Negative impacts of unreported COPD exacerbations on health-related quality of life at one year

Authors’ affiliations: 1. Department of Epidemiology, Biostatistics and Occupational Health, McGill University, Montréal, Québec, Canada. 2. Respiratory Epidemiology and Clinical Research Unit, Montreal Chest Institute, McGill University, Montréal, Québec, Canada. 3. Child and Family Research institute, Children’s and Women’s Health Center, Department of Paediatrics and Department of Health Care and Epidemiology, University of British Columbia, Vancouver, British Columbia, Canada. 4. Beijing Institute of Respiratory Medicine, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China.