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Management and outcome indices in chronic obstructive pulmonary disease (COPD): 2000–2009. (a) Mean age of prevalent COPD cases, at COPD diagnosis and at death. (b) Proportion of patients in each COPD severity category. (c) Proportion of COPD patients who received triple therapy. (d) Number of oral corticosteroid prescriptions per COPD patient-year. (e) Number of COPD consultations per patient-year.
