Table 1.

Characteristics of included studies

Reference	Year	Complication	No. with complications	No. without complications
Hirai et al. 12	1998	Any	47	100
Kinugasa et al. 9	2004	Pulmonary	38	80
Rizk et al. 10	2004	Any	138	372
Abou‐Jawde et al. 13	2005	Pulmonary	18	123
Junemann‐Ramirez et al. 23	2005	Anastomotic leak	9	251
Martin et al. 28	2005	Anastomotic leak	30	446
Ancona et al. 24	2006	Pulmonary	110	327
		Any	85	437
Ferri et al. 26	2006	Any	98	336
Lerut et al. 11	2009	Any	97	41
Hu et al. 14	2010	Any	90	271
D'Annoville et al. 25	2012	Pulmonary	118	223
Xia et al. 29	2013	Any	72	99
Lindner et al. 27	2014
Adenocarcinoma		Any	14	49
Squamous cell carcinoma		Any	7	15
Booka et al. 3	2015	Pulmonary	64	220
		Anastomotic leak	55	229
Markar et al. 15	2015	Anastomotic leak	208	2231
Doorakkers et al. 16	2015	Any	75	221
Luc et al. 17	2015	Any	16	95
Baba et al. 18	2016	Pulmonary	99	403
		Any	217	285
Yamashita et al. 21	2016	Pulmonary	22	233
		Anastomotic leak	6	249
		Any	104	151
Kataoka et al. 19	2017	Pulmonary	22	130
		Anastomotic leak	21	131
Saeki et al. 20	2017
Stage 0–2		Pulmonary	44	360
		Anastomotic leak	88	316
Stage 3–4		Pulmonary	15	161
		Anastomotic leak	26	150
Stage 0–4		Any	154	426