Studies | Adequate sequence generation | Allocation concealment | Blinding of outcome assessors | Incomplete outcome data | Intention-to-treat analysis | Free of selective reporting | Free of other bias |
---|---|---|---|---|---|---|---|
Johansson et al., 2008[17] | U | U | U | N | Y | N | N |
Lee et al., 2004[18] | N | U | U | N | Y | N | N |
Chow et al., 2012[19] | U | U | U | Y | N | U | Y |
Griffith et al., 2008[20] | Y | U | U | Y | N | Y | U |
Hwang et al., 2013[21] | Y | U | U | Y | Y | Y | Y |
Liu et al., 2008[22] | U | U | U | U | U | N | N |
Manzaneque et al., 2009[23] | U | U | U | Y | N | Y | N |