Table 1 Baseline characteristics of included studies
Author | Year | Country | Study date | Patients | Age (year) | Study type | Sample size | Language | ROBINS-I grade | GRADEpro grade | |
|---|---|---|---|---|---|---|---|---|---|---|---|
ESD | Surgery | ||||||||||
Kishida Y | 2022 | Japan | 2012–2015 | 417 |  ≥ 75 | retrospective | 114 | 303 | English | Low Risk | Low |
Park CH | 2014 | Korea | 2007–2013 | 264 |  ≥ 70 | retrospective | 132 | 132 | English | Low Risk | Very low |
Etoh T | 2005 | Japan | 1985–1999 | 93 |  ≥ 80 | retrospective | 49 | 44 | English | Moderate Risk | Low |
Kang S | 2023 | Korea | 2005–2015 | 294 |  ≥ 75 | retrospective | 59 | 235 | English | Low Risk | Low |
Miyahara K | 2022 | Japan | 2006–2016 | 535 |  ≥ 77 | retrospective | 365 | 170 | English | Low Risk | Low |
Jin Z | 2021 | China | 2013–2018 | 487 |  ≥ 60 | retrospective | 148 | 339 | Chinese | Moderate Risk | Very low |
Wen-Jin L | 2020 | China | 2014–2016 | 140 |  ≥ 60 | retrospective | 78 | 62 | Chinese | Moderate Risk | Very low |
Jiang T | 2019 | China | 2013–2016 | 104 |  ≥ 60 | retrospective | 72 | 32 | Chinese | Moderate Risk | Very low |