Table 4.
Cox regression univariable analysis.
| Parameter | HR | 95% CI | p-Value |
|---|---|---|---|
| Demographical and clinical: | |||
| 1. Age | 1.04 | 1.01–1.07 | 0.006 |
| 2. Age >62 years | 1.97 | 1.19–3.24 | 0.007 |
| 3. COPD | 2.77 | 1.64–4.68 | <0.001 |
| 4.PAD | 2.36 | 1.47–3.79 | <0.001 |
| Preoperative parameters: | |||
| 1. WBC | 1 | 0.93–1.07 | 0.984 |
| 2. NLR > 2.5 | 1.75 | 1.09–2.79 | 0.019 |
| 3. MLR > 0.2 | 2.46 | 1.33–4.55 | 0.004 |
| 4. MCHC | 0.67 | 0.47–0.94 | 0.021 |
| 5. MCHC > 21.1 | 1.05–2.65 | 0.028 | |
| 6. PLR | 1.01 | 1.00–1.01 | 0.039 |
| Postoperative parameters: | |||
| 1. WBC | 1.05 | 1.02–1.08 | 0.004 |
| 2. Lymphocytes | 0.67 | 0.47–0.94 | 0.02 |
| 3. Lymphocytes < 2.6 | 2.34 | 1.08–5.08 | 0.032 |
| 4. Neutrophils | 1.12 | 1.07–1.16 | <0.001 |
| 5. Neutrophils > 5.3 | 1.92 | 1.23–3.00 | 0.004 |
| 6. NLR | 1.16 | 1.10–1.22 | <0.001 |
| 7. NLR > 3.5 | 2.66 | 1.72–4.12 | <0.001 |
| 8. MLR > 0.49 | 1.78 | 1.13–2.78 | 0.012 |
| 9. PLR | 1 | 1.00–1.01 | 0.005 |
| 10. PLR > 136 | 2.18 | 1.31–3.62 | 0.003 |
| Echocardiography: | |||
| 1. Preoperative LV | 1.04 | 1.01–1.07 | 0.21 |
| 2. Preoperative LV > 49 mm | 1.53 | 0.98–2.38 | 0.058 |
| 3. Preoperative LVEF | 0.96 | 0.94–0.98 | <0.001 |
| 4. LVEF < 50% | 2.31 | 1.47–3.61 | <0.001 |
| 5. Postoperative LV | 1.06 | 1.03–1.09 | <0.001 |
| 6. Postoperative LV > 48 mm | 2.41 | 1.50–3.87 | <0.001 |
| 7. Postoperative LVEF | 0.94 | 0.93–0.96 | <0.001 |
| 8. Postoperative LVEF < 45% | 3.49 | 2.21–5.52 | <0.001 |
Abbreviations: COPD—chronic obstructive pulmonary disease, Hb—hemoglobin, LV—left ventricle, LVEF—left ventricle ejection fraction, MCHC—mean corpuscular hemoglobin concentration, MLR—monocyte to lymphocyte ratio, NLR—neutrophil to lymphocyte ratio, PAD—peripheral artery disease, PLR—platelets to lymphocyte ratio, WBC—white blood cells.