Baseline Characteristics and Follow-up Duration.

* ACT was checked only in the heparin arm† 32% of patients had non-ST-elevation myocardial infarction‡ Elective in patients with high bleeding risk§ Elective in patients with high ischemic riskData are formatted as bivalirudin arm/ heparin armACS = acute coronary syndrome; ACT = activated clotting time; DM = diabetes mellitus; MI = myocardial infarction; NSTEMI = Non-ST-elevation myocardial infarction; NR = not reported; PCI = percutaneous coronary intervention; SD = standard deviation; STEMI = ST-elevation myocardial infarction.Baseline Characteristics and Follow-up Duration.