Current asthma guidelines suggest a series of criteria to assess if asthma is controlled. However, there is a need to develop a simple and practical method to quantify the degree of such control, both in clinical practice and research.
Centre de recherche de l'Hôpital Laval, Institut de cardiologie et de pneumologie de l'Université Laval, 2725 chemin Sainte-Foy, Sainte-Foy, Québec, Canada. lpboulet@med.ulaval.ca
