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Table 2 Patient characteristics of included studies

From: 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

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
  1. L laparoscopic surgery, O opening surgery