Table 1 Baseline Characteristics for Included Study Cohort
Characteristic | Data (n = 34,212) |
|---|---|
Age (years)a | 54 ± 13 |
Maleb | 18,703 (55) |
Raceb | |
 White | 23,801 (70) |
 Black | 9768 (29) |
 Others | 643 (1) |
Body Mass Index (kg/m2)a | 29.3 ± 5.8 |
Reason for Testb | |
 Chest Pain | 17,547 (51) |
 Shortness of Breath | 3307 (10) |
 Pre-Operation | 781 (2) |
 Rule out Ischemia | 3884 (11) |
Stress Variablesa | |
 Peak METS | 9.2 ± 3.1 |
 Resting Systolic Blood Pressure (mmHg) | 132 ± 19 |
 Resting Diastolic Blood Pressure (mmHg) | 82 ± 11 |
 Resting Heart rate (bpm) | 74 ± 13 |
 Peak Systolic Blood Pressure (mmHg) | 183 ± 27 |
 Peak Diastolic Blood Pressure (mmHg) | 86 ± 14 |
 Peak Heart Rate (bpm) | 151 ± 21 |
Chronotropic incompetenceb | 6957 (23.3) |
Past Medical Historyb | |
 Diabetes | 5907(17) |
 Hypertension | 20,534 (60) |
 Smoking | 15,249 (43) |
 Family History of CAD | 18,299 (51) |
Medications Usedb | |
 Diuretic Use | 5743 (16) |
 Hypertensive medications | 14,905 (42) |
 Diabetes medications | 2432 (7) |
 Statin | 4524 (13.2) |
 Aspirin | 5752 (16.8) |
 Beta Blockers | 5434 (15.9) |
 Calcium Channel Blockers | 4638 (13.5) |