Table 4. Blood loss.

Variable	Blood loss (mL)	Univariate		Multivariate
		p-value	p-value	B (95% CI)
Type of nephrectomy		0.040	0.013	−326.5 (−579.7 to −77.4)
Open	650.0 (300.0–1,225.0)
Laparoscopic	350.0 (200.0–450.0)
Number of nephrectomy		0.006	0.001	−454.3 (−716.4 to −192.0)
Unilateral	400.0 (250.0–550.0)
Bilateral	890.0 (450.0–1,300.0)
Kidney volume (g)		0.925	-	-
<1,500	513.8 (300.0–700.0)
≥1,500	552.5 (300.0–750.0)

Values are presented as median (interquartile range).

CI, confidence interval.