The burden of COPD in Spain: results from the Confronting COPD survey.

Chronic obstructive pulmonary disease is a smoking-related condition of progressive airflow obstruction, with disabling symptoms of chronic dyspnoea, cough and sputum production. In Spain, as in other countries worldwide, only a limited number of studies have attempted to quantify the impact of COPD on the patient, healthcare system and society. To obtain comprehensive information about the burden of this disease, an economic analysis of a large international survey, Confronting COPD in North America and Europe, was conducted. The results of the economic analysis of data from the Spanish survey sample estimated that the annual cost of COPD to the healthcare system was Euro 3238 per patient, with indirect costs amounting to Euro 300 per patient bringing the total societal cost of the disease to Euro 3538 per patient per year. A significant proportion of the economic burden of COPD on the Spanish healthcare system was associated with inpatient hospitalization (Euro 2708), which accounted for almost 84% of the total direct cost of the disease. As the major cause of inpatient hospitalization for COPD is acute exacerbations, these results highlight the need for interventions in the outpatient setting to prevent exacerbations in Spain. The impact of COPD on the healthcare system may also be due to the underdiagnosis and treatment of COPD, suggesting that costs may be reduced by improving the diagnosis and treatment of the disease in primary care. The sub-analysis of costs from the survey showed that patients with severe COPD were associated with considerably higher total societal costs than patients with mild disease (Euro 9850 versus Euro 1316 per patient). Therefore, introducing interventions to reduce the progression to severe COPD could also reduce the impact of the disease.