Review Article
External Use of Propolis for Oral, Skin, and Genital Diseases: A Systematic Review and Meta-Analysis
Table 4
Risk of bias assessment.
| First author, year | Selection bias | Performance bias | Detection bias | Attrition bias | Reporting bias | Random sequence generation | Allocation concealment | Blinding of participants and personnel | Blinding of outcome assessment | Incomplete outcome data | Selective reporting |
| Ali, 2011 [19] | U | U | H | U | U | U | Atanasovska, 2014 [20] | U | U | L | U | L | U | Capistrano, 2013 [21] | U | U | H | L | L | L | Chen, 2009 [22] | U | U | L | U | L | U | Piredda, 2015 [23] | U | L | H | U | L | L | Gregroy, 2002 [24] | U | U | H | U | U | U | Kucharzewski, 2013 [25] | H | U | H | U | L | U | Ngatu, 2011 [26] | U | U | H | U | U | L | Park, 2013 [27] | U | U | L | U | L | U | Yin, 2013 [28] | U | U | H | U | L | U | Mousavi, 2016 [29] | U | U | H | U | L | L | Vynograd, 2000 [30] | U | U | H | U | L | U |
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H: high risk; L: low risk; U: unclear risk.
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