Table 1 Summary of studies included in the 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 |