A systematic review and meta-analysis of hernia sac management in laparoscopic groin hernia mesh repair: reduction or transection?

Table 1 List of the included studies, quality assessment, and the risk of bias evaluation

First author	Journal	Year of publication	Study design	Country	Study period	Quality assessment (MINORS/CONSORT)	New-Castle Ottawa scale			Cochrane risk of bias 2
First author	Journal	Year of publication	Study design	Country	Study period	Quality assessment (MINORS/CONSORT)	Selection	Comparability	Outcome	Randomization process	Deviations from intended interventions	Bias in measurement of outcome	Bias to missing outcome data	Bias in selecting the reported results	Overall bias
Choi et al.	Journal of laparoendoscopic & advanced surgical techniques	2011	CCT	Korea	July 2003 - December 2008	20	**	**	**	-	-	-	-	-	-
Lau et al.	Journal of laparoendoscopic & advanced surgical techniques	2002	CCT	China	September 1999 - July 2001	20	**	**	**	-	-	-	-	-	-
Lei-liu et al.	Asian Journal of Surgery	2022	CCT	China	January 2020 - June 2021	19	***	**	**	-	-	-	-	-	-
Li et al.	Surgical Endoscopy	2019	RCT	China	May 2017 - May 2018,	19	-	-	-	Low risk	Low risk	Low risk	Low risk	Low risk	Low risk
Pan et al.	BMC Surgery	2022	CCT	China	January 2017 - January 2019	18	***	**	**	-	-	-	-	-	-
Ruze et al.	Surgical Endoscopy	2018	RCT	China	May 2015 - September 2017	20	-	-	-	Low risk	Some concerns	Low risk	Low risk	Low risk	Some concerns

MINORS: Methodological index for non-randomized studies; CONSORT: Consolidated Standards of Reporting Trails; CCT: clinical controlled trials; Randomized controlled trials

ISSN: 1471-2482