Table 3.
Multivariable logistic regression analyses of variables associated with the magnitude of surgery-related trauma
| Variable | Multivariate analysis | P | |
|---|---|---|---|
| OR | 95 % CI | ||
| Length of incision (> 19.0 cm) | 14.71 | 4.03–52.63 | < 0.001 |
| Operative time (> 130 min) | 6.94 | 2.32–21.27 | 0.001 |
| Postoperative 1st day PLR (> 223.9) | 4.24 | 1.20-14.93 | 0.025 |
| Postoperative 1st day NLR (> 10.1) | 1.30 | 0.36–4.69 | 0.691 |
| Postoperative 1st day RBC (< lower limit × 10^12/L) | 1.19 | 0.20–7.02 | 0.846 |
| Postoperative 1st day HCRP (> 47.6 mg/L) | 2.11 | 0.64–6.99 | 0.218 |
| Postoperative 1st day HGB (< lower limit × g/L) | 2.44 | 0.27–22.22 | 0.429 |
| Intraoperative tourniquet use (yes) | 1.26 | 0.38–4.19 | 0.711 |
| Intraoperative blood loss (> 330ml) | 2.18 | 0.60-8.00 | 0.238 |
| Sex (male) | 1.93 | 0.56–6.71 | 0.297 |
| Age (years) | 1.01 | 0.95–1.07 | 0.699 |
| BMI (Kg/m^2) | 1.01 | 0.85–1.21 | 0.874 |
| Hypertension (yes) | 1.28 | 0.24–6.85 | 0.776 |
| Diabetes (yes) | 1.38 | 0.12–16.13 | 0.804 |
| Anesthetization (general) | 2.74 | 0.83–9.02 | 0.097 |
Note: P value < 0.05 was considered statistically significant. Abnormal reference range for RBC: male < 4 × 10^12/L and female < 3.5 × 10^12/L, for HGB: male < 130 g/L and female < 115 g/L. Abbreviations: BMI, body mass index; NLR, neutrophil-to-lymphocyte ratio; PLR, platelet-to-lymphocyte ratio; RBC, red blood cell; HGB, hemoglobin; HCRP, hypersensitive C-reactive protein