Table 1.
Baseline Characteristics in Patients Achieving ≥85% of Their MAPHR Relative to Workload Attained.
| Characteristic | <7 METS*
Achieved (n (%)) |
7-9 METS Achieved (n (%)) |
≥10 METS Achieved (n (%)) |
P-value |
|---|---|---|---|---|
| Total number of patients | 93 (24.4) | 192 (50.3) | 97 (25.4) | - |
| Age (median, 25th, 75th percentiles) | 73.0 (68.0, 77.0) | 70.5 (67.0, 74.0) | 70.0 (67.0, 73.0) | <0.001 |
| Male | 55 (59.1) | 112 (58.3) | 79 (81.4) | <0.001 |
| Chest pain | 54 (58.1) | 117 (60.9) | 62 (63.9) | 0.71 |
| Hypertension | 71 (76.3) | 143 (74.5) | 59 (60.8) | 0.026 |
| Diabetes mellitus | 23 (24.7) | 34 (17.7) | 9 (9.3) | 0.019 |
| Hyperlipidemia | 61 (65.6) | 140 (72.9) | 65 (67.0) | 0.37 |
| Current tobacco use | 29 (31.2) | 45 (23.4) | 20 (20.6) | 0.21 |
| BMI ≥30 | 20 (21.5) | 34 (17.7) | 8 (8.3) | 0.034 |
| Known CAD* | 29 (31.2) | 71 (37.0) | 41 (42.3) | 0.29 |
| History of MI* | 15 (16.1) | 38 (19.8) | 16 (16.5) | 0.68 |
| Prior revascularization | 23 (24.7) | 64 (33.3) | 33 (34.0) | 0.28 |
| Abnormal resting ECG* | 21 (22.6) | 26 (13.5) | 11 (11.3) | 0.07 |
| Same-day beta-blocker use | 5 (5.4) | 15 (7.8) | 4 (4.1) | 0.44 |
*
CAD=coronary artery disease; ECG=electrocardiogram; METS=metabolic equivalents; MI=myocardial infarction.