Table 2 Comparison of blood loss between different baseline characteristics
From: Risk factors of total blood loss in the posterior surgery for patients with thoracolumbar metastasis
N | Mean Blood loss(ml) | P | |
|---|---|---|---|
BMI(kg/m2) | 0.706 | ||
Overweight | 53 | 2101 ± 139 | |
Non-Overweight | 89 | 2027 ± 126 | |
Primary tumor | 0.004 | ||
Non-hyper vascular | 99 | 1848 ± 96 | |
Hypervascular | 43 | 2531 ± 203 | |
Surgical method | < 0.001 | ||
Palliative surgery (piece-meal) | 126 | 1936 ± 83 | |
Wide or marginal excision (piece-meal) | 11 | 2670 ± 623 | |
Wide or marginal excision (en-bloc) | 5 | 3710 ± 598 | |
Surgical site | 0.525 | ||
Upper thoracic | 56 | 2022 ± 164 | |
Llower thoracic | 44 | 1945 ± 157 | |
Lumbar | 42 | 2213 ± 163 | |
Surgery segment | 0.783 | ||
Single | 59 | 2086 ± 175 | |
Multiple | 83 | 2033 ± 104 | |
Extraosseous tumor mass | 0.035 | ||
No | 104 | 1936 ± 97 | |
Yes | 38 | 2382 ± 226 | |
Preoperative embolism | 0.051 | ||
No | 130 | 1999 ± 90 | |
Yes | 12 | 2658 ± 526 | |
PLT (109/L) | 0.251 | ||
< 100 | 6 | 2570 ± 552 | |
≥ 100 | 136 | 2032 ± 95 |