Table 1.
Risk of Bias of Included Studies*
| (Citation) Study (Year) | Selection Bias | Patient Blinding | Assessor Blinding | Incomplete Outcome Data | Selective Outcome Reporting | |
|---|---|---|---|---|---|---|
| Random Sequence Generation | Allocation Concealment | |||||
| [18] Oleson (1993) | L | U | L | U | L | L |
| [19] Kim (2002) | H | H | U | U | L | L |
| [20] Kim (2004) | U | U | U | U | U | L |
| [21] Lee (2011) | H | H | U | U | L | L |
| [11] Abdollahi Fard (2013) | L | U | L | U | L | L |
| [22] Baghdassarians (2015) | U | U | U | U | U | U |
| [23] Nalini (2015) | U | U | U | U | U | L |
| [24] Prema (2017) | U | U | U | U | U | U |
| [12] Shafaie (2018) | L | U | L | H | L | L |
*Domains of Quality Assessment Based on the Cochrane Tools for Assessing Risk of Bias
Abbreviations; L low Risk of Bias, H High Risk of Bias, U Unclear (Uncertain) Risk of Bias