Characteristics of Training and External Testing Populations
| Characteristic | Training (n = 4,886) | External testing (n = 604) | P |
|---|---|---|---|
| Age (y) | 64 (56–73) | 60 (53–68) | <0.001 |
| Male | 2,705 (55) | 341 (48) | <0.001 |
| Body mass index | 29 (26–34) | 28 (25–32) | <0.001 |
| Past medical history | |||
| Hypertension | 3,204 (67) | 255 (36) | <0.001 |
| Diabetes mellitus | 1,292 (27) | 71 (10) | <0.001 |
| Dyslipidemia | 2,649 (55) | 195 (28) | <0.001 |
| History of CAD | 873 (18) | 67 (9) | <0.001 |
| Stress test type | |||
| Exercise | 1,775 (36) | 393 (56) | <0.001 |
| Pharmacologic | 3,106 (64) | 313 (44) | <0.001 |
Qualitative data are number and percentage; continuous data are median and IQR.