Donaldson, Gavin C2; Müllerova, Hanna3; Locantore, Nicholas3; Hurst, John R3; Calverley, Peter M A3; Vestbo, Jorgen4; Anzueto, Antonio3; Wedzicha, Jadwiga A3
1 Lung Medicine, Department of Clinical Research, Det Sundhedsvidenskabelige Fakultet, SDU2 Centre for Respiratory Medicine, UCL Medical School, Royal Free Campus, Rowland Hill Street Hampstead, London NW3 2PF, UK. firstname.lastname@example.org unknown4 Lung Medicine, Department of Clinical Research, Det Sundhedsvidenskabelige Fakultet, SDU
Patients with chronic obstructive pulmonary disease (COPD) can be categorized as having frequent (FE) or infrequent (IE) exacerbations depending on whether they respectively experience two or more, or one or zero exacerbations per year. Although most patients do not change category from year to year, some will, and the factors associated with this behaviour have not been examined.
Respiratory Research, 2013, Vol 14, Issue 79
Adult; Age Distribution; Aged; Disease Progression; Exercise Test; Exercise Tolerance; Female; Great Britain; Humans; Male; Middle Aged; Platelet Count; Prevalence; Pulmonary Disease, Chronic Obstructive; Risk Factors; Sex Distribution; Smoking