Table 1. Patient Demographic and Clinical Characteristics.
| Characteristic | No. (%) | P Value | ||
|---|---|---|---|---|
| Total (N = 3 342 162) | ULM PCI (n = 33 128) | All Other PCI (n = 3 309 034) | ||
| Demographic Characteristics | ||||
| Age, mean (SD), y | 64.2 (12.1) | 71.8 (12.4) | 64.1 (12.1) | <.001 |
| Male | 2 223 570 (66.5) | 19 875 (60.0) | 2 203 695 (66.6) | <.001 |
| Race | <.001 | |||
| White | 2 898 809 (86.7) | 28 595 (86.3) | 2 870 214 (86.7) | |
| African American | 294 311 (8.8) | 2413 (7.3) | 291 898 (8.8) | |
| Asian | 89 073 (0.6) | 1278 (3.9) | 87 795 (2.7) | |
| Other | 28 018 (0.8) | 401 (1.2) | 27 617 (0.8) | |
| Hispanic ethnicity | 190 753 (5.7) | 1859 (5.6) | 188 894 (5.7) | .47 |
| Insurance payor | <.001 | |||
| None | 228 461 (6.8) | 939 (2.8) | 227 522 (6.9) | |
| Private | 2 154 816 (64.5) | 20 945 (63.2) | 2 133 871 (64.5) | |
| Medicare | 1 623 926 (48.6) | 23 113 (69.8) | 1 600 813 (48.4) | |
| Medicaid | 343 952 (10.3) | 3930 (11.9) | 340 022 (10.3) | |
| Military | 97 397 (2.9) | 1100 (3.3) | 96 297 (2.9) | |
| Other | 59 060 (1.8) | 502 (1.4) | 58 558 (1.8) | |
| History | ||||
| Current tobacco use | 963 078 (28.8) | 6447 (19.5) | 956 631 (28.9) | <.001 |
| Hypertension | 2 677 875 (80.1) | 28 497 (86.0) | 2 649 378 (80.1) | <.001 |
| Dyslipidemia | 2 523 393 (75.6) | 26 847 (81.2) | 2 496 546 (75.5) | <.001 |
| Family history of CAD | 766 160 (22.9) | 5318 (16.1) | 760 842 (23.0) | <.001 |
| Prior MI | 822 618 (24.6) | 11 262 (34.0) | 811 356 (24.5) | <.001 |
| Prior heart failure | 340 021 (10.2) | 9176 (27.7) | 330 845 (10.0) | <.001 |
| Prior PCI | 1 181 763 (35.4) | 12 402 (37.4) | 1 169 361 (35.3) | <.001 |
| ESRD on dialysis | 76 719 (2.3) | 1849 (5.6) | 74 870 (2.3) | <.001 |
| GFR, mean (SD) | 73.1 (17.6) | 73.1 (17.6) | 73.1 (17.5) | <.001 |
| Cerebrovascular disease | 358 974 (10.7) | 7153 (21.6) | 351 821 (10.6) | <.001 |
| Peripheral arterial disease | 328 052 (9.8) | 7224 (21.8) | 320 828 (9.7) | <.001 |
| Chronic lung disease | 480 397 (14.4) | 8106 (24.5) | 472 291 (14.3) | <.001 |
| Diabetes | 1 172 308 (35.1) | 13 368 (40.4) | 1 158 940 (35.0) | <.001 |
| Presentation Characteristics | ||||
| PCI status | <.001 | |||
| Elective | 1 291 227 (38.6) | 11 495 (34.7) | 1 279 732 (38.7) | |
| Urgent | 1 432 072 (42.9) | 18 091 (54.6) | 1 413 981 (42.7) | |
| Emergent | 615 190 (18.4) | 3265 (9.9) | 611 925 (18.5) | |
| Salvage | 2487 (0.1) | 263 (0.8) | 2224 (0.1) | |
| CAD presentation | <.001 | |||
| No symptoms | 225 269 (6.7) | 3274 (9.9) | 221 995 (6.7) | |
| Unlikely ischemic | 78 680 (2.4) | 860 (2.6) | 77 820 (2.4) | |
| Stable angina | 476 713 (14.3) | 4419 (13.3) | 472 294 (14.3) | |
| Unstable angina | 1 265 483 (37.9) | 13 881 (41.9) | 1 251 602 (37.8) | |
| Non-STEMI | 725 678 (21.7) | 8364 (25.3) | 717 314 (21.7) | |
| STEMI | 569 498 (17.0) | 2321 (7.0) | 567 177 (17.1) | |
| CCS class (2 wk) | <.001 | |||
| 0 | 338 201 (10.1) | 4509 (13.6) | 333 692 (10.1) | |
| 1 | 131 133 (3.9) | 912 (2.8) | 130 221 (3.9) | |
| 2 | 490 974 (14.7) | 3734 (11.3) | 487 240 (14.8) | |
| 3 | 1 170 340 (35.1) | 11 557 (34.9) | 1 158 783 (35.1) | |
| 4 | 1 204 445 (36.1) | 12 357 (37.4) | 1 192 088 (36.1) | |
| Antianginal medications (2 wk) | 2 304 937 (69.0) | 26 667 (80.5) | 2 278 270 (68.9) | <.001 |
| Heart failure medications (2 wk) | 325 063 (9.7) | 9816 (29.6) | 315 247 (9.5) | <.001 |
| Cardiomyopathy | 313 623 (9.4) | 7855 (23.7) | 305 768 (9.2) | <.001 |
| CathPCI Registry Procedural risk, mean (SD), % | 0.8 (2.6) | 2.3 (7.7) | 0.8 (2.5) | <.001 |
Abbreviations: CAD, coronary artery disease; CCS, Canadian Cardiovascular Society; ESRD, end-stage renal disease; GFR, glomerular filtration rate; MI, myocardial infarction; PCI, percutaneous coronary intervention; STEMI, ST-elevation myocardial infarction; ULM, unprotected left main.