PT - JOURNAL ARTICLE AU - Restrepo, M. I. AU - Mortensen, E. M. AU - Pugh, J. A. AU - Anzueto, A. TI - COPD is associated with increased mortality in patients with community-acquired pneumonia AID - 10.1183/09031936.06.00131905 DP - 2006 Aug 01 TA - European Respiratory Journal PG - 346--351 VI - 28 IP - 2 4099 - http://erj.ersjournals.com/content/28/2/346.short 4100 - http://erj.ersjournals.com/content/28/2/346.full SO - Eur Respir J2006 Aug 01; 28 AB - Patients with chronic obstructive pulmonary disease (COPD) who develop community-acquired pneumonia (CAP) may experience worse clinical outcomes. However, COPD is not included as a distinct diagnosis in validated instruments that predict mortality in patients with CAP. The aim of the present study was to evaluate the impact of COPD as a comorbid condition on 30- and 90-day mortality in CAP patients. A retrospective observational study was conducted at two hospitals. Eligible patients had a discharge diagnosis and radiological confirmation of CAP. Among 744 patients with CAP, 215 had a comorbid diagnosis of COPD and 529 did not have COPD. The COPD group had a higher mean pneumonia severity index score (105±32 versus 87±34) and were admitted to the intensive care unit more frequently (25 versus 18%). After adjusting for severity of disease and processes of care, CAP patients with COPD showed significantly higher 30- and 90-day mortality than non-COPD patients. Chronic obstructive pulmonary disease patients hospitalised with community-acquired pneumonia exhibited higher 30- and 90-day mortality than patients without chronic obstructive pulmonary disease. Chronic obstructive pulmonary disease should be evaluated for inclusion in community-acquired pneumonia prediction instruments.