Assessment of Preserved Ratio Impaired Spirometry Using Pre- and Post-Bronchodilator Spirometry in a Randomly Sampled Symptomatic Cohort

Affiliations

• ¹ The Ottawa Hospital Research Institute, University of Ottawa, Ottawa, Ontario, Canada.
• ² Division of Pulmonary Medicine, Sir Mortimer B. Davis Jewish General Hospital, Montreal, Quebec, Canada.
• ³ Desautels Faculty of Management, McGill University, Montreal, Quebec, Canada.
• ⁴ Department of Medicine, The University of British Columbia, Vancouver, British Columbia, Canada.
• ⁵ Centre de recherche, Hôpital Laval, Université Laval, Quebec, Quebec, Canada.
• ⁶ Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.
• ⁷ Department de Pulmonologie, Universite de Montreal, Montreal, Quebec, Canada; and.
• ⁸ Firestone Institute for Respiratory Health, McMaster University, Hamilton, Ontario, Canada.