Table 1 Baseline characteristics according to the BMI categories
|  | Overall n = 4677 |  < 18.5 kg/m2 n = 127 (2.7%) | 18.5–23.9 kg/m2 n = 1496 (32.0%) | 24–27.9 kg/m2 n = 2029 (43.4%) |  ≥ 28 kg/m2 n = 1025 (21.9%) | P value |
|---|---|---|---|---|---|---|
Clinical characteristics | ||||||
 Age, years | 64.7 (12.5) | 75.4 (10.4) | 67.7 (12.0) | 63.9 (11.9) | 60.7 (13.1) |  < 0.001 |
 Male, n (%) | 3405 (72.8) | 61 (48.0) | 1037 (69.3) | 1538 (75.8) | 769 (75.0) |  < 0.001 |
 Hypertension, n (%) | 3037 (64.9) | 70 (55.1) | 885 (59.2) | 1335 (65.8) | 747 (72.9) |  < 0.001 |
 Dyslipidemia, n (%) | 2062 (44.1) | 31 (24.4) | 602 (40.2) | 919 (45.3) | 510 (49.8) |  < 0.001 |
 Diabetes, n (%) | 1566 (33.5) | 21 (16.5) | 508 (34.0) | 679 (33.5) | 358 (34.9) |  < 0.001 |
 Prior MI, n (%) | 514 (11.0) | 18 (14.2) | 168 (11.2) | 235 (11.6) | 93 (9.1) | 0.11 |
 Current smoker, n (%) | 2114 (45.2) | 44 (34.6) | 630 (42.1) | 954 (47.0) | 486 (47.4) |  < 0.001 |
 STEMI, n (%) | 2319 (49.6) | 64 (50.4) | 744 (49.7) | 1031 (50.8) | 480 (46.8) | 0.22 |
 Killip Class III-IV, n (%) | 478 (10.2) | 22 (17.3) | 170 (11.4) | 192 (9.5) | 94 (9.2) | 0.009 |
 LM or multivessel disease, n (%) | 3441 (73.6) | 54 (42.5) | 1053 (70.4) | 1556 (76.7) | 778 (75.9) |  < 0.001 |
 LVEF, % | 58.1 (10.3) | 55.5 (13.0) | 57.4 (11.0) | 58.3 (10.0) | 58.7 (9.6) |  < 0.001 |
 Heart rate, bpm | 75.5 (15.1) | 77.3 (17.6) | 75.8 (16.5) | 75.1 (14.3) | 75.4 (14.2) | 0.28 |
 SBP, mmHg | 128.9 (22.3) | 126.3 (23.8) | 127.3 (22.6) | 128.7 (21.9) | 132.0 (22.1) |  < 0.001 |
 Long-term GRACE risk score | 113.6 (27.7) | 139.5 (26.1) | 120.8 (27.1) | 111.2 (26.0) | 104.6 (27.6) |  < 0.001 |
Laboratory values | ||||||
 FPG, mmol/L | 6.8 (2.8) | 5.5 (2.0) | 6.7 (2.9) | 6.9 (2.8) | 7.0 (2.8) |  < 0.001 |
 Hemoglobin, g/L | 132.9 (22.5) | 116.1 (23.2) | 128.4 (22.5) | 135.1 (21.9) | 137.3 (21.4) |  < 0.001 |
 eGFR, mL/min/1.73m2 | 107.2 (36.5) | 97.8 (47.1) | 104.3 (37.9) | 108.6 (35.4) | 109.6 (34.8) |  < 0.001 |
 hs-CRP, mg/L | 6.9 (2.3, 19.2) | 10.2 (1.4, 19.8) | 6.2 (1.8, 19.3) | 6.8 (2.3, 19.0) | 7.9 (2.8, 19.6) | 0.010 |
 Peak value of hs-TnI, ng/mL | 7.6 (1.2, 35.7) | 2.7 (0.6, 11.4) | 7.3 (1.1, 34.8) | 8.3 (1.3, 37.4) | 7.6 (1.1, 34.7) |  < 0.001 |
 Peak value of NT-proBNP, pg/mL | 1524 (491, 4787) | 8974 (2348, 24123) | 2064 (700, 6922) | 1348 (455, 3892) | 1041 (338, 3007) |  < 0.001 |
 LDL-C, mmol/L | 2.6 (0.8) | 2.2 (0.7) | 2.5 (0.8) | 2.6 (0.8) | 2.7 (0.8) |  < 0.001 |
 HDL-C, mmol/L | 1.0 (0.2) | 1.2 (0.3) | 1.1 (0.3) | 1.0 (0.2) | 1.0 (0.2) |  < 0.001 |
 Total cholesterol, mmol/L | 4.5 (1.1) | 4.1 (1.0) | 4.3 (1.1) | 4.5 (1.1) | 4.6 (1.1) |  < 0.001 |
 Triglyceride, mmol/L | 1.4 (1.0, 2.0) | 0.9 (0.7, 1.2) | 1.2 (0.9, 1.7) | 1.5 (1.1, 2.1) | 1.6 (1.2, 2.3) |  < 0.001 |
Acute treatment | ||||||
 Aspirin, n (%) | 4181 (89.4) | 92 (72.4) | 1286 (86.0) | 1862 (91.8) | 941 (91.8) |  < 0.001 |
 Clopidogrel/Ticagrelor, n (%) | 3895 (83.3) | 82 (64.6) | 1197 (80.0) | 1747 (86.1) | 869 (84.8) |  < 0.001 |
 ACEI/ARB, n (%) | 2954 (63.2) | 50 (39.4) | 853 (57.0) | 1327 (65.4) | 724 (70.6) |  < 0.001 |
 β-blocker, n (%) | 3356 (71.8) | 74 (58.3) | 1014 (67.8) | 1512 (74.5) | 756 (73.8) |  < 0.001 |
 Statins, n (%) | 3989 (85.3) | 89 (70.1) | 1236 (82.6) | 1773 (87.4) | 891 (86.9) |  < 0.001 |
 Diuretics, n (%) | 586 (12.5) | 22 (17.3) | 199 (13.3) | 244 (12.0) | 121 (11.8) | 0.22 |
 PCI, n (%) | 3469 (74.2) | 52 (40.9) | 1037 (69.3) | 1595 (78.6) | 785 (76.6) |  < 0.001 |