Table 3 ROB-1 Cochrane evaluation
DOMAIN | SELECTION BIAS | PERFORMANCE BIAS | DETECTION BIAS | ATTRITION BIAS | REPORTING BIAS | OTHER BIAS | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ITEM | Sequence generation | Allocation concealment | Blinding of participants and personnel | Blinding of outcome assessment | Incomplete outcome data | Selective outcome reporting | Other sources of bias | |||||||
Author, year | Evaluation | Valuation support | Evaluation | Valuation support | Evaluation | Valuation support | Evaluation | Valuation support | Evaluation | Valuation support | Evaluation | Valuation support | Evaluation | Valuation support |
Kayalar 201 6[21] | Low risk | Randomization was performed using computer-generated tables. | Low risk | Allocation was concealed using sequentially numbered opaque and sealed envelopes. | Unclear risk | Although blinding was probably not possible, author does not mention information on this topic anywhere | Unclear risk | Author does not mention information on this topic anywhere | Unclear risk | No serious adverse effects were observed but no information about participant continuation or losses was reported | Low risk | Principal study outcomes were found in results section (skeletal expansion, dental expansion, periodontal side effects (dental tipping, root resorption, and buccal bone resorption) | Low risk | The study appears to be free of other sources of bias |