Table 1 Basic clinical and procedural characteristics.
Variables | Derivation cohort (n = 534) | Validation cohort (n = 386) |
|---|---|---|
Age, years | 68.3 ± 13.9 | 65.6 ± 13.3 |
Male, n% | 371 (69.5%) | 287 (74.4%) |
SBP, mmHg | 134.6 ± 26.3 | 124.3 ± 20.3 |
DBP, mmHg | 78.2 ± 16.4 | 81.2 ± 18.3 |
Heart rate, bpm | 82.3 ± 17.8 | 81.6 ± 16.5 |
Smoking | 251 (47.0%) | 209 (54.1%) |
Alcohol intake | 52 (9.7%) | 59 (15.3%) |
Hypertension | 381 (71.3%) | 220 (57.0%) |
Diabetes | 156 (29.2%) | 88 (22.8%) |
Serum creatinine, μmol/L | 107.2 ± 66.7 | 78.4 ± 31.3 |
eGFR, mL/min/1.73 m2 | 61.6 ± 26.3 | 80.9 ± 26.7 |
HDL-C, mmol/L | 1.23 ± 0.37 | 1.12 ± 0.38 |
LDL-C, mmol/L | 2.41 ± 0.76 | 2.49 ± 0.86 |
Uric acid, μmol/L | 350.1 ± 40.6 | 349.5 ± 84.2 |
Serum albumin, g/L | 37.6 ± 1.6 | 38.1 ± 3.7 |
WBC, 109/L | 9.77 ± 3.86 | 9.29 ± 3.43 |
Neutrophil ratio(%) | 77.8 ± 9.88 | 74.3 ± 13.1 |
Hemoglobin, g/L | 129.2 ± 20.4 | 134.2 ± 19.5 |
LogBNP | 3.19 ± 0.71 | 3.11 ± 0.68 |
Use of isotonic contrast agents | 87 (16.3%) | 76 (19.7%) |
Hydration therapy | 85 (15.9%) | 85 (22.0%) |
STEMI | 465 (87.1%) | 287 (74.4%) |
PCI | 427 (80.0%) | 278 (72.0%) |
CAG | 107 (20.0%) | 108 (28.0%) |
Access site | ||
Radial access | 524 (98.1%) | 374 (96.9%) |
Femoral access | 10 (1.9%) | 12 (3.1%) |
Contrast volume | ||
>100 mL | 25 (4.7%) | 28 (7.3%) |
≤100 mL | 509 (95.3%) | 358 (92.7%) |
Hypotension before procedure | ||
Yes | 14 (2.6%) | 53 (13.7%) |
No | 520 (97.4%) | 333 (86.3%) |
CI-AKI | ||
Yes | 114 (21.3%) | 50 (13.0%) |
No | 420 (78.7%) | 336 (87.0%) |
