Transthoracic vs transhiatal surgery for cancer of the esophagogastric junction: A meta-analysis

Table 1 Basic characteristics of all of the pooled studies in the meta-analysis

Ref.	No. of patients		Age (mean ± SD or range)		Sex (M/F)		Siewert’s classification	Design	Country
	TT	TH	TT	TH	TT	TH
Gianotti et al[10]	33	58	61/11	66/13	21/12	38/20	II III	PS	Italy
Graham et al[11]	32	119	63/(22-86)	63/(22-86)	NR	NR	I II III	RS	England
Hulscher et al[12]	114	106	64/(35–78)	69/(23–79)	97/17	92/14	I II	RCT	Netherlands
Omloo et al[14]
Nakamura et al[13]	71	84	64/(28-90)	64/(28-90)	NR	NR	I II III	RS	Japan
Sasako et al[15]	85	82	63/(38–75)	60/(36–75)	63/22	71/11	II III	RCT	Japan
Wayman et al[16]	20	20	63/(59-70)	71/(43-78)	15/5	15/5	I II III	PS	England
Zheng et al[17]	284	47	60.7/0.57	56.4/1.6	204/80	31/16	II	RS	China

SD: Standard deviation; NR: Not reported; TT: Transthoracic group; TH: Transhiatal group; PS: Prospective study; RS: Retrospective study; RCT: Randomized controlled trial.