Vitamin D, cognition, and dementia: a systematic review and meta-analysis.
Authors not in graph record · peer-reviewed
Study design and participants
- Design
- systematic review / meta-analysis, mostly observational
- Sample size
- 25
- Population
- older adults
- Intervention and protocol
- not applicable — observational association
Results
- Vitamin D → cognition: positive; effect size not reported.
Limitations, bias, and funding
Risk of bias: moderate
Funding: not reported
- Recorded risk of bias: moderate.