2. Methods

17. Clearly stated the total number of participants and the numbers in each group if there are groups?
18. Clearly stated the response rate?
19. Described the sample in terms of age, sex breakdown, social class or other relevant properties?
20. Clearly stated how the sample was obtained in such a way as to be able to judge its representativeness?
21. Clearly listed the measures used, indicating where possible indices of validity and reliability or giving a citation where these can be found?
22. Described the intervention(s) if appropriate and any control conditions if present?
23. Explicitly described any complex or unusual statistical methods?

Data source and permissions

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Design

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Participants

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Intervention

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Variables

Risk factors

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Comorbidity

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Other variables

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Analysis

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Ethical considerations

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