Table 1.
Basic characteristics and quality evaluation of included studies
| First author | Years | Country | Study type | Obstruction site | Samples SEMS vs ES | Age, mean (range or SD) SEMS vs ES |
Gender, M/F SEMS vs ES |
NOS/Jadad |
|---|---|---|---|---|---|---|---|---|
| Alcantara | 2011 | Spain | RCT | Left colon | 15 vs 13 | 71.9 (8.96) vs 71.15 (9) | 5/10 vs 7/6 | 3 |
| Amelung | 2016 | The Netherlands | RS | Left colon | 51 vs 37 | 71.8 (13.1) vs 66.63 (13.2) | 25/26 vs 14/23 | 7 |
| Amelung | 2019 | The Netherlands | RS | Left colon | 222 vs 444 | 72 (64–80) vs 73 (63–79) | 124/98 vs 253/191 | 8 |
| Arezzo | 2017 | Italy | RCT | Left colorectal | 56 vs 59 | 72 (43–90) vs 71 (44–94) | 28/28 vs 32/27 | 3 |
| Chen | 2019 | China | RS | Colorectal | 38 vs 90 | 63.21 (13.55) vs 61.58 (14.84) | 23/15 vs 59/31 | 7 |
| Gorissen | 2013 | UK | PS | Left colon | 62 vs 43 | 70.6 (28–95) vs 72.0 (36–96) | 36/26 vs 20/23 | 8 |
| Haraguchi | 2016 | Japan | RS | Colon | 22 vs 22 | 67 (11.0) vs 68 (10.0) | 12/10 vs 15/7 | 6 |
| Ho | 2017 | China | RS | Left colon | 62 vs 40 | 70.2 (11.7) vs 70.9 (11.5) | 49/13 vs 30/10 | 6 |
| Ji | 2017 | South Korean | RS | Right colon | 14 vs 25 | 61.5 (14.4) vs 66.9 (12.4) | 4/10 vs 11/14 | 6 |
| Kang | 2018 | South Korean | RS | Left colorectal | 226 vs 109 | 64.4 (12.8) vs 64.1 (14.8) | 141/85 vs 70/39 | 8 |
| Kavanagh | 2013 | Ireland | RS | Colon | 23 vs 26 | 69.9 (46–91) vs 69.7 (49–89) | 13/10 vs 16/10 | 7 |
| Kim | 2013 | South Korean | RS | Left colon | 25 vs 70 | 61.6 (46–80) vs 61.7 (23–90) | 15/10 vs 47/23 | 6 |
| Kim | 2015 | South Korean | RS | Colorectal | 27 vs 29 | 64.6 (57.8–71.5) vs 70.7 (65.8–75.6) | 18/9 vs 16/13 | 7 |
| Kim | 2017 | South Korean | RS | Left colon | 158 vs 56 | 63.9 (12.5) vs 64.5 (13.5) | 79/79 vs 30/26 | 6 |
| Kwak | 2016 | South Korean | RS | Left colorectal | 42 VS 42 | Not available | 28/14 vs 26/16 | 8 |
| Oistamo | 2016 | Sweden | RS | Left colon | 20 vs 80 | Not available | Not available | 7 |
| Park | 2018 | South Korean | RS | Left colorectal | 94 vs 17 | 64.0 (12.1) vs 69.0 (11.5) | 52/42 vs 9/8 | 6 |
| Rodrigues | 2019 | Portugal | RS | Left colorectal | 48 vs 46 | 67 (58–76) vs 75 (60–83) | 25/23 vs 25/21 | 6 |
| Sabbagh | 2013 | France | RS | Left colon | 48 vs 39 | 69.73 (13.31) vs 74.89 (13.61) | 29/19 vs 20/19 | 6 |
| Sloothaak | 2014 | The Netherlands | RCT | Colon | 26 vs 32 | 67 (60–67) vs 70 (61–79) | 12/14 vs 18/14 | 3 |
| Veld | 2019 | The Netherlands | RS | Left colon | 121 vs 121 | 70.1 (12.1) vs 69.8 (11.0) | 73/48 vs 72/29 | 8 |
| Yang | 2019 | South Korean | RS | Colon | 182 vs 71 | 65.2 (12.4) vs 63.9 (14.9) | 107/75 vs 42/29 | 6 |
NOS for PS and RS, Jadad for RCT
RS retrospective studies, RCT randomized controlled trials, PS prospective studies, SEMS self-expanding metal stents, ES emergency surgery