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Table 1 Baseline Clinical Characteristics of 52 Patients.

From: Comparison of VerifyNow-P2Y12 test and Flow Cytometry for monitoring individual platelet response to clopidogrel. What is the cut-off value for identifying patients who are low responders to clopidogrel therapy?

  N (%) or mean ± SD
Age (years) 64 ± 11
Male 39 (75)
Ejection fraction % 53 ± 8
Body mass index >30, kg/m2 7 (15)
Hematocrit % 36.6 ± 8.3
Platelet count (× 103/μL) 251 ± 127
Risk Factors  
Diabetes 14 (28)
-Insulin dependent Diabetes 6 (12)
Hypertension 32 (64)
Hypercholesterolemia 31 (62)
Current smoking 5 (10)
History  
Previous MI 23 (46)
Previous PCI 16 (48)
Previous CABG 6 (12)
Chronic renal failure† 2 (4)
Coronary Artery Disease n, (%)  
1 vessel 12 (28)
2 vessel 29 (55)
3 vessel 18 (34)
Therapy n, (%)  
Beta-blockers 32 (61)
ACE-inhibitors 30 (57)
Nitrates 10 (19)
Ca-antagonists 17 (32)
Statins 38 (71)
  1. Values are expressed as means ± SDs or number (percentages) of patients.
  2. MI = acute myocardial infarction; PCI = percutaneous coronary intervention; CABG = coronary artery bypass graft. †Defined as the presence of previously documented renal failure and/or a baseline serum creatinine level > 2 mg/dl.