TNNI3 and coronary artery disorder: cTnI+ patients were more likely to have pre-existing CAD (45.4% vs. 23.4%; OR 2.72; 95% CI, 1.31 to 5.62, P = 0.008), hypertension (77.9% vs. 60.9%; OR 2.26; 95% CI, 1.09 to 4.69, P = 0.04) and to be prescribed beta-blockers prior to hospital admission (36.3% vs. 17.2%; OR 2.75; 95% CI, 1.25 to 6.04, P = 0.01).