Table 1 Basic information of eligible studies for para-aortic lymphadenectomy
Author | Year | Country | Sample size | Resection margin | Time to para-aortic lymphadenectomy (synchronous/metachronous) | Number of positive para-aortic lymph nodes | Sample size of control group | Pooled value | NOS score |
|---|---|---|---|---|---|---|---|---|---|
Min | 2008 | Korea | 6 | R0: 6 | Metachronous | 6 | 32 | OS | 6 |
Lee, S.C. | 2021 | Korea | 47 | No mentioned | Synchronous | 47 | 26 | OS, HR, CR | 7 |
Choi | 2015 | Korea | 24 | No mentioned | Metachronous | 24 | 53 | OS, HR, CR | 7 |
Kim | 2020 | Korea | 16 | No mentioned | Metachronous | 13 | 19 | OS | 7 |
Nozawa | 2020 | Japan | 11 | No mentioned | No mentioned | 11 | 130 | OS | 7 |
Ogura | 2015 | Japan | 16 | R0: 16 | Synchronous | 10 | 12 | OS, CR | 7 |
Shibata | 2002 | America | 20 | R0: 15 Not R0: 5 | Metachronous | 20 | 5 | OS, HR | 6 |
Tentes | 2007 | Greece | 62 | RO: 62 | Synchronous | 62 | 62 | OS | 7 |
Gagnière | 2015 | France | 25 | Not R0: 25 | Both (19:6) | 25 |  | OS, HR | 6 |
Song | 2016 | Korea | 40 | No mentioned | Synchronous | 16 | OS, HR | 6 | |
Sahara | 2019 | Germany | 322 | R0: 246 Not R0: 75 | Synchronous | 62 | OS, HR | 7 | |
Nakai | 2017 | Japan | 30 | R0: 18 Not R0: 12 | Synchronous | 30 | OS | 7 | |
Sakamoto | 2020 | Japan | 29 | R0:29 | Synchronous | 29 | OS, HR | 6 | |
Lee, S.H. | 2017 | Korea | 27 | No mentioned | Synchronous | 27 | OS | 7 | |
Bae | 2018 | Korea | 49 | No mentioned | Synchronous | 49 | OS, HR | 6 | |
Ichikawa | 2021 | Japan | 28 | R0: 17 Not R0: 11 | Both (16:12) | 28 | OS, HR | 6 | |
Dumont | 2012 | France | 31 | R0: 31 | Metachronous | 23 | OS | 7 | |
Razik | 2013 | Canada | 48 | R0: 37 Not R0: 11 | Metachronous | 48 | OS, HR | 6 | |
Yamada | 2018 | Japan | 36 | No mentioned | Synchronous | 36 | OS, HR | 6 | |
Sun | 2021 | China | 154 | R0: 145 NotR0: 9 | Synchronous | 47 | OS, HR | 7 |