Table 1.

Characteristics of included studies

Study	Study type	No. of patient	Year	EUS MHz	Patient selection	Blinded	Reference test
Habermann et al.	R	51	2004	7.5/12.0	No	Yes	Yes
Polkowski et al.	P	88	2004	7.5/12.0	No	Yes	Yes
Ahn et al.	P	434	2009	5/12.0	Unknown	Yes	Yes
SW Hwang et al.	R	277	2010	5/7.5/12/20	No	Unknown	Yes
Furukawa et al.	R	175	2011	5/7.5/12/20	No	Yes	Yes
Feng et al.	R	610	2013	5/7.5/12/20	No	Yes	Yes
Fairweather et al.	R	49	2015	5/10	Unknown	Yes	Yes
Giganti et al.	P	52	2016	5/10	No	Yes	Yes

R retrospective study, P prospective study