Comparison of patients who underwent appropriate and inappropriate myocardial perfusion imagings stratified by pretest probabilities
| Characteristic | Inappropriate (n=10, 17%) | Appropriate (n=49, 78%) | ||
| Mean | σ | Mean | σ | |
| Ejection fraction | 58% | 4.5 | 48% | 14.7 |
| Referral location | Outpatient | 100% | Inpatient | 100% |
| DFI* | <10% | 0.5 | >10%–90% | 0.7 |
| ASCVD score† | 9.0% | 8.0 | 17.4% | 15.4 |
| A1c level‡ | 5.9% | 0.8 | 7.4% | 2.0 |
*P=0.06.
†P=0.08.
‡P=0.02.
ASCVD, atherosclerotic cardiovascular disease;A1c, haemoglobin A1c; DFI, Diamond-Forrester Index.