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Adapted typology of study designs and quality
| Study design | Study design quality score |
|---|---|
| Repeat cross‐sectional | Weak |
| Repeat cross‐sectional with control | Moderate |
| Repeat cross‐sectional with cohort subgroup | Moderate |
| Cohort | Moderate |
| Repeat cross‐sectional with control and controlled cohort subgroup | Strong |
| Controlled before–after (same participants) | Strong |
| Controlled trial | Strong |
