Table 1 Baseline characteristics according to different AIP index groups
Variables | Tertile 1 (n = 1846) | Tertile 2 (n = 1846) | Tertile 3 (n = 1846) | P value |
|---|---|---|---|---|
Demographic characteristics | ||||
 AIP index | − 0.10 ± 0.13 | 0.17 ± 0.06 | 0.46 ± 0.15 |  < 0.001* |
  Age, years | 60.55 ± 9.94 | 57.33 ± 10.10 | 54.35 ± 10.31 |  < 0.001* |
  BMI, kg/m2 | 24.80 ± 3.36 | 25.67 ± 3.00 | 26.47 ± 2.97 |  < 0.001* |
  Male, % | 1366 (74) | 1463 (79.3) | 1565 (84.8) |  < 0.001* |
 CAD, % | ||||
  CCS | 703 (38.1) | 722 (39.1) | 681 (36.9) | 0.38 |
  ACS | 1143 (61.9) | 1124 (60.9) | 1165 (63.1) |  |
Coexisting conditions, % | ||||
 Hypertension | 1156 (62.6) | 1092 (59.2) | 1110 (60.1) | 0.084 |
 Hyperlipidemia | 1077 (58.3) | 1140 (61.8) | 1299 (70.4) |  < 0.001* |
 Renal dysfunction | 669 (36.2) | 691 (37.4) | 634 (34.3) | 0.143 |
 Smoker | 960 (52.1) | 1059 (57.5) | 1207 (65.5) |  < 0.001* |
 Cerebrovascular diseases | 187 (10.1) | 169 (9.2) | 140 (7.6) | 0.024* |
 COPD | 49 (2.7) | 40 (2.2) | 33 (1.8) | 0.198 |
 Previous myocardial infarction | 484 (26.2) | 660 (35.8) | 723 (39.2) |  < 0.001* |
 Previous CABG | 63 (3.4) | 65 (3.5) | 64(3.5) | 0.984 |
 Previous PCI | 393 (21.3) | 398 (21.6) | 374(20.3) | 0.593 |
 Peripheral vascular diseases | 40 (2.2) | 33 (1.8) | 35(1.9) | 0.692 |
Lab test | ||||
 TG, mmol/l | 1.03 ± 0.26 | 1.51 ± 0.33 | 2.56 ± 1.13 |  < 0.001* |
 TC, mmol/l | 4.05 ± 0.99 | 4.14 ± 1.03 | 4.42 ± 1.12 |  < 0.001* |
 Creatine, umol/l | 73.14 ± 14.10 | 75.75 ± 14.55 | 76.79 ± 14.80 |  < 0.001* |
 Urine acid, umol/l | 321.46 ± 73.58 | 351.23 ± 79.93 | 377.06 ± 84.63 |  < 0.001* |
 HbA1C, % | 5.88 ± 0.33 | 5.88 ± 0.34 | 5.88 ± 0.33 | 0.216 |
 HDL-C, mmol/l | 1.28 ± 0.28 | 1.02 ± 0.20 | 0.86 ± 0.18 |  < 0.001* |
 LDL-C, mmol/l | 2.37 ± 0.87 | 2.54 ± 0.89 | 2.63 ± 0.94 |  < 0.001* |
 Albumin, g/l | 43.04 ± 4.17 | 42.92 ± 4.00 | 43.06 ± 4.03 | 0.542 |
 LVEF, % | 64.03 ± 6.62 | 63.19 ± 7.32 | 62.74 ± 7.22 | 0.003* |
Angiographic and procedural details | ||||
 Left main involved, % | 104 (5.6) | 119 (6.4) | 89 (4.8) | 0.101 |
 CTO | 138 (7.5) | 144 (7.8) | 181 (9.8) | 0.022* |
 Number of stents | 1.72 ± 1.00 | 1.79 ± 1.05 | 1.86 ± 1.10 | 0.218 |
 Diameters of stents | 3.03 ± 0.53 | 3.03 ± 0.51 | 3.05 ± 0.53 | 0.259 |
 SYNTAX score | 11.12 ± 7.47 | 11.79 ± 7.66 | 11.91 ± 7.72 | 0.003* |
 TVD, % | 687 (37.2) | 737 (39.9) | 731 (39.6) | 0.183 |
Medicine at discharge | ||||
 β-blocker | 1475 (82.4) | 1563 (87.6) | 1576 (88.0) | 0.001* |
 Statin | 1732 (96.8) | 1730 (97.0) | 1717 (95.9) | 0.19 |
 ACEI/ARB | 902 (50.4) | 958 (53.7) | 988 (55.2) | 0.012* |
 DAPT | 1833 (99.3) | 1828 (99.0) | 1831 (99.2) | 0.782 |
 CCB | 884 (49.4) | 825 (46.3) | 804 (44.9) | 0.022* |