Abstract
Background: This study aims to describe trends in the rate of acute myocardial infarction (AMI) in patients with and without COPD in Spain, 2001-2010.
Methods: We selected all patients with a discharge of AMI using national hospital discharge data. Discharges were grouped by COPD status: COPD and non COPD. The cumulative incidence of discharges attributed to AMI were calculated overall and stratified by COPD status and year. We calculated length of stay (LOS) and in-hospital mortality (IHM).
Results: From 2001 to 2010, 513,517 discharges with AMI were identified (7.79% with COPD). The cumulative incidence of discharges due to AMI in COPD patients increased (from 15.69 cases per 100,000 in 2001 to 18.4 in 2003), then decreased to 12.77% in 2010. The pattern was similar in non-COPD patients. It increased from 193.22 cases per 100.000 in 2001 to 211.12 in 2010, and then decreased to 177.79 in 2010. LOS and IHM decreased significantly over time in both groups. LOS decreased from 10.71 (9.64) days in 2001 to 9.09 (9.21) days in 2010 in COPD patients, and from 9.97 (9.14) days in 2001 to 8.9 (9) days in 2010 in non-COPD patients. IHM also decreased from 12.29% in 2001 to 10.82% in 2010 in COPD patients, and from 11.67% to 8.17% in 2010 in non-COPD patients.
Conclusions: AMI hospitalization rates increased initially and have since declined slowly. LOS and IHM have decreased significantly in both groups, remaining higher in COPD patients.
- © 2014 ERS