• Mélanie Racine, Dominique Dion, Gilles Dupuis, Denise N Guerriere, Brandon Zagorski, Manon Choinière, Canadian STOP-PAIN Research Group by alphabetical order, Robert Banner, Pamela M Barton, Aline Boulanger, Alexander J Clark, Allan Gordon, Marie-Claude Guertin, Howard M Intrater, Sandra M Lefort, Mary E Lynch, Dwight E Moulin, May Ong-Lam, Philip Peng, Saifee Rashiq, Yoram Shir, Paul Taenzer, and Mark Ware.
• *Department of Psychology, Université du Québec à Montréal †Centre de Recherche ‡‡Clinique de la douleur du, Centre Hospitalier de l'Université de Montréal Departments of ‡Family Medicine and Emergency #Anaesthesiology, Faculty of Medicine, Université de Montréal §Research Centre of the Montreal Heart Institute ¶¶Montreal Heart Institute, Coordinating Center ∥∥∥Pain Centre, McGill University Health Centre, Montréal, QC ∥Department of Health Policy, Management, and Evaluation, University of Toronto ¶Institute for Clinical Evaluative Sciences ∥∥Wasser Pain Management Clinic, Mount Sinai Hospital, Toronto **Department of Anesthesia and Perioperative Medicine, University of Western Ontario †††London Health Sciences Centre, London, ON ††Calgary Chronic Pain Program, Alberta Health Sciences, Calgary §§§Multidisciplinary Chronic Pain Centre, University of Alberta, Edmonton, AB §§Pain Management Unit, Queen Elizabeth II Health Sciences Centre, Halifax, NS ##Health Sciences Centre Pain Clinic, University of Manitoba, Winnipeg, MB ***School of Nursing, Memorial University of Newfoundland, St-John's, NF ‡‡‡St-Paul's Hospital Pain Centre, Vancouver, BC, Canada.
• Clin J Pain. 2014 May 1; 30 (5): 443-52.

ObjectivesThe Canadian STOP-PAIN Project assessed the human and economic burden of chronic pain (CP) in individuals on waitlists of Canadian multidisciplinary pain treatment facilities. This article focuses on sex differences. Objectives were to (1) determine the pain characteristics and related biopsychosocial factors that best differentiated women and men with CP; and (2) examine whether public and private costs associated with CP differed according to sex.Materials And MethodsSample consisted of 441 women and 287 men who were evaluated using self-administered questionnaires and a structured interview protocol. A subsample (233 women and 137 men) recorded all pain-related expenditures in a comprehensive diary over 3 months.ResultsResults revealed that the burden of illness associated with CP was comparable in both sexes for average and worst pain intensity, pain impact on daily living, quality of life, and psychological well-being. The same was true for pain-related costs. The results of a hierarchical logistic regression analysis, in which sex was treated as the dependent variable, showed that factors that differentiated men and women were: work status, certain circumstances surrounding pain onset, present pain intensity, intake of particular types of pain medication, use of certain pain management strategies, pain beliefs, and utilization of particular health care resources.DiscussionThis study suggests that women and men who are referred to multidisciplinary pain treatment facilities do not differ significantly in terms of their pain-related experience. However, the aspects that differ may warrant further clinical attention when assessing and managing pain.

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