Patient Characteristics
| Characteristic | No coronary artery disease (n = 53) | Coronary artery disease (n = 93) | P |
| Mean age ± SD (y) | 70.5 ± 8.3 | 70.6 ± 8.1 | NS |
| Male sex (n) | 29 (55) | 69 (74) | 0.02 |
| Exercise | 21 (40) | 47 (51) | NS |
| Adenosine | 32 (60) | 46 (49) | NS |
| Body mass index | 23.7 ± 3.1 | 24.1 ± 3.0 | NS |
| Hypertension (n) | 47 (89) | 83 (89) | NS |
| Dyslipidemia (n) | 33 (62) | 67 (72) | NS |
| Diabetes mellitus (n) | 14 (26) | 46 (49) | <0.01 |
| Current smoker (n) | 7 (13) | 14 (15) | NS |
| Prior smoker (n) | 21 (40) | 37 (40) | NS |
| Family history of coronary artery disease (n) | 14 (26) | 23 (25) | NS |
| LV function at rest | |||
| End-diastolic volume (mL) | 61.2 ± 17.2 | 63.6 ± 17.3 | NS |
| End-systolic volume (mL) | 16.8 ± 8.1 | 19.8 ± 9.2 | NS |
| Ejection fraction (%) | 74.1 ± 8.8 | 70.0 ± 8.3 | 0.01 |
| Transient ischemic dilatation | 1.0 ± 0.1 | 1.0 ± 0.1 | NS |
| LV phase analysis | |||
| Phase SD (°) | 10.2 ± 4.0 | 10.5 ± 3.9 | NS |
| Histogram bandwidth (°) | 37.8 ± 16.2 | 40.5 ± 17.4 | NS |
| PSS index | 5.6 ± 5.1 | 9.8 ± 10.2 | <0.01 |
| SSS | 3.8 ± 3.2 | 7.0 ± 4.8 | <0.01 |
| SRS | 1.7 ± 2.0 | 2.2 ± 3.0 | NS |
| SDS | 2.1 ± 2.9 | 4.8 ± 3.8 | <0.01 |
Data are expressed as mean ± SD or as number, with percentage in parentheses.
NS = not significant.