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Table 1 Risk of bias (quality) assessment: Cochrane risk assessment tool [22]

From: A systematic review, and meta-analyses, of the impact of health-related claims on dietary choices

Bias domain Source of bias Health-related claims studies
Selection bias a. Random sequence generation Were participants/products randomised to the health-related claim condition?
b. Allocation concealment Were participants aware of claim allocation?
Performance bias Blinding of participants and personnel Were participants blinded to the aims of the study? (e.g. the impact of health-related claims on purchasing/consumption)
Detection bias Blinding of outcome assessment Were participants aware of the study outcomes?
Other bias Anything else How were participants recruited?
Were participants/products representative of the target population?
How was the study funded?
Were there any conflicts of interest reported?