Anatomical vs nonanatomical liver resection for solitary hepatocellular carcinoma: A systematic review and meta-analysis

Table 1 Characteristics of the studies included in the meta-analysis

Ref.	Country	Enrollment of period	Design/center	Patients		Quality score
				AR	NAR
Cho et al[10], 2019	Korea	Jan 2008-Sep 2014	R/Single	59	59	8
Eguchi et al[27], 2008	Japan	1994-2001	R/Multiple	2267	3514	7
Hirokawa et al[23], 2015	Japan	Jan 2001-Dec 2005	R/Multiple	72	72	8
Hokuto et al[12], 2018	Japan	Jan 2007-Dec 2015	R/Single	20	20	8
Ishii et al[26], 2014	Japan	Jan 2002-Dec 2010	R/Single	44	44	8
Jung et al[18], 2019	Korea	Jan 2006-Dec 2014	R/Single	936	388	8
Kaibori et al[21], 2017	Japan	2003-2007	R/Multiple	355	355	7
Kim et al[22], 2016	Korea	Jan 2003-Dec 2009	R/Single	27	72	7
Kudo et al[25], 2014	Japan	Apr 2000-Mar 2012	R/Single	121	112	7
Okamura et al[24], 2014	Japan	Sep 2002-May 2013	R/Single	64	64	8
Shin et al[19], 2018	Korea	Jan 2006-Dec 2015	R/Single	53	63	7
Shindoh et al[52], 2020	Japan	Jan 2011-Oct 2017	R/Single	38	165	7
Yamamoto et al[28], 2001	Japan	1990-1994	R/Single	90	114	7
Zhao et al[20], 2017	China	Jan 2004-Dec 2013	R/Multiple	114	114	8

R: Retrospective; AR: Anatomical resection; NAR: Non-anatomical resection.