“…Causes of death and admission to hospital were coded according to the International Classification of Diseases, 10th revision (ICD-10). Our primary outcome, used in all reports from this data set, 17,22 was death from coronary artery disease (ICD-10 codes I20-I25) as well as hospital admission because of an acute coronary syndrome (acute myocardial infarction, ICD-10 codes I21-I23) and unstable angina (ICD-10 codes I20.0-120.9, 124.0, I24.8, I24.9). The management outcomes were receipt of coronary angiography as a confirmatory diagnostic test and subsequent coronary revascularization (either percutaneous coronary intervention or coronary artery bypass surgery, whichever was first) within 3 years of a clinic visit.…”