Table 3 Quality assessment of included studies
Included in research | Random Allocation (selection bias) | Allocation concealment (selection bias) | Blinding of participants and personal (implemention bias) | Blinding of outcome assessment (measurement bias) | Selective reporting (reporting bias) | Incomplete outcome data (follow-up bias) | Other bias | Quality level |
|---|---|---|---|---|---|---|---|---|
Hedayatfar et.al | H | U | U | U | L | L | L | B |
Parsipour et.al | H | U | U | U | L | L | L | B |
Aerts et.al | H | U | U | U | L | H | L | B |
Karimian et.al | H | U | U | U | L | L | L | B |
Alio et.al | H | U | U | U | L | L | L | B |
Shin et.al. | H | U | U | U | L | L | L | B |
Torri et.al | H | U | U | U | L | L | L | B |
Peris-Martinez et.al | H | U | U | U | L | L | L | B |
Kohnen et.al | H | U | U | U | L | L | L | B |
Tahzib et.al | H | U | U | U | L | L | L | B |
Collet et.al | H | L | L | L | L | L | L | A |