Table 1.
Patient Characteristics
| All | Non‐obstructivea | Obstructive | pValue | |
|---|---|---|---|---|
| 518 | 106 (20.5) | 412 (79.5) | ||
| Sex | ||||
| M, n (%) | 348 (67.2) | 51 (14.7) | 297 (85.3) | <0.001 |
| F, n (%) | 170 (32.8) | 55 (32.3) | 115 (67.6) | |
| Race/ethnicityb | ||||
| Asian, n (%) | 58 (11.2) | 5 (8.6) | 53 (91.4) | 0.001 |
| Black, n (%) | 66 (12.7) | 24 (36.4) | 42 (63.6) | |
| Hispanic, n (%) | 149 (29.0) | 31 (20.8) | 118 (79.2) | |
| White, n (%) | 229 (44.2) | 41 (17.9) | 188 (82.1) | |
| Age (y) | ||||
| All | 61±14 | 65±12 | 0.002 | |
| M | 57±14 | 64±12 | <0.001 | |
| F | 65±14 | 68±11 | 0.081 | |
| Indication for angiography | ||||
| STEMI, n (%) | 76 (14.7) | 13 (17.1) | 63 (82.9) | 0.538 |
| NSTEMI, n (%) | 182 (35.1) | 35 (19.2) | 147 (80.8) | |
| UA, n (%) | 260 (50.2) | 58 (22.3) | 202 (77.7) | |
| Hospital | ||||
| BHC, n (%) | 255 (49.2) | 57 (22.4) | 198 (77.6) | 0.294 |
| NYU, n (%) | 263 (50.8) | 49 (18.6) | 214 (81.4) | |
Abbreviations: ACS, acute coronary syndrome; BHC, Bellevue Hospital Center; F, female; M, male; n, number of patients; NSTEMI, non– ST‐segment elevation myocardial infarction; NYU, New York University Langone Medical Center; STEMI, ST‐segment elevation myocardial infarction; UA, unstable angina.
a
“Non‐obstructive” specifies <50% stenosis in all epicardial vessels.
b
Excludes 15 patients in race category “other”