Cumulative event curves for the composite endpoint of death, myocardial infarction, percutaneous coronary intervention, coronary artery bypass graft surgery, stroke and congestive heart failure by the presence or absence of collaterals in patients in whom a culprit artery could be identified. Red line (top) indicates the presence of collaterals, blue line (bottom) represents patients with no collaterals to the culprit vessel, log rank p=0.16.