Feasibility and diagnostic performance of dual-tracer-guided sentinel lymph node biopsy in cT1-2N0M0 gastric cancer: a systematic review and meta-analysis of diagnostic studies

Table 2 Patient characteristics of included studies

Author	Year	Country	Sample size	Patient age	Preoperative tumor stage	Tumor size (cm)	L/O
Ayako Shimada et al.	2016	Japan	156	59.5 ± 11.5	CT1N0M0	<4 cm	Both
Masahiro Niihara et al.	2016	Japan	385	26–86	CT1-2aN0M0	<4.0 cm in 286 patients, >4.0 cm in 99 patients	Both
Young Joon Lee et al.	2015	South Korea	108	20–80	CT1-2N0M0	<4 cm	L
Satoshi Kamiya et al.	2015	Japan	72	61.5 ± 12.7	CT1N0M0	<4 cm	O
Shuhei Mayanagi et al.	2014	Japan	40	66.0 ± 9.1	CT1N0M0	<4 cm	O
Yuko Kitagaw et al.	2013	Japan	397	29–87	CT1-2N0M0	<4 cm	O
Ju-Hee Lee et al.	2013	South Korea	24	40–80	CT1N0M0	≤4 cm	L
Do Joong Park et al.	2011	South Korea	68	55.9 ± 10.7	CT1-2N0M0	<4 cm	L
Hiroya Takeuchi et al.	2011	Japan	37	62.0 ± 12.0	CT1N0M0	<4 cm	L
Takashi Ichikura et al.	2009	Japan	38	30–81	CT1N0M0	<4 cm	O
Jun Ho Lee 3rd trial et al.	2009	South Korea	21	28–76	CT1N0M0	2–4 cm	L
Young Joon Lee (pick-up) et al	2008	South Korea	42	30–81	CT1-2N0M0	≤4 cm	L
Young Joon Lee (basin) et al.	2008	South Korea	50	35–85	CT1-2N0M0	≤4 cm	L
Jun Ho Lee et al.	2006	South Korea	64	60.0 ± 11.0	CT1N0M0	<5 cm	O
Yoshiro Saikawa et al.	2006	Japan	35	41–77	CT1N0M0	Unclear	L
Hitoshi Tonouchi et al.	2005	Japan	37	Unclear	CT1-2N0M0	Unclear	L
Tomoaki Karube et al.	2004	Japan	41	59 ± 10	CT1-2N0M0	Unclear	O
Hideki Hayashi et al.	2003	Japan	31	42–77	CT1-2N0M0	Unclear	O
Hitoshi Tonouchi et al.	2003	Japan	17	52–85	CT1N0M0	Unclear	L

ISSN: 1477-7819