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Robert Klaassen photo of Robert Klaassen
Clinical Investigator, CHEO Research Institute
Pediatric Hematologist/Oncologist
Division of Hematology/Oncology, CHEO
Associate Professor, Department of Pediatrics,
Faculty of Medicine, University of Ottawa
613-737-7600 Ext. 2210
Research Practice Areas:
  • Hematology
  • Oncology
  • Quality of Life
Current Research:
My research focus is health-related quality of life (HRQoL) in hematologic disorders. I am a 25% owner/inventor of the Kid’s ITP tools and I have developed the Transfusion Quality of Life measure (TranQol). I am PI of a grant from the Canadian Cancer Society to validate the QUALMS-1, an HRQoL tool for patients with myelodysplastic syndrome. Internationally I am a member of the European Hematology Association QoL Scientific Working Group, and contributed to both the pediatric oncology and ITP chapters of their landmark publication of PRO in Hematology guidelines. I am the Chair of the Quality of life committee of the ITP Consortium of North America (ICON).
Research Team:
Dr. Klaassen is a Clinical Investigator at the CHEO Research Institute, and an Associate Professor in the Department of Pediatrics at the University of Ottawa. He is has a certificate in Clinical Epidemiology and specializes in quality of life in benign hematology research.
Sample Publications:
Abel G, Klaassen RJ, Lee S, Young NL, Cannella L, Steensma D, Efficace F. Patient-reported outcomes for the myelodysplastic syndromes: a new MDS-Specific Measure of Quality of Life: Letter to the Editor. Blood. 2014 Jan 16;123(3):451-2

Klaassen RJ, Barrowman N, Merelles-Pulcini M, Vichinsky EP, Sweeters N, Kirby-Allen M, Neufeld EJ, Kwiatkowski JL, Wu J, Vickars L, Blanchette VS, Forgie M, Yamashita R, Wong-Rieger D, Young NL.Validation and reliability of a disease-specific quality of life measure (the TranQol) in adults and children with thalassemia major. Br J Haematol. 2013 Nov 3. doi: 10.1111/bjh.12631. [Epub ahead of print]
Klaassen RJ, Blanchette V, Wakefield C, Curtis C, Validity, Reliability and Responsiveness of a New Measure of Health-Related Quality of  life in Children with Immune Thrombocytopenic Purpura: The Kids' ITP Tools. J Pediatr 2007;150:510-5
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