Treatment differences among different time intervals.

a SD = standard deviationb PCI = Percutaneous coronary interventionc CABG = coronary artery bypass graftingDifferences in revascularization treatments received by patients categorized according to time of symptom onset. Ischemic and door-to-balloon times were measured from the time of symptom onset and the time of arrival at the emergency department to the time of first device deployment respectively.Treatment differences among different time intervals.