Table 1. Demographics.

Variable	Mean (± SD) or percentage
Age (years)	59±12
Non white	31%
Body mass index (kg/m2)	29±6
Systolic blood pressure (mmHg)	140±22
Heart rate (BPM)	67±12
Ejection fraction	62±10
Typical angina	31%
Current smoker	20%
History of smoking	55%
History of coronary artery disease	72%
History of hyperlipidemia	67%
History of diabetes	24%
Total number of cardiac medications	1.5±1

SD, standard deviation; BPM, beats per minute.