Table 2.
Multivariate analysis of factors associated with the rate of early blood transfusion.
| Variables | Odds Ratio | 95% CI | p-Value |
|---|---|---|---|
| * Blood loss ratio | 6.5717 | 4.8781–8.8532 | <0.0001 |
| * Oral anticoagulants | 2.7007 | 1.1633–6.2699 | 0.0208 |
| * Preoperative Hemoglobin (g/L) | 0.3155 | 0.2545–0.3912 | <0.0001 |
| * Age (y) | 1.6782 | 1.3794–2.0416 | <0.0001 |
| * Confirmed tumor stage (linear trend) | 2.0670 | 1.317–3.2441 | 0.0016 |
| * Confirmed tumor stage (quadratic trend) | 1.6233 | 1.0587–2.4892 | 0.0263 |
| * Confirmed tumor stage (cubic trend) | 0.9408 | 0.6111–1.4484 | 0.7818 |
| * Confirmed tumor stage (quartic trend) | 0.9705 | 0.6541–1.4398 | 0.8816 |
| * Duration of surgery < (min) | 1.2011 | 0.9812–1.4701 | 0.0757 |
| * Norepinephrine used | 0.7220 | 0.5028–1.0367 | 0.0776 |
| Sex (female) | 1.0356 | 0.8666–1.2376 | 0.7002 |
| Blood loss ratio * preoperative Hb | 1.2619 | 0.9714–1.6393 | 0.0814 |
| * Blood loss ratio * female gender | 1.3443 | 1.0112–1.7871 | 0.0417 |
* = Variables included in the final model. Level of significance p < 0.05, CI = confidence interval, Hb = hemoglobin.