Compared with patients with e′ ≥ 5.8 cm/s, those with e′ < 5.8 cm/s were more likely to be older, to have diabetes and history of myocardial infarction, to be prescribed angiotensin converting enzyme inhibitors/angiotensin receptor blockers, and to undergo coronary revascularization after the index cardiac catheterization and were less likely to be prescribed calcium blockers. The gene discussed is ACE; the disease is myocardial infarction.