Schaefer 2006.
Methods |
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Participants |
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Interventions | Treatment group 1
Treatment group 2
Co‐interventions
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Outcomes |
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Notes |
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Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Unclear risk | Insufficient information to permit judgement |
Allocation concealment (selection bias) | Unclear risk | Insufficient information to permit judgement |
Blinding of participants and personnel (performance bias) All outcomes | High risk | Open‐label study |
Blinding of outcome assessment (detection bias) All outcomes | Low risk | Outcomes unlikely to be influenced by lack of blinding |
Incomplete outcome data (attrition bias) All outcomes | Low risk | All patients accounted for |
Selective reporting (reporting bias) | Low risk | Prespecified outcomes mentioned |
Other bias | Unclear risk | Insufficient information to permit judgement |