Table 3. The HR value and 95%CI of OS and DFS in each study.
| Study | Year | OS | DFS | Survival results | ||
|---|---|---|---|---|---|---|
| HR | 95%CI | HR | 95%CI | |||
| Orr | 2012 | 2.28 | 1.16-4.49 | NA | NA | poor |
| Yang | 2013 | 2.55 | 1.30-4.98 | NA | NA | poor |
| Liu | 2014 | 3.16 | 2.12-4.74 | NA | NA | poor |
| Chen | 2015 | 2.22 | 1.19-4.17 | NA | NA | poor |
| Dong | 2015 | 1.45 | 1.08-1.93 | 1.36 | 1.02-1.81 | poor |
| Strand | 2015 | NA | NA | 0.62 | 0.44-0.87 | well |
| Tsai | 2015 | NA | NA | 1.90 | 1.20-3.02 | poor |
| Zhang | 2015 | 2.03 | 1.22-3.46 | NA | NA | poor |
| Zhang | 2016 | 2.02 | 0.93-7.16 | 2.56 | 1.06-6.24 | poor |