Baseline Characteristics of Patients
| Characteristic | Angiography group | Low-likelihood group | P |
| Number | 650 | 345 | Not applicable |
| Age (y) | 64 ± 12 | 52 ± 11 | <0.01 |
| Male (%) | 57 | 39 | <0.01 |
| Female (%) | 43 | 61 | <0.01 |
| Diabetes mellitus (%) | 27 | 0 | <0.01 |
| Hypertension (%) | 64 | 39 | <0.01 |
| Hyperlipidemia (%) | 51 | 39 | <0.01 |
| Smoking (%) | 19 | 23 | 0.08 |
| Exercise SPECT (%) | 34 | 100 | <0.01 |
| Adenosine SPECT (%) | 66 | 0 | <0.01 |
| Mean ejection fraction ± SD (%) | 61.7 ± 12.2 | 64.0 ± 10.5 | 0.47 |
| Catheterization (≥70% stenosis) | |||
| 0-vessel disease | 181 (28%) | Not applicable | Not applicable |
| 1-vessel disease | 206 (32%) | Not applicable | Not applicable |
| 2-vessel disease | 148 (23%) | Not applicable | Not applicable |
| 3-vessel disease | 115 (17%) | Not applicable | Not applicable |