“…Yet, it should be highlighted that the endpoints considered in the present study, in particular in-hospital and 1-year mortality, are less likely to be affected by coding errors. Second, some specific pieces of information on clinical variables or laboratory tests closely associated with AMI prognosis, in particular left ventricular ejection fraction, renal function, extent of coronary artery disease, completeness of myocardial revascularization, and late presentation in STEMI patients, were not available [23,24]. Similarly, with respect to the old patient, key variables of functional status, cognitive status, patient preferences, and hospitalization ward that could influence PCI referral were not available.…”