Table 2. Univariate and multivariate logistic regression analyses results for evaluating the risk factors associated with receiving perioperative blood transfusion.
| Variable | Univariate analysis | Multivariate analysis | ||||
|---|---|---|---|---|---|---|
| Unadjusted OR | 95% CI | p-value | Adjusted OR | 95% CI | p-value | |
| Gender | ||||||
| Male | Reference | Reference | ||||
| Female | 6.10 | 2.16-17.25 | 0.001 | 6.67 | 1.43-31.05 | 0.015 |
| BMI (continuous) | 0.93 | 0.87-0.99 | 0.032 | 0.91 | 0.81-1.03 | 0.142 |
| Preoperative ESR (continuous) | 1.02 | 1.00-1.04 | 0.010 | 1.00 | 0.98-1.02 | 0.830 |
| Preoperative Hb (continuous) | 0.61 | 0.52-0.71 | <0.001 | 0.71 | 0.57-0.89 | 0.003 |
| EBL (dichotomized) | ||||||
| ≤800 mL | Reference | Reference | ||||
| >800 mL | 8.61 | 4.79-15.46 | <0.001 | 14.07 | 5.86-33.77 | <0.001 |
| Pathologic tumor stage | ||||||
| Organ confined | Reference | Reference | ||||
| Extravesical | 1.64 | 1.04-2.60 | 0.032 | 1.03 | 0.48.-2.20 | 0.930 |
| No. of removed lymph nodes (continuous) | 0.97 | 0.94-0.99 | 0.022 | 0.97 | 0.93-1.00 | 0.051 |
| NACH | ||||||
| Not done | Reference | Reference | ||||
| Done | 6.17 | 1.87-20.2 | 0.003 | 5.93 | 1.26-27.93 | <0.001 |
OR, odd ratio; CI, confidence interval; BMI, body mass index; ESR, erythrocyte sedimentation rate; Hb, hemoglobin; EBL, estimated blood loss; NACH, neoadjuvant chemotherapy.