Table 1 Baseline characteristics of the four groups.
Group A | Group B | Group C | Group D | P-value | |
|---|---|---|---|---|---|
Age (yr) | 54.2 ± 9.4 | 54.7 ± 11.2 | 52.6 ± 9.9 | 53.3 ± 10.5 | 0.291 |
BMI (kg/m2) | 24.8 ± 3.5 | 24.8 ± 3.6 | 24.8 ± 3.8 | 25.4 ± 4.1 | 0.362 |
History of thrombosis (%) | 1.3 | 1.9 | 0.7 | 2.6 | 0.570 |
Hypertension (%) | 30.8 | 29.3 | 30.1 | 25.6 | 0.753 |
Diabetes (%) | 17.0 | 12.1 | 11.1 | 16.7 | 0.315 |
History of smoking (%) | 1.9 | 1.9 | 0.0 | 0.0 | 0.115 |
Varicosity (%) | 8.8 | 7.6 | 5.9 | 9.6 | 0.648 |
Preoperative anticoagulant usage (%) | 1.9 | 2.6 | 0 | 0 | 0.075 |
Preoperative chemotherapy (%) | 3.8 | 2.6 | 2.6 | 6.4 | 0.230 |
Heart disease (%) | 6.9 | 5.7 | 7.2 | 3.8 | 0.585 |
Respiratory diseases (%) | 3.8 | 1.9 | 3.3 | 1.3 | 0.469 |
Anemia (%) | 10.7 | 9.6 | 11.8 | 9.0 | 0.856 |
Open surgery (%) | 37.1 | 34.4 | 38.6 | 25.6 | 0.149 |
Operative time (min) | 165.3 ± 78.7 | 161.7 ± 81.1 | 196.6 ± 93.7 | 198.8 ± 95.3 | 0.000 |
Blood loss (mL) | 50 (20–150) | 50 (20–145) | 60 (30–200) | 50 (20–200) | 0.042 |
Transfusion (%) | 4.4 | 1.3 | 5.9 | 3.2 | 0.196 |
