Table 2 Risk of bias assessment included in the network meta-analysis
No. | Reference | Randomization procedure | Allocation concealment | Blinding of personnel and participants | Blinding of outcome assessment | Incomplete outcome assessment | Selective reporting |
|---|---|---|---|---|---|---|---|
1 | Yamada et al. [17] | L | L | H | L | L | L |
2 | Oe et al. [18] | L | L | H | U | U | L |
3 | McGavock et al. [27] | L | L | L | L | U | L |
4 | Naka et al. [28] | L | L | H | L | U | L |
5 | McGuireet al. [29] | U | U | L | U | H | L |
6 | Pala et al. [30] | U | U | U | U | L | L |
7 | van der Meer et al. [19] | L | L | L | U | L | L |
8 | Giles et al. [31] | U | U | L | U | U | L |
9 | Pan et al. [32] | U | U | U | L | L | L |
10 | Sutton et al. [33] | U | U | H | L | U | L |
11 | Lee et al. [14] | U | U | H | L | H | L |