Table 3. Comparison of surgical outcomes between LLH and OLH groups after PSM.

Outcomes	LLH (n=27)	OLH (n=52)	P
Blood loss (mL)	100.0 (10.0–800.0)	200.0 (10.0–1,000.0)	0.034
Blood transfusion, n (%)	0 (0.0)	2 (3.8)	0.544†
Hepatic portal occlusion	3 (11.1)	33 (63.5)	<0.001
Resection margin (cm)	1.2±1.0	1.0±0.7	0.597
Clavien-Dindo grade, n (%)			0.116†
I	27 (100.0)	45 (86.6)
II	0 (0.0)	6 (11.5)
IIIa	0 (0.0)	1 (1.9)

^†, Fisher’s exact test. LLH, indicates laparoscopic left hemihepatectomy; OLH, open left hemihepatectomy; PSM, propensity score matching.