Diagnostic accuracy of fluorine-18-fluorodeoxyglucose positron emission tomography in gallbladder cancer: A meta-analysis

Table 1 Basic characteristics of the studies included in the systematic review

Ref.	Year	Country	Study design	Patients performing 18F-FDG-PET or PET/CT with GB lesions	Mean age (yr)	Gender (%male)
Koh et al[4]	2003	Japan	NR	16	68	44%
Anderson et al[5]	2004	United States	NR	14	65	57%
Rodríguez-Fernández et al[6]	2004	Spain	NR	16	68	31%
Wakabayashi et al[7]	2005	Japan	Prospective	30	71	50%
Nishiyama et al[8]	2006	Japan	Retrospective	32	70	37%
Oe et al[9]	2006	Japan	Retrospective	12	68	66%
Petrowsky et al[10]	2006	Switzerland	Prospective	14	NR	NR
Shukla et al[11]	2008	India	NR	24	45	33%
Corvera et al[12]	2008	United States	Retrospective	41	62	52%
Furukawa et al[13]	2008	Japan	Retrospective	18	NR	NR
Furukawa et al[14]	2009	Japan	Retrospective	18	NR	NR
Butte et al[15]	2009	Chile	Prospective	53	57	20%
Lee et al[16]	2010	South Korea	Retrospective	16	NR	NR
Zhu et al[17]	2010	United States	NR	10	NR	NR
Lee et al[18]	2012	South Korea	Retrospective	20	65	45%
Kumar et al[19]	2012	India	Retrospective	49	52	31%
Yamada et al[20]	2012	Japan	Retrospective	14	NR	NR
Albazaz et al[2]	2013	United Kingdom	Retrospective	30	NR	NR
Lee et al[21]	2013	South Korea	Retrospective	9	NR	NR
Onal et al[22]	2013	Turkey	Retrospective	10	63	70%
Ramos-Font et al[1]	2014	Spain	Prospective	49	68	43%

¹⁸F-FDG: Fluorine-18-fluorodeoxyglucose; PET: Positron emission tomography; CT: Computed tomography; NR: Not reported; GB: Gallbladder; GBCa: Gallbladder carcinoma.