Table 2 Results of the Univariable Analysis of Preoperative Factors for Potential Association with Blood Transfusion
Variable | Underwent blood | P value |
|---|---|---|
Transfusion | ||
No. (%) | ||
Gender | 0.832 | |
Male | 485 (34.9) | |
Female | 244 (35.4) | |
Age (years) | 0.001 | |
≤ 60 | 425 (32.5) | |
> 60 | 304 (39.4) | |
BMI | 0.000 | |
Underweight (< 18.5) | 159 (49.2) | |
Normal and overweight (≥ 18.5) | 570 (32.4) | |
Preoperative hemoglobin level | 0.000 | |
Normal | 343 (24.5) | |
Mild anemia | 331 (53.8) | |
Moderate anemia | 48 (75.0) | |
T stage | 0.000 | |
1 | 60 (32.3) | |
2 | 139 (20.5) | |
3 | 91 (25.0) | |
4 | 439 (51.6) | |
ASA | 0.000 | |
1 | 9 (27.3) | |
2 | 370 (28.0) | |
3 | 331 (47.8) | |
4 | 19 (61.3) | |
Tumor localization | 0.015 | |
Maxillofacial malignant tumor | 132 (43.3) | |
Buccal mucosa | 87 (36.7) | |
Floor of mouth | 72 (32.7) | |
Oropharynx | 66 (42.9) | |
Tongue | 261 (28.3) | |
Salivary adenocarcinoma | 111 (45.7) | |
Category of flap | 0.028 | |
Free flap | 363 (32.9) | |
Pediculated flap | 366 (37.5) | |
Type of free-flap reconstruction | 0.002 | |
Osseous | 157 (42.1) | |
Nonosseous | 572 (33.5) | |