Table 1.

Characteristics of cohort studies on comparison between endoscopic resection and laparoscopic resection

Author	Year	Country	Design	Gender (n)	Age (years)	Tumor diameter (cm)	ER (n)	LAP (n)	Comparison	Quality∗
Wang et al[13]	2011	China	Retrospective cohort	M/F: 54/55	35–52	<4.0	66	53	Operation timeLOHSHospitalization costComplications	8
Jeong et al[5]	2012	Korea	Prospective cohort	M/F: 36/48	Mean 55.4	Mean 3.1	27	57	Operation timeLOHSPositive marginsComplicationsRecurrence	8
Dong et al[14]	2014	China	Retrospective cohort	M/F: 7/11	32–74	<5.0	10	8	Operation timeLOHSBlood loss	7
Wu et al[15]	2015	China	Retrospective cohort	M/F: 61/31	Mean 43.5	2.5–5.0	50	42	Operation timeLOHSComplicationsRecurrence	8
Meng et al[16]	2016	China	Retrospective cohort	M/F: 30/45	Mean 52.6	Mean 1.1	27	48	Operation timeLOHSHospitalization costBlood lossComplicationsRecurrence	9
Dai et al[17]	2017	China	Retrospective cohort	M/F: 136/199	Mean 57.0	<3.5	262	73	Operation timeLOHSHospitalization costComplicationsRecurrence	7
Meng et al[22]	2017	China	Retrospective cohort	M/F: 60/66	Mean 52.2	<2.0	75	51	Operation timeLOHSBlood lossComplicationsRecurrence	8
Gluzman et al[18]	2017	Russia	Retrospective cohort	NA	Mean 61.2	<5.0	22	40	Operation timeLOHSBlood lossComplications	7
He et al[19]	2018	China	Retrospective cohort	M/F: 92/54	Median 54	ER: 3.4LAP: 3.7	62	84	Operation timeLOHSHospitalization costComplications	8
Yin et al[20]	2018	China	Retrospective cohort	M/F: 42/49	Mean 57.6	<5.0	46	30	Operation timeLOHSBlood lossPositive marginsComplicationsRecurrence	7
Chen et al[21]	2018	China	Retrospective cohort	M/F: 39/62	ER: 57LAP:61	2.0–5.0	35	66	Operation timeLOHSHospitalization costComplicationsRecurrence	7
Zhao et al[10]	2019	China	Retrospective cohort	M/F:60/89	ER: 57.0LAP:57.7	<5.0	85	64	LOHSComplicationsPositive margins	7

^∗The ‘star system’ of the Newcastle-Ottawa scale. ER: Endoscopic resection; F: Female; LAP: Laparoscopic resection; LOHS: Length of hospital stay; M: Male; NA: Not available.