Table 5.

Basic characteristics of the included studies.

Author	Time	Region	ICG group	Traditional group	Characteristicsa	NOS
Nishino et al. (11)	2017	Japan	23	29	③⑤	8
Aoki et al. (12)	2018	Japan	25	72	②③⑤	8
Chen et al. (13)	2019	China	12	12	①②③④⑤	7
Zhou et al. (14)	2019	China	21	21	①②⑤	8
Xiao et al. (15)	2019	China	67	46	①②⑤	7
Fang et al. (16)	2019	China	23	25	②④	7
Lei et al. (17)	2019	China	36	54	②③⑤	7
Liu et al. (18)	2019	China	24	84	②③④⑤	7
Ma et al. (19)	2019	China	35	40	①②④	7
Lu et al. (20)	2020	China	57	63	①②④	8
Zhang et al. (21)	2020	China	30	34	②③④⑤	8
Pan et al. (22)	2020	China	42	43	①②③④⑤	8
Wang et al. (23)	2020	China	74	74	①⑤	8
Xie and Wu (24)	2020	China	38	65	②③④⑤	7
Zou et al. (25)	2020	China	65	65	②③⑤	7
Wang et al. (26)	2021	China	40	40	①②③④⑤	8
Xin et al. (27)	2021	China	31	31	①②③④⑤	7

^a①, R0 resection; ②, operation time; ③, intraoperative blood loss; ④, postoperative hospital stay; and ⑤, postoperative complications.