- 1) have a history of overt CVD (myocardial infarction, percutaneous transluminal coronary angioplasty, surgery for ischemic heart disease, stroke, transient ischemic attack, carotid endarterectomy, peripheral arterial reconstructive surgery, or limb amputation), or 2) are on aspirin, or HMG-CoA reductase inhibitors (statins) or angiotensin-converting-enzyme inhibitor (ACEI), or 3) have significant co-morbidities including severe renal impairment defined as a glomerular filtration rate of less than 30 mL/min/1.73m2, alanine aminotransferase (ALT) ≥2xULN, hemoglobin level <8.5gm/dl, white blood cell count <3.5x109/liter, platelet count<100x109/liter, or 4) female of childbearing potential who are unwilling to use adequate contraception, pregnant or breastfeeding women, or 5) they are on glucocorticoids at a dose >10mg/day (equivalent dose of prednisolone)