Table 2 Jadad score of clinical trials

Hézode et al. (2015)

Method of randomization was mentioned and it was appropriate (2)

Method of blinding was identical placebo (2)

There was a description of withdraws and drop outs (1)

5

Dore et al. (2015)

Method of randomization was mentioned and it was appropriate (2)

Method of blinding was identical placebo (2)

There was a description of withdraws and drop outs (1)

5

Suzuki et al. (2014)

Method of randomization was mentioned and it was appropriate (2)

Method of blinding was identical placebo (2)

There was a description of withdraws and drop outs (1)

5

Izumi et al. (2014)

Method of randomization was mentioned and it was appropriate (2)

Method of blinding was identical placebo (2)

There was a description of withdraws and drop outs (1)

5

Pol et al. (2012)

Method of randomization was mentioned but not described (1)

Method of blinding was identical placebo (2)

There was a description of withdraws and drop outs (1)

4

Ratziu et al. (2012)

Method of randomization was mentioned but not described (1)

Method of blinding was identical placebo (2)

There was a description of withdraws and drop outs (1)

4