TABLE 1.

Description of the included studies

Author	Year of Publication	Number of patients manual anastomosis	Number of patients mechanic anastomosis	Histological type of neoplasm
Wshasg27	1991	25	27	NA
Valverde25	1996	74	78	NA
Craig5	1996	50	50	SCC e AC
Law15	1997	61	61	SCC
Laterza14	1999	21	28	SCC e AC
Walther26	2003	41	42	SCC e AC
Hsu11	2004	32	31	SCC
Okuyama19	2007	18	14	SCC
Luechakiettisak17	2008	59	58	SCC
Zhang29	2010	244	272	NA
Ma18	2010	52	47	SCC e AC
Cayi4	2012	125	102	SCC e AC
Saluja22	2012	87	87	SCC e AC

Legend: SCC=squamous cell carcinoma; AC=adenocarcinoma; NA=not available