| Univariate analysis |  | Multivariate analysis |  |
---|---|---|---|---|
OR (95% CI) | P value | OR (95% CI) | P value | |
Age (year) | 4.055 (2.417–6.805) | <0.001 | 3.056 (1.956–4.965) | 0.012 |
Sex (%) | 1.099 (0.663–1.822) | 0.715 | NA |  |
BMI (%) | 1.668 (1.021–2.726) | 0.041 | NA |  |
Hypertension (%) | 2.242 (1.351–3.721) | 0.002 | NA |  |
Diabetes (%) | 2.584 (1.548–4.316) | <0.001 | NA |  |
History of smoking (%) | 2.735 (1.651–4.531) | <0.001 | NA |  |
History of alcohol (%) | 0.848 (0.520–1.383) | 0.509 | NA |  |
Chronic steroid use (%) | 1.391 (0.800–2.419) | 0.242 | NA |  |
COPD (%) | 2.589 (1.273–5.265) | 0.009 | NA |  |
History of blood transfusion (%) | 1.169 (0.611–2.237) | 0.637 | NA |  |
Preoperative VAS | 1.444 (0.832–2.506) | 0.192 | NA |  |
Preoperative JOA score | 1.096 (0.635–1.893) | 0.741 | NA |  |
Preoperative SF 36 | 0.665 (0.395–1.119) | 0.125 | NA |  |
Duration from admission to surgery (day) | 2.344 (1.418–3.874) | <0.001 | 1.985 (1.085–2.956) | 0.032 |
Length of surgical incision (cm) | 7.352 (4.235–12.761) | <0.001 | NA |  |
Duration of operation (h) | 8.906 (5.078–15.621) | <0.001 | 4.571 (1.787–11.692) | 0.002 |
P1% | 16.369 (8.826–30.356) | <0.001 | 3.400 (1.302–8.878) | 0.012 |
P2% | 0.667 (0.402–1.109) | 0.119 | NA |  |
Level | 0.817 (0.498–1.450) | 0.952 | NA |  |
Levels of fusion (%) | 1.639 (1.114–2.412) | 0.012 | NA |  |
Intraoperative infusion of crystalloids (ml) | 0.569 (0.341–0.949) | 0.031 | NA |  |
Intraoperative infusion of colloids (ml) | 0.765 (0.469–1.248) | 0.283 | NA |  |
Autologous blood transfusion (%) | 1.019 (0.601–1.730) | 0.943 | NA |  |
Allogeneic blood transfusion (%) | 1.771 (1.012–3.097) | 0.045 | NA |  |
Preoperative total cholesterol (mmol/L) | 9.384 (5.287–16.655) | <0.001 | 7.161 (2.523–20.322) | <0.001 |
Preoperative triglyceride (mmol/L) | 5.196 (3.059–8.828) | <0.001 | NA |  |
Preoperative Hct (%) | 1.576 (0.965–2.576) | 0.069 | NA |  |
Preoperative Hb (g/L) | 0.713 (0.436–1.167) | 0.178 | NA |  |
Preoperative ALB (g/L) | 4.478 (2.519–7.959) | <0.001 | NA |  |
Preoperative PT (s) | 13.872 (7.632–25.214) | 0.089 | NA |  |
Preoperative APTT (s) | 0.700 (0.424–1.156) | 0.164 | NA |  |
Preoperative Fib (mg/dL) | 0.525 (0.317–0.868) | 0.012 | 0.378 (0.179–0.598) | 0.029 |