Study Group Populations and Data Acquisition Characteristics
| Characteristic | LLK test/training | CAD | P |
| No. of patients | 100 | 623 | |
| Male | 30% | 57% | <0.001 |
| Female | 70% | 43.3% | <0.001 |
| Mean age ± SD (y) | 52.3 ± 12 | 64 ± 12 | <0.0001 |
| Mean body mass index ± SD | 29 ± 6.7 | 31 ± 9.6 | 0.0007 |
| Diabetes | 0% | 27% | <0.001 |
| Hypertension | 40% | 64% | <0.001 |
| Hyperlipidemia | 40% | 51% | <0.001 |
| Smoking | 23% | 24% | 0.14 |
| Family history | 53% | 37% | 0.001 |
| Typical angina | 4% | 11% | <0.001 |
| Dyspnea | 11% | 11% | 0.95 |
| 8-bin gated SPECT | 98% | 62% | <0.0001 |
| 16-bin gated SPECT | 2% | 38% | <0.0001 |
| Exercise SPECT | 100% | 33% | <0.0001 |
| Adenosine SPECT | 0% | 67% | <0.0001 |