Table 1 Characteristics of the included studies
Study | Year | Country | Design | Study Period | Group | Cases | Mean age | Sex (M/F) | Surgical techniques | Tumor Site (Right/Left) | TNM stage (I/II/III,IV) |
|---|---|---|---|---|---|---|---|---|---|---|---|
Lee [26] | 2015 | USA | R | 2009–2014 | RATS | 53 | 71.00 | 30/23 | 4 arms | 99/59 | NA |
| Â | Â | Â | Â | Â | VATS | 158 | 72.00 | 56/102 | 2 ports | 34/19 | NA |
Bao [27] | 2016 | China | R | 2014–2015 | RATS | 69 | 58.60 | 26/43 | NA | NA | 65/1/3 |
| Â | Â | Â | Â | Â | VATS | 69 | 59.90 | 22/47 | NA | NA | 59/6/4 |
Oh [28] | 2017 | USA | R | 2011–2015 | RATS | 2951 | 66.90 | 1369/1582 | NA | NA | NA |
| Â | Â | Â | Â | Â | VATS | 2951 | 66.70 | 1373/1578 | NA | NA | NA |
Yang [29] | 2017 | USA | R | 2002–2012 | RATS | 172 | 68.00 | 74/98 | 3 arms or 4 arms | 110/62 | 133/29/10 |
| Â | Â | Â | Â | Â | VATS | 141 | 67.50 | 53/88 | 3 ports | 88/53 | 114/21/6 |
Liu [30] | 2018 | China | R | 2012–2017 | RATS | 134 | 62.14 | 67/67 | NA | 81/53 | 134/0/0 |
| Â | Â | Â | Â | Â | VATS | 213 | 61.30 | 118/95 | NA | 117/96 | 213/0/0 |
Ma [31] | 2019 | China | R | 2016–2017 | RATS | 37 | 61.14 | 26/11 | NA | 23/14 | NA |
| Â | Â | Â | Â | Â | VATS | 43 | 58.36 | 25/18 | NA | 27/16 | NA |
Merritt [32] | 2019 | USA | R | 2014–2018 | RATS | 114 | 64.82 | 46/68 | 4 arms | 61/53 | 71/27/9 |
| Â | Â | Â | Â | Â | VATS | 114 | 62.52 | 49/65 | 3 ports | 68/46 | 79/22/9 |
Li JT [33] | 2019 | China | R | 2013–2016 | RATS | 230 | 55.60 | 76/154 | NA | 152/78 | 230/0/0 |
| Â | Â | Â | Â | Â | VATS | 230 | 56.00 | 80/150 | NA | 162/68 | 230/0/0 |
Li [34] | 2019 | China | R | 2014–2017 | RATS | 36 | 57.20 | 17/19 | NA | 23/13 | 0/16/20 |
| Â | Â | Â | Â | Â | VATS | 85 | 59.70 | 38/47 | NA | 51/34 | 0/36/49 |
Tong [35] | 2020 | China | R | 2016–2018 | RATS | 33 | 61.97 | 19/14 | 2 arms | 0/33 | 24/6/3 |
| Â | Â | Â | Â | Â | VATS | 41 | 62.24 | 27/14 | 3 ports | 0/41 | 28/8/5 |
Huang [36] | 2020 | China | R | 2019–2019 | RATS | 23 | 53.98 | 10/13 | 3 arms | 15/8 | 19/2/2 |
| Â | Â | Â | Â | Â | VATS | 30 | 56.39 | 17/13 | 3 ports | 19/11 | 22/6/2 |
Tian [37] | 2020 | China | R | 2015–2018 | RATS | 283 | 57.90 | 128/155 | 3 arms | 283/0 | 226/45/12 |
| Â | Â | Â | Â | Â | VATS | 296 | 58.76 | 118/178 | 4 ports | 296/0 | 240/35/21 |
Veluswamy [38] | 2020 | USA | R | 2008–2013 | RATS | 338 | 73.00 | 148/190 | NA | NA | 241/62/35 |
| Â | Â | Â | Â | Â | VATS | 1230 | 72.00 | 542/688 | NA | NA | 918/214/98 |
Zhou [39] | 2020 | China | R | 2011–2018 | RATS | 50 | 54.70 | 15/35 | 4 arms | 27/23 | 50/0/0 |
| Â | Â | Â | Â | Â | VATS | 80 | 57.70 | 26/54 | 4 ports | 31/49 | 80/0/0 |
Haruki [40] | 2020 | Japan | R | 2011–2018 | RATS | 49 | 70.00 | 21/28 | 4 arms | 32/17 | 43/3/3 |
| Â | Â | Â | Â | Â | VATS | 49 | 68.00 | 24/25 | 3 ports | 26/23 | 42/1/6 |
Zhang [41] | 2020 | China | R | 2015–2019 | RATS | 257 | 53.53 | 84/173 | 4 arms | 127/130 | NA |
| Â | Â | Â | Â | Â | VATS | 257 | 52.21 | 89/168 | NA | 124/133 | NA |
Qiu [42] | 2020 | China | R | 2012–2017 | RATS | 40 | 61.40 | 36/4 | 3 arms | 24/16 | NA |
| Â | Â | Â | Â | Â | VATS | 38 | 61.70 | 34/4 | 2 ports or 3 ports | 17/21 | NA |
Kneuertz [43] | 2020 | USA | R | 2012–2017 | RATS | 245 | 65.30 | 47/53 | 4 arms | 61/40 | 86/10/5 |
| Â | Â | Â | Â | Â | VATS | 118 | 64.60 | 45/55 | 4 ports | 58/42 | 90/6/4 |