Cath: Catheterization during hospital stay. PCI: Percutaneous coronary interventions. CABG: Coronary artery by pass grafting. β block: Use of beta blockers. Clopidog. : Use of clopidogrel. ACE inh. : Use of angiotensin converting enzime inhibitors. LMWH: Low molecular weight heparin. The overall pattern shows a lower utilization of every intervention and key evidence based medicine during the crisis, which may suggest a poorer quality of care. Asterisks indicate a p value of less than 0.05.