Table 3.
Cox regression univariable analysis for long-term survival.
| Parameter | HR | 95% CI | p-Value |
|---|---|---|---|
| Demographical and clinical: | |||
| COPD | 2.51 | 1.29–4.88 | 0.007 |
| Stroke | 4.8 | 2.53–9.10 | <0.001 |
| PAD | 2.96 | 1.62–5.39 | <0.001 |
| Preoperative parameters: | |||
| PLR | 1 | 1.00–1.01 | 0.032 |
| Creatinine | 2.59 | 1.04–6.51 | 0.042 |
| Postoperative parameters: | |||
| Neutrophils | 1.12 | 1.07–1.17 | <0.001 |
| Neutrophils > 4.3 × 109/L | 3.68 | 1.56–8.68 | 0.003 |
| NLR | 1.16 | 1.10–1.22 | <0.001 |
| NLR > 3.5 | 2.74 | 1.54–4.88 | 0.001 |
| Platelets | 1.05 | 1.00–1.01 | 0.002 |
| PLR | 1.01 | 1.00–1.01 | 0.001 |
| SIRI > 5.4 | 2.05 | 1.10–3.83 | 0.025 |
| SII | 1 | 1.00–1.00 | <0.001 |
| SII > 953 | 3.26 | 1.81–5.88 | <0.001 |
| AISI | 1 | 1.00–1.00 | <0.001 |
| AISI > 663 | 2.82 | 1.48–5.39 | 0.002 |
| MLR | 2.2 | 1.08–4.49 | 0.03 |
| Echocardiographic: | |||
| LVEF | 0.928 | 0.90–0.95 | <0.001 |
| LVEF below 45% | 4.41 | 2.43–8.03 | <0.001 |
Abbreviations: AISI—aggregate index of systemic inflammation, 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—platelet to lymphocyte ratio, SII—systemic inflammatory index, SIRI—systemic inflammatory response index. Preoperative laboratory parameters were performed at the time of admission for surgery, while postoperative laboratory parameters were performed 24 h after surgery.