Table 1 Basic characteristics and demographics of the included studies
First Author | Country | Year of Publication | Study year | Retrospective/ Prospective | Study Type | Patients | Lobe | Seg | TNM8th Stage | NOS score |
|---|---|---|---|---|---|---|---|---|---|---|
Al-Ameri [17] | Sweden | 2019 | 2016–2018 | Retrospective | No | 333 | 122/211 | 0/0 | Stage I-IV | 7 |
Bourdages-Pageau [15] | Canada | 2019 | 2014–2017 | Retrospective | PSM | 722 | 247/247 | 0/0 | T1N0M0 | 8 |
Chang [19] | China Taiwan | 2016 | 2012–2014 | Retrospective | No | 121 | 26/55 | 3/2 | T1-2N0M0 | 7 |
Chung [7] | South Korea | 2015 | 2013–2014 | Retrospective | No | 150 | 90/60 | 0/0 | T1-2N0M0 | 7 |
Dai [20] | China | 2016 | 2013–2015 | Retrospective | PSM | 143 | 63/63 | 0/0 | T1-3N2M0 | 7 |
French [21] | Canada | 2016 | 2014–2015 | Retrospective | PSM | 100 | 40/42 | 10/8 | T1N0M0 | 7 |
Han [22] | South Korea | 2016 | 2006–2015 | Retrospective | No | 439 | 167/212 | 0/0/ | Stage I or II | 7 |
Heo [23] | South Korea | 2017 | 2012–2015 | Retrospective | PSM | 104 | 32/32 | 0/0 | T1-2N0-2M0 | 7 |
Hirai [24] | Japan | 2019 | 2012–2019 | Prospective | No | 212 | 142/70 | 0/0 | T1N0M0 | 7 |
Li [25] | China | 2019 | 2015–2017 | Retrospective | PSM | 492 | 215/232 | 31/14 | NG | 8 |
Lin [14] | China | 2016 | 2013–2014 | Retrospective | No | 67 | 21/46 | 0/0 | NG | 7 |
Liu [9] | China Taiwan | 2016 | 2005–2014 | Retrospective | No | 442 | 100/342 | 49/47 | NG | 7 |
Liu [26] | China | 2019 | 2015–2016 | Prospective | No | 328 | 166/162 | 0/0 | T1N0M0 | 8 |
McElnay [8] | UK | 2014 | 2012–2013 | Retrospective | No | 110 | 15/95 | 0/0 | NG | 7 |
Mu [16] | China | 2015 | 2014–2015 | Prospective | PSM | 405 | 28/21 | 8/8 | Stage I-III | 8 |
Perna [27] | Spain | 2016 | 2015–2016 | Prospective | RCT | 131 | 51/55 | 0/0 | T1-2N0M0 | 8 |
Shen [28] | China | 2016 | 2013–2014 | Retrospective | PSM | 396 | 100/100 | 0/0 | T1-3N0M0 | 7 |
Song [29] | South Korea | 2017 | 2011–2016 | Retrospective | PSM | 73 | 26/26 | 0/0 | Stage I-III | 7 |
Zhao [30] | China | 2019 | 2013–2015 | Retrospective | No | 129 | 73/56 | 0/0 | Stage I | 7 |
Zhu [31] | China | 2015 | 2014 Aug-2014 Oct | Retrospective | No | 82 | 33/49 | 0/0 | Stage I or II | 7 |