Table 1 Characteristics of the studies included in the meta-analysis
Author | Year published | Country | Study design | Study date | Sample size | Postoperative complications Clavien-Dindo classification (I/II/III/IV/V) | NOS | ||
|---|---|---|---|---|---|---|---|---|---|
ER-LG group | LG-only group | ER-LG group | LG-only group | ||||||
Ebihara Y | 2015 | Japan | Retrospective | 2006-2013 | 38 | 38 | II/III | II/III | 8 |
Lee EG | 2017 | Korea | Retrospective | 2003-2013 | 199 | 1505 | I/II/III/IV/V | I/II/III/IV/V | 8 |
Lee H | 2019 | Korea | Retrospective | 2013-2018 | 107 | 428 | Unknown | Unknown | 8 |
Tsujimoto H | 2012 | Japan | Retrospective | 2008-2010 | 17 | 80 | Unknown | Unknown | 7 |
Shindo K | 2020 | Japan | Retrospective | 2000-2014 | 47 | 94 | III/IV/V | III/IV/V | 7 |
Komatsu S | 2013 | Japan | Retrospective | 2007-2011 | 30 | 172 | Unknown | Unknown | 7 |
Aoyama J | 2020 | Japan | Retrospective | 2013-2018 | 21 | 21 | II/III/IV/V | II/III/IV/V | 8 |
Jiang X | 2012 | Japan | Retrospective | 2006-2009 | 111 | 600 | Unknown | Unknown | 8 |
Suzuki T | 2013 | Japan | Retrospective | 2000-2010 | 25 | 78 | Unknown | Unknown | 7 |