text: ABBREVIATIONS: ASQ = Asthma Screening Questionnaire; BD = 
  bronchodilator; CAT = COPD Assessment Test; PCA = principal 
  component analysis; PRISm = preserved ratio impaired spirometry; 
  SGRQ = St. George’s Respiratory Questionnaire 
  AFFILIATIONS: From The Ottawa Hospital Research Institute (J. B., E. 
  G., K. L. V., G. G. A., S. M., and S. D. A.), University of Ottawa, 
  Ottawa, ON; the Desautels Faculty of Management (G. A. W.), McGill 
  University, Montreal, QC; the Department of Medicine (C. B.), The 
  University of British Columbia, Vancouver, BC; 
  the Centre de 
  recherche (L.-P. B. and A. C.), Institut de cardiologie et de pneumo- 
  logie de Québec, Université Laval, Quebec, QC; the Cumming School 
  of Medicine (S. K. F.), University of Calgary, Calgary, AB; 
  the 
  Department of Medicine (E. P.), University of Saskatchewan, Regina, 
  SK; the Firestone Institute for Respiratory Health (R. A. M.), McMaster 
  University, Hamilton, ON; the Department of Medicine (C. L.), Uni- 
  versité de Montreal, Montreal, QC; the Department of Medicine and 
  the Li Ka Shing Knowledge Institute (S. G.), St. Michael’s Hospital 
  University of Toronto, Toronto, ON; the Department of Medicine 