Table 3.
Comparisons Between Patients With and Without CPA in the Younger Group
| Total (n = 23,695) | Younger Patients With CPA (n = 1,711) | Younger Patients Without CPA (n = 21,984) | P Value | |
|---|---|---|---|---|
| Characteristics | ||||
| Age, y | 44 ± 4.4 | 44 ± 4.5 | 44 ± 4.4 | 0.35 |
| Male | 21,816 (92) | 1,539 (90) | 20,277 (92) | <0.001 |
| Hypertension | 12,836 (54) | 713 (42) | 12,123 (55) | <0.001 |
| Diabetes | 7,229 (31) | 488 (29) | 6,741 (31) | 0.07 |
| Dyslipidemia | 15,556 (66) | 793 (46) | 14,763 (67) | <0.001 |
| Current smoker | 14,911 (63) | 910 (53) | 14,001 (64) | <0.001 |
| Chronic kidney disease | 1,292 (5.5) | 207 (12) | 1,085 (4.9) | <0.001 |
| Dialysis | 337 (1.4) | 38 (2.2) | 299 (1.4) | 0.005 |
| History of PCI | 2,930 (12) | 149 (8.9) | 2,781 (13) | <0.001 |
| History of coronary artery bypass grafting | 106 (0.45) | 14 (0.83) | 92 (0.42) | 0.02 |
| History of heart failure | 779 (3.3) | 92 (5.6) | 687 (3.1) | <0.001 |
| History of myocardial infarction | 2,475 (11) | 116 (7.0) | 2,359 (11) | <0.001 |
| Chronic obstructive pulmonary disease | 62 (0.26) | 3 (0.18) | 59 (0.27) | 0.63 |
| Peripheral artery disease | 158 (0.67) | 23 (1.3) | 135 (0.61) | <0.001 |
| Diagnosis | <0.001 | |||
| STEMI | 18,974 (80) | 1,333 (78) | 17,641 (80) | |
| Non-STEMI | 4,001 (17) | 176 (10) | 3,825 (17) | |
| Unknown | 720 (3.0) | 202 (12) | 518 (2.4) | |
| Access site | <0.001 | |||
| Transfemoral intervention | 8,693 (37) | 1,243 (73) | 7,450 (34) | |
| Transradial intervention | 14,471 (61) | 401 (23) | 14,070 (64) | |
| Others | 530 (2.2) | 67 (3.9) | 463 (2.1) | |
| Number of diseased vessels | ||||
| 1 | 16,352 (69) | 1,078 (63) | 15,274 (69) | <0.001 |
| 2 | 5,087 (21) | 337 (20) | 4,750 (22) | 0.07 |
| 3 | 2,151 (9.1) | 235 (14) | 1,916 (8.7) | <0.001 |
| LMT lesion | 476 (2.0) | 147 (8.6) | 329 (1.5) | <0.001 |
| Target coronary artery | ||||
| Right coronary artery | 8,273 (35) | 515 (30) | 7,758 (35) | <0.001 |
| LMT–left anterior descending artery | 12,842 (54) | 1,215 (71) | 11,627 (53) | <0.001 |
| Left circumflex artery | 4,410 (19) | 301 (18) | 4,109 (19) | 0.27 |
| Bypass graft | 11 (0.046) | 2 (0.12) | 9 (0.041) | 0.41 |
| Outcomes | ||||
| In-hospital mortality | 334 (1.4) | 232 (14) | 102 (0.46) | <0.001 |
| Bleeding complications | 82 (0.35) | 50 (2.9) | 32 (0.15) | <0.001 |
| Access site bleeding | 42 (0.18) | 24 (1.4) | 18 (0.082) | <0.001 |
| Non–access site bleeding | 41 (0.17) | 27 (1.6) | 14 (0.064) | <0.001 |
| Cardiac tamponade | 10 (0.042) | 2 (0.12) | 8 (0.036) | 0.34 |
| Postprocedure shock | 439 (1.9) | 151 (8.8) | 288 (1.3) | <0.001 |
| Emergency operation | 30 (0.13) | 5 (0.29) | 25 (0.11) | 0.10 |
| Acute stent thrombosis | 115 (0.49) | 15 (0.88) | 100 (0.45) | 0.03 |