From: The association between diet quality, dietary patterns and depression in adults: a systematic review
Level of evidence | Criteria for inclusion in best evidence synthesis |
---|---|
Strong evidence | Generally consistent findings in: |
Multiple high-quality cohort studies | |
Moderate evidence | Generally consistent findings in: |
One high-quality cohort study and >2 high quality case-control studies | |
Limited evidence | Generally consistent findings in: |
Single cohort study | |
One or two case-control studies or | |
Multiple cross-sectional studies | |
Conflicting evidence | Inconsistent findings in <75% of the trials |
No evidence | No studies could be found |