| Demographic data |
| Men |
66 (75%) |
50 (74%) |
0.855 |
| Age (yrs, mean +/− SD) |
62±11 |
62±12 |
0.916 |
| Cardiac risk factors |
| Diabetes |
29 |
(33%) |
31 |
(46%) |
0.135 |
| Hypertension |
71 |
(81%) |
62 |
(91%) |
0.073 |
| Hyperlipidemia |
81 |
(92%) |
58 |
(85%) |
0.203 |
| Current tobacco use |
30 |
(34%) |
25 |
(37%) |
0.739 |
| Peripheral vascular disease |
27 |
(31%) |
19 |
(28%) |
0.727 |
| Family history of coronary artery disease |
43 |
(49%) |
30 |
(44%) |
0.628 |
| Medical history |
| Prior stroke |
8 |
(9%) |
10 |
(15%) |
0.318 |
| Prior angina pectoris |
50 |
(57%) |
41 |
(60%) |
0.744 |
| Congestive heart failure |
9 |
(10%) |
6 |
(9%) |
1.000 |
| Prior myocardial infarction |
40 |
(45%) |
24 |
(35%) |
0.251 |
| History of cardiac arrhythmias |
8 |
(9%) |
7 |
(10%) |
0.792 |
| Prior coronary artery bypass surgery |
23 |
(26%) |
15 |
(22%) |
0.579 |
| Prior percutaneous coronary intervention |
27 |
(31%) |
26 |
(38%) |
0.310 |
| Chronic medications |
| Beta-blocker |
64 |
(73%) |
53 |
(78%) |
0.576 |
| Angiotensin-converting enzyme inhibitor |
44 |
(50%) |
37 |
(54%) |
0.746 |
| Aspirin |
79 |
(90%) |
63 |
(93%) |
1.000 |
| Insulin |
12 |
(14%) |
17 |
(25%) |
0.098 |
| Oral hypoglycemic |
11 |
(13%) |
7 |
(10%) |
0.802 |
| Calcium channel-blocker |
17 |
(19%) |
9 |
(13%) |
0.288 |
| Clopidogrel |
20 |
(23%) |
15 |
(22%) |
0.849 |
| HMG coA-reductase inhibitor |
68 |
(77%) |
52 |
(76%) |
0.693 |
| Extent of coronary artery disease |
| Number of diseased vessels |
2.4+/−1.2 |
1.9+/−1.0 |
0.009 |
| 1-vessel disease |
22 |
(25%) |
29 |
(43%) |
0.025 |
| 2-vessel disease |
27 |
(31%) |
19 |
(28%) |
0.727 |
| 3-vessel disease |
26 |
(29%) |
17 |
(25%) |
0.590 |
| >3 vessel disease |
13 |
(15%) |
3 |
(4%) |
0.060 |
| Presence of any occluded artery |
75 |
(85%) |
19 |
(28%) |
<0.0001 |
