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Table 1 Summary of studies included in the meta-analysis

From: Robotic versus laparoscopic Gastrectomy for gastric cancer: a systematic review and updated meta-analysis

Author Region Study design Year Study
period
Sample size Level of lymphadenectomy Surgical extension Reconstruction Conversion (%)
LG RG LG RG
Pugliese Italy OCS (R) 2010 2000–2009 48 16 D2 D R-Y 3(6) 2(12)
Kim MC Korea OCS (P) 2010 2007–2008 11 16 D1 + β, D2 D B-I, B-II 0 0
Kim KM Korea OCS (P) 2012 2005–2010 861 436 D1 + α/β, D2 D, T B-I, B-II, R-Y NR NR
Son SY Korea OCS (R) 2012 2007–2011 42 21 D1 + β, D2 D, P, T B-I, B-II, R-Y NR NR
Kang Korea OCS (P) 2012 2008–2011 282 100 D1 + α/β, D2 D, T B-I, B-II, R-Y E 0
Zhang China OCS (R) 2012 2009–2011 70 97 D2 D, P, T B-I, B-II, R-Y 0 0
Hyun Korea OCS (P) 2013 2009–2010 83 38 D1 + α/β, D2 D, T B-I, B-II, R-Y 0 0
Son T Korea OCS (R) 2014 2003–2010 58 51 D2 T R-Y 0 0
Noshiro Japan OCS (P) 2014 2010–2012 160 21 D1 + α/β, D2 D B-I, B-II, R-Y 0 0
Huang Taiwan OCS (P) 2014 2008–2014 73 72 D1 + α/β, D2 D, T B-I, R-Y NR NR
Zhou China OCS (R) 2014 2010–2013 394 120 D1 + α/β, D2 D, P, T B-I, B-II, R-Y E E
Liu China OCS (R) 2014 2012–2013 100 100 D2 D, P, T B-I, B-II, R-Y 1(1) 0
Lee Korea OCS (P) 2015 2003–2010 267 133 D2 D B-I, B-II, R-Y NR NR
Han Korea OCS (R) 2015 2008–2013 68 68 D1 + β PPG GG 0 0
Park Korea OCS (P) 2015 2009–2011 612 145 D1 + α/β D, T B-I, B-II, R-Y 10(1.6) 3(2.0)
Suda Japan OCS (R) 2015 2009–2012 438 88 D1 + α/β, D2 D, T B-I, B-II, R-Y 0 0
Kim HI Korea OCS (P) 2016 2011–2012 185 185 D1 + α/β, D2 D, T B-I, B-II, R-Y 2(1.1) 1(0.5)
Shen China OCS (R) 2016 2011–2014 330 93 D1 + α/β, D2 D, T B-I, B-II, R-Y 0 0
Cianchi Italy OCS (R) 2016 2008–2015 41 30 D1 + α/β, D2 D B-II, R-Y 0 0
  1. OCS observational clinical study, P prospectively collected data, R retrospectively collected data, D distal gastrectomy, P proximal gastrectomy, T total gastrectomy, PPG pylorus-preserving gastrectomy, B-I Billroth-I, B-II Billroth-II, R-Y Roux-en-Y, GG gastro-gastro anastomosis, E exclude, NR not reported