Table II.
Patient cardiac comorbidities
| Variable | Overall (N = 380) |
No workup (n = 28) |
ECG only (n = 127) |
TTE (n = 208) |
Stress test (n = 12) |
Coronary angiography (n = 5) |
P value |
|---|---|---|---|---|---|---|---|
| Known CAD | 109 (28.7) | 2 (7.1) | 39 (30.7) | 59 (28.4) | 5 (41.7) | 4 (80) | .005 |
| History of MI | 46 (12.1) | 1 (3.6) | 10 (7.9) | 29 (13.9) | 4 (33.3) | 2 (40) | .01 |
| Congestive heart failure | 24 (6.3) | 0 (0) | 9 (7.1) | 13 (6.2) | 1 (8.3) | 1 (20) | .298 |
| Ejection fraction | 55 (55-55) | 55 (55-55) | 55 (55-55) | 55 (55-55) | 55 (51–55) | 50 (48–52) | .425 |
| Prior coronary revascularization | .126 | ||||||
| None | 303 (79.7) | 28 (100) | 102 (80.3) | 162 (77.9) | 8 (66.7) | 3 (60) | |
| PCI | 34 (8.9) | 0 (0) | 16 (12.6) | 15 (7.2) | 2 (16.7) | 1 (20) | |
| CABG | 37 (9.7) | 0 (0) | 7 (5.5) | 27 (13) | 2 (16.7) | 1 (20) | |
| CABG and PCI | 6 (1.6) | 0 (0) | 2 (1.6) | 4 (1.9) | 0 (0) | 0 (0) |
CABG, Coronary artery bypass grafting; CAD, coronary artery disease; ECG, electrocardiography; IQR, interquartile range; MI, myocardial infarction; PCI, percutaneous coronary intervention; TTE, transthoracic echocardiography.
Values are expressed as median (interquartile range) or number (%).