Day-of-week variability in the occurrence and outcome of aortic diseases: does it exist?

The DHS contains each patient's demographic data, date and department of admission and discharge, up to 9 discharge diagnoses, and the most important diagnostic procedures coded according to the International Classification of Diseases, Ninth Revision, Clinical Modification. [...]although weekends are characterized by a lower rate of acute coronary syndrome admissions than expected, there is a significantly higher proportion of acute coronary syndromes presenting with ST-elevation myocardial infarctions [10]. [...]due to this increased proportion with ST-elevation myocardial infarctions, there is a 10% higher proportion of coronary syndromes with AMI in the weekends.