Prevalence, Associations, & Outcomes
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ADULT OBESITY IN MANITOBA: Prevalence, Associations, & Outcomes October 2011 (3rd Edition) Manitoba Centre for Health Policy Department of Community Health Sciences Faculty of Medicine, University of Manitoba Authors: Randy Fransoo, PhD Patricia Martens, PhD Heather Prior, MSc Dan Chateau, PhD Chelsey McDougall, MSc Jennifer Schultz, MA Kari-Lynne McGowan, MSc Ruth-Ann Soodeen, MSc Angela Bailly, MA This report is produced and published by the Manitoba Centre for Health Policy (MCHP). It is also available in PDF format on our website at: http://mchp-appserv.cpe.umanitoba.ca/deliverablesList.html Information concerning this report or any other report produced by MCHP can be obtained by contacting: Manitoba Centre for Health Policy Dept. of Community Health Sciences Faculty of Medicine, University of Manitoba 4th Floor, Room 408 727 McDermot Avenue Winnipeg, Manitoba, Canada R3E 3P5 Email: [email protected] Phone: (204) 789-3819 Fax: (204) 789-3910 How to cite this report: Fransoo R, Martens P, Prior H, Chateau D, McDougall C, Schultz J, McGowan K, Soodeen R, Bailly A. Adult Obesity in Manitoba: Prevalence, Associations, and Outcomes. Winnipeg, MB: Manitoba Centre for Health Policy, October 2011. Legal Deposit: Manitoba Legislative Library National Library of Canada ISBN 978-1-896489-61-2 ©Manitoba Health This report may be reproduced, in whole or in part, provided the source is cited. 1st printing (October 2011) 2nd printing (July 2012) 3rd printing (November 2012) This work was supported through funding provided by the Department of Health of the Province of Manitoba to the University of Manitoba (HIPC # 2008/2009-01). The results and conclusions are those of the authors and no official endorsement by Manitoba Health was intended or should be inferred. Data used in this study are from the Population Health Research Data Repository housed at the Manitoba Centre for Health Policy, University of Manitoba and were derived from data provided by Manitoba Health, WRHA, and CancerCare Manitoba. About the Manitoba Centre For Health Policy The Manitoba Centre for Health Policy (MCHP) is located within the Department of Community Health Sciences, Faculty of Medicine, University of Manitoba. The mission of MCHP is to provide accurate and timely information to health care decision–makers, analysts and providers, so they can offer services which are effective and efficient in maintaining and improving the health of Manitobans. Our researchers rely upon the unique Population Health Research Data Repository (Repository) to describe and explain patterns of care and profiles of illness, and to explore other factors that influence health, including income, education, employment, and social status. This Repository is unique in terms of its comprehensiveness, degree of integration, and orientation around an anonymized population registry. Members of MCHP consult extensively with government officials, health care administrators, and clinicians to develop a research agenda that is topical and relevant. This strength, along with its rigorous academic standards, enables MCHP to contribute to the health policy process. MCHP undertakes several major research projects, such as this one, every year under contract to Manitoba Health. In addition, our researchers secure external funding by competing for research grants. We are widely published and internationally recognized. Further, our researchers collaborate with a number of highly respected scientists from Canada, the United States, Europe, and Australia. We thank the University of Manitoba, Faculty of Medicine, Health Research Ethics Board for their review of this project. MCHP complies with all legislative acts and regulations governing the protection and use of sensitive information. We implement strict policies and procedures to protect the privacy and security of anonymized data used to produce this report and we keep the provincial Health Information Privacy Committee informed of all work undertaken for Manitoba Health. i Acknowledgments We wish to thank the members of the Advisory Group for their advice and feedback: • Ms. Deborah Malazdrewicz, Dr. Patricia Caetano, Ms. Kristin Anderson, Dr. Paul Fieldhouse, and Mr. Rolf Puchtinger (Manitoba Health) • Ms. Maggie Campbell (Parkland RHA) • Dr. Alain Demers (Public Health Agency of Canada, formerly CancerCare Manitoba) • Dr. Sande Harlos and Dr. Michael Moffatt (Winnipeg Regional Health Authority) • Dr. Gail Marchessault (Dietician and independent researcher) • Dr. Bruce Reeder (University of Saskatchewan) • Dr. Elizabeth Ready, Dr. Gustaf Sevenhuysen, and Dr. Nancy Yu (University of Manitoba) • Dr. Kue Young (University of Toronto) We thank Dr. Robert Kerr who joined MCHP as the project was underway and who was to take a lead on analyses involving the Manitoba participants of the longitudinal NPHS data. However, those analyses did not proceed, as explained in Chapter 1, and Dr. Kerr subsequently left MCHP for Laurentian University. We thank him for his involvement and contributions to several team meetings. We also thank Dr. Lisa Lix (University of Saskatchewan and MCHP affiliate) for helping to resolve questions about definitions of disease prevalence and incidence. We appreciate the input of Dr. Colleen Metge (WRHA and MCHP) and Dr. Colette Raymond (Health Sciences Centre and MCHP) for clarifying issues regarding pharmaceutical use and obesity. We are thankful to CancerCare Manitoba, specifically Dr. Alain Demers and Grace Musto, for identifying incident cancer cases among our study participants, and to Manitoba Health for facilitating this linkage. This analysis could not have been done without key data sources, including the health surveys done by Statistics Canada and the Manitoba Heart Health Survey. Sarah Connor Gorber and Margot Shields from Statistics Canada provided guidance on analyses using CCHS data. We would also like to thank the staff at MCHP who contributed to this report: Angela Bailly, Eileen Boriskewich, Carole Ouelette, Ruth–Ann Soodeen, Eleanor Van Delden, Jessica Jarmasz, Songal Bozat- Emre, Leanne Rajotte, and Stephanie Smith. Dr. Marni Brownell (MCHP) provided valuable feedback on the draft report. We thank Dr. Doug Manuel (University of Ottawa) and Ms. Margot Shields (Statistics Canada) for their fedback as external reviewers of this report. We acknowledge the University of Manitoba Health Research Ethics Board (Bannatyne Campus) for their thoughtful review of this project. The Health Information Privacy Committee of Manitoba Health is kept informed of all MCHP deliverables for Manitoba Health. Strict policies and procedures to protect the privacy and security of data have been followed in producing this report. We also acknowledge the financial support of the Department of Health of the Province of Manitoba. The results and conclusions are those of the authors and no official endorsement by Manitoba Health is intended or should be inferred. This report was prepared at the request of Manitoba Health as part of the contract between the University of Manitoba and Manitoba Health. ii Table of Contents Acknowledgments ................................................................................................................................................... ii Executive Summary ................................................................................................................................................. xi Chapter 1: Introduction and Background ............................................................................................................. 1 Context .........................................................................................................................................................................................................1 Study Goal and Objectives....................................................................................................................................................................1 Report Organization ................................................................................................................................................................................2 Data Sources and Analyses ...................................................................................................................................................................2 Body Mass Index (BMI) Values .............................................................................................................................................................4 Exclusions.....................................................................................................................................................................................................5 Estimates and Confidence Intervals ..................................................................................................................................................6 Geography ...................................................................................................................................................................................................6 Review of Literature .................................................................................................................................................................................7 Chapter 2: Prevalence of Obesity: Changes Over Time and Distribution by RHA ............................................. 13 Chapter Summary ....................................................................................................................................................................................13