Table 1.

Inclusion criteria

Author–year of publication		Nation	Type of study	No. of patients included	Time of enrolment	Type of access	No. of patients for access (laparosopic/open)
Wang 2020		China	R	280	2010–2015	LA (M)-OA	160	120
Menoufia University	Elbalshy 2019	Egypt	RCT	60	2016–2019	LA (M)-OA	30	30
	El Fol 2019
Jin 2019		China	R	153	2011–2015	LA (M)-OA	71	82
Pelz 2018		Germany	R	279	2009–2016	LA (M)-OA	24	255
Shin 2018		South Korea	P	2249	2000–2013	LA (M)-OA	1010	1239
Yu 2018		China	R	218	2010–2014	LA (M)-OA	102	116
Li 2018		China	R	88	2012–2015	LA (M)-OA	40	48
Aiypov 2018		Russia	R	59	NR	LA (M)-OA	11	48
Rasulov 2017		Russia	P	39	2015–2016	LA (M)-OA	22	17
Chen 2017		China	R	82	2011–2012	LA (M)-OA	27	55
Mondal 2017		Bangladesh	P	24	2015–2017	LA (M)-OA	14	10
Huang 2015		China	R	102	2012–2013	LA (M)-OA	53	49
Yin 2015		China	R	267	2010–2014	LA (M)-OA	75	192
Liu 2015		China	R	84	2011–2012	LA (M)-OA	44	40
Gao 2015		China	R	55	2010–2014	LA (M)-OA	18	37
Zhao G 2014		China	R	46	2010–2013	LA (M)-OA	24	22
Cong 2014		China	R	178	2008–2011	LA (M)-OA	96	82
Bae 2014		South Korea	R	170	2006–2008	LA (M)-OA	85	85
Zhao L 2014		China	R	220	2006–2009	LA (M)-OA	119	101
Han 2014		China	R	324	2003–2010	LA (M)-OA	177	147
Guan 2010		China	R	61	2006–2010	LA (M)-OA	29	32

Type of study: RCT, randomized control study; R, observational retrospective; P, observational prospective

Type of approach: LA, laparoscopic assisted; OA, open access; M: multiport