Table 3 The summary of review authors’ judgments about each risk of bias item for included studies
Study | Random sequence generation | Allocation concealment | Blinding | Incomplete outcome data | Selective reporting | Other bias |
|---|---|---|---|---|---|---|
Bashiri et al. [4] | L | U | H | L | L | L |
Halima et al. [16] | L | U | U | U | L | U |
Kondo et al. [23] | L | U | L | L | L | U |
Mahmoodi et al. [27] | U | H | U | U | L | U |
Panetta et al. [33] | L | L | L | L | L | U |
Khezri et al. (2018) [22] | L | L | H | L | L | L |
Ebrahimi-Mamaghani et al. [12] | L | U | H | L | L | U |
Mohammadpourhodki et al. (2019) [28] | L | U | H | L | L | U |
Kausar et al. (2019) [20] | L | L | L | L | L | L |