Table 1. Baseline clinical, laboratory, and echocardiographic characteristics according to NLR tertiles.
| Variables | NLR | P value | ||
|---|---|---|---|---|
| < 1.87 (n = 248) | 1.87–4.90 (n = 248) | > 4.90 (n = 248) | ||
| Age, yr | 64 ± 13 | 60 ± 13 | 60 ± 13 | 0.001 |
| Male | 201 (81) | 216 (87) | 207 (84) | 0.464 |
| BMI, kg/m2 | 24.3 ± 3.8 | 24.2 ± 3.8 | 24.3 ± 3.3 | 0.970 |
| Systolic blood pressure, mmHg | 127 ± 32 | 126 ± 36 | 129 ± 29 | 0.598 |
| Diastolic blood pressure, mmHg | 78 ± 21 | 79 ± 24 | 80 ± 21 | 0.731 |
| Heart rate, beats per min | 79 ± 22 | 79 ± 25 | 77 ± 21 | 0.374 |
| Hypertension | 126 (51) | 104 (42) | 135 (54) | 0.419 |
| Diabetes mellitus | 79 (32) | 64 (26) | 89 (36) | 0.333 |
| Dyslipidemia | 65 (26) | 73 (29) | 101 (41) | 0.001 |
| Smoking | 136 (55) | 156 (63) | 149 (60) | 0.129 |
| White blood cell, × 109/L | 10.4 ± 3.0 | 11.5 ± 3.6 | 13.9 ± 4.9 | < 0.001 |
| Hemoglobin, g/dL | 14.7 ± 1.8 | 14.8 ± 5.9 | 14.0 ± 2.2 | 0.024 |
| Platelets, × 109/L | 252.9 ± 61.9 | 253.0 ± 99.4 | 247.2 ± 89.0 | 0.690 |
| Neutrophil, % | 46.5 ± 8.7 | 68.9 ± 5.8 | 83.0 ± 4.8 | < 0.001 |
| Lymphocyte, % | 42.9 ± 7.9 | 23.0 ± 4.6 | 10.8 ± 3.2 | < 0.001 |
| NLR | 1.15 ± 0.39 | 3.17 ± 0.87 | 8.91 ± 4.57 | < 0.001 |
| High-sensitivity C-reactive protein, mg/dL | 0.36 ± 1.27 | 1.52 ± 7.49 | 2.06 ± 4.10 | 0.001 |
| Creatinine, mg/dL | 1.15 ± 1.19 | 1.12 ± 0.37 | 1.24 ± 0.84 | 0.253 |
| Lactate | 7.0 ± 4.7 | 6.8 ± 6.0 | 5.1 ± 4.9 | 0.396 |
| Peak creatine kinase, IU/L | 3,223.5 ± 3,619.8 | 2,929.6 ± 2,768.2 | 3,670.5 ± 3,132.2 | 0.037 |
| Peak CK-MB, ng/mL | 224.3 ± 196.3 | 243.1 ± 194.2 | 286.8 ± 193.4 | 0.001 |
| Peak troponin I, ng/mL | 110.7 ± 107.7 | 119.0 ± 179.8 | 140.4 ± 93.6 | 0.044 |
| Left ventricular ejection fraction, % | 47 ± 8 | 46 ± 7 | 44 ± 8 | < 0.001 |
| Wall motion score index | 1.56 ± 0.37 | 1.57 ± 0.32 | 1.70 ± 0.37 | < 0.001 |
BMI = body mass index, NLR = neutrophil-to-lymphocyte ratio, CK-MB = creatine kinase myocardial band.