Patient demographics and baseline characteristics.

Abbreviations: CR, clopidogrel resistance; CAD, coronary artery disease; UA, unstable angina; STEMI, ST segment elevation myocardial infarction; NSTEMI, non-ST segment elevation myocardial infarction; ACEI, angiotensin-converting enzyme inhibitor; ARB, angiotensin receptor blocker; CCB, calcium channel blocker. Data are expressed as mean ± SD or number of patients (percentage). The p values were determined by 1-way analysis of variance or chi-square between patients with CR and non-CR. Patient demographics and baseline characteristics.