chief of Pediatrics at CHEO and Professor and Chairman within the Department of Pediatrics, Faculty of Medicine at the University of Ottawa. He was previously Professor and Associate Chairman of the Department of Pediatrics at McGill University and Director of the Division of Rheumatology and Associate Pediatrician-in-Chief at The Montreal Children’s Hospital. After moving to Canada from Ireland, he completed a research/clinical fellowship at The Hospital for Sick Children in Toronto, his pediatric residency at The Children’s Hospital of Western Ontario in London, and a Master’s degree in Science (Clinical Epidemiology and Biostatistics) at McMaster University in Hamilton. He has a wide experience in teaching and is a very active researcher.
Sample Publications:
Bernatsky S, Rosenberg A, Oen K, Duffy CM, Ramsey-Goldman R, Labrecque J, St. Pierre Y and Clarke A. Malignancies in Juvenile Idiopathic Arthritis (JIA). J Rheumatol 2011 Apr;38(4):760-3. Epub 2011 Jan 15.

Duffy CM, Wells GA, Russel AS, Haraoui B. Quality of Life Issues in Pediatric Immune-Mediated Inflammatory Diseases. J Rheumatol Suppl. 2011 Nov;88:20-5.

Stinson JN, Feldman BM, Duffy CM, Huber AM, Tucker LB, McGrath PJ, Tse SM, Hetherington R, Spiegel LR, Campillo S, Benseler S, Gill N, White ME, Baker N, Vijenthira A. Jointly managing arthritis: Information needs of children with juvenile idiopathic arthritis (JIA) and their parents. J Child Health Care. 2012 (in press).

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