Table 1. Single arm studies.

First author	Year	Country	No. of patients)	Morbidity rate (%)	Mortality rate (%)	Blood loss (mg)	Operation time (minutes)	No. of retrieved lymph nodes	Hospital stay (days)	Follow-up period (months)	3-year OS (%)	5-year OS (%)
Anderson (15)	2007	America	7	14	0	300*	420*	24*	4*	10*	–	–
Patriti (16)	2008	Italy	13	46	0	103**	286**	–	11**	2**	–	–
Pugliese (17)	2008	Italy	17	6	6	90**	352**	26**	10**	14*	–	–
Song (11)	2009	Korea	100	13	1	128**	231**	37**	8**	–	–	–
D’Annibale (18)	2011	Italy	24	8	0	30*	268*	28*	6*	48*	–	–
Isogaki (19)	2011	Japan	61	4	2	62; 150**	388; 520**	42; 43**	–	–	–	–
Lee (20)	2011	Korea	12	8	0	135**	253**	46**	7**	–	–	–
Patriti (21)	2011	Italy	17	41	0	279**	327**	28**		20**	–	–
Park (22)	2012	Korea	60	10	0	–	247**	–	–	–	–	–
Kim (23)	2013	Korea	12	0	0	46**	235**	42**	6**	–	–	–
Liu (24)	2013	China	110	11	0	81**	271**	23**	6**	–	–	–
Park (25)	2013	Korea	200	10	1	146**	249**	38**	8**	–	–	–
Park (26)	2014	Korea	30	17	0	–	218*	34*	7*	–	–	–
Coratti (27)	2015	Italy	98	12	4	105**	296**	–	7*	47**	–	73.3
Harrison (28)	2015	America	62	11	4	–	230; 302*	19; 29*	6,11*	–	–	–
Kakeji (29)	2015	Japan	10	20	0	63*	274*	–	11*	–	–	–
Parisi (30)	2015	Italy	22	0	0	200*	270*	19*	6*	–	–	–
Zhang (31)	2015	China	8	0	0	63**	224**	24**	4**	–	–	–
Zhou (32)	2015	China	105	5	–	120**	237**	34**	8**	–	–	–
Barchi (33)	2016	Brazil	6	–	0	–	408**	40**	–	–	–	–
Herrera-Almario (34)	2016	America	31	5	–	88*	221*	29*	–	–	–	–
Quijano (35)	2016	Spain	17	24	0	400*	498*	21*	14*	–	–	–

*, median; **, mean.