Table 1. Characteristics of Patients Undergoing Stress Testing After Percutaneous Coronary Intervention by Symptom Status.
| Characteristic | No. (%) | P value | ||
|---|---|---|---|---|
| Overall | Asymptomatic patients | Symptomatic patients | ||
| No. of patients | 795 (100) | 65 (8.2) | 730 (91.8) | NA |
| Age, mean (SD), y | 65.7 (7.7) | 65.1 (7.2) | 65.7 (7.7) | .56 |
| Sex | ||||
| Female | 23 (2.9) | 1 (0) | 22 (3.0) | .46 |
| Male | 772 (97.1) | 64 (98.5) | 707 (96.8) | |
| Race and ethnicitya | ||||
| Black | 90 (11.3) | 14 (21.5) | 76 (10.4) | .09 |
| White | 679 (85.4) | 51 (78.4) | 628 (86.0) | |
| Otherb | 26 (3.3) | 0 | 26 (3.3) | |
| No. of antianginal medications prescribed | ||||
| 0 | 166 (20.8) | 17 (26.2) | 149 (20.4) | .03 |
| 1 | 397 (49.9) | 41 (63.1) | 356 (48.8) | |
| 2 | 201 (25.2) | 6 (9.2) | 195 (26.7) | |
| 3 | 24 (3.0) | 1 (1.5) | 23 (3.2) | |
| 4 | 1 (0) | 0 | 1 (0) | |
| Coronary anatomy, obstructive | ||||
| 1-Vessel | 461 (58.0) | 26 (40.0) | 435 (59.6) | .002 |
| 2-Vessel | 168 (21.1) | 24 (36.9) | 144 (19.7) | |
| 3-Vessel or left-main | 128 (16.1) | 14 (21.5) | 114 (15.6) | |
| Not available | 32 (4.0) | 1 (1.5) | 31 (4.2) | |
| Smoking history | 559 (70.3) | 46 (70.8) | 513 (70.3) | >.99 |
| Hypertension | 759 (95.5) | 63 (96.9) | 696 (95.3) | .78 |
| Hyperlipidemia | 767 (96.5) | 61 (93.8) | 706 (96.7) | .40 |
| Diabetes | 425 (53.5) | 39 (60.0) | 386 (52.8) | .33 |
| Family history of CAD | 184 (23.1) | 19 (29.2) | 165 (22.6) | .29 |
| Previous MI | 334 (42.0) | 26 (40.0) | 308 (42.2) | .83 |
| Heart failure | 200 (25.2) | 25 (38.5) | 175 (24.0) | .02 |
| Previous stroke or TIA | 70 (8.8) | 5 (7.7) | 65 (8.9) | .92 |
| Dialysis | 32 (4.0) | 6 (9.2) | 26 (3.6) | .06 |
| CKD | 171 (21.5) | 19 (29.2) | 152 (20.8) | .16 |
| PAD | 183 (23.0) | 17 (26.2) | 166 (22.7) | .64 |
Abbreviations: CAD, coronary artery disease; CKD, chronic kidney disease; MI, myocardial infarction; NA, not applicable; PAD, peripheral arterial disease; TIA, transient ischemic attack.
a
Race and ethnicity were obtained from the Veterans Affairs Corporate Data Warehouse and were self-reported or reported by a proxy.
b
Other included Asian, Hispanic or Latinx, and unknown race and ethnicity.