Study | Random sequence generation | Allocation concealment | Patient blinding | Assessor blinding | Incomplete outcome data | Selective outcome reporting |
---|---|---|---|---|---|---|
Chou (2008) [8] | L | U | U | U | L | L |
Kim (2005) [9] | U | U | U | U | H | H |
Habek (2002) [10] | U | U | U | U | U | U |
Shin (2009) [11] | U | U | H | H | U | U |
Xu (2006) [12] | U | U | U | U | U | U |
Xu (2006) [13] | U | U | U | U | U | U |
Guo (2004) [14] | U | U | U | U | U | U |
Hong (2002) [15] | U | U | U | U | U | U |
Yu (2006) [16] | L | L | U | U | U | U |
Ma (2010) [17] | L | L | U | U | U | U |
He (2009) [18] | U | U | U | U | U | U |
Atmaca (2003) [19] | U | U | L | L | U | L |
Zamani (2012) [20] | U | L | L | L | L | L |
Canning (2010) [21] | U | L | L | L | U | L |
Hicks (2004) [22] | U | L | L | L | U | L |
Masumeh (2010) [23] | U | U | U | U | U | U |
Agha-Hosseini (2008) [24] | L | L | L | L | L | L |