RCT Study = 2
|
Random sequence generation
|
Allocation concealment
|
Blinding of participants and personnel
|
Blinding of outcome assessment
|
Incomplete outcome data
|
Selective reporting
|
Other bias
|
---|
Moon 2018
|
Low
|
Low
|
Low
|
Low
|
Low
|
Low
|
Unclear
|
Spaans 2015
|
High
|
High
|
Unclear
|
Low
|
Low
|
Low
|
Unclear
|
- Abbreviations: RCT randomized controlled trials
- The RCTs' methodological quality and basis were assessed as follows: randomization, allocation concealment, blind method, selective reporting, group similarity at baseline, incomplete outcome data, compliance, the timing of outcome assessments, and intention-to-treat analysis