The proportion of STEMI versus NSTEMI events varies in different registries and depends on the age of patients, their geographic location, and the type of surveillance used. In general, STEMI patients account for 29% to 47% of all AMI patients.9,10 Updating the existing STEMI/NSTEMI measure set was a priority for the ACC and AHA. Particular attention was given to evidence-based diagnostic and therapeutic strategies that 4 have high impact on outcomes (eg, Class I or III guideline recommendations) of patients with STEMI/NSTEMI and that satisfy the attributes of performance measures (eg, feasible, reliable, actionable). This writing committee developed the measures in this document after comprehensive examination of the most current relevant guidelines, internal discussion and internal voting, peer review, and public comment. 1.2. Disclosure of Relationships With Industry and Other Entities The Task Force makes every effort to avoid actual, potential, or perceived conflicts of interest that could arise as a result of relationships with industry or other entities (RWI). Detailed information on the ACC/AHA policy on RWI can be found online. All members of the writing committee, as well as those Table 1. 2017 AHA/ACC STEMI and NSTEMI Myocardial Infarction Clinical Performance and Quality Measures No. 