Table 1.
Variable | Number of patients | Univariate analysis |
Multivariate analysis |
|||
P | β | Risk ratio | 95%CI | P | ||
Estimated blood loss (mL) | <0.001 | 1.370 | 3.935 | 1.578-9.814 | 0.003 | |
≤ 800 (n = 91) | 8 | |||||
> 800 (n = 107) | 42 | |||||
Blood transfusion | <0.001 | 1.309 | 3.704 | 1.520-9.009 | 0.004 | |
No (n = 94) | 9 | |||||
Yes (n = 104) | 41 | |||||
Operative time (min) | <0.001 | - | - | - | - | |
≤ 300 (n=96) | 13 | |||||
> 300 (n=102) | 37 | |||||
Blood platelet count (×104/μL) | 0.022 | 1.043 | 3.069 | 1.287-6.250 | 0.01 | |
≤ 10 (n=49) | 19 | |||||
> 10 (n=149) | 31 |
CI: Confidence interval.