Serum 25-hydroxyvitamin D concentrations, sleep characteristics and the risk of incident dementia

Key Points

• Incident dementia was significantly correlated with lower serum 25-hydroxyvitamin D levels, suggesting a critical relationship.
• A 3-year follow-up revealed that individuals with deficient vitamin D levels had a 50% higher risk of developing dementia.
• The analysis utilized serum measurements and cognitive assessments across diverse sleep quality variables, focusing on longitudinal data.
• These findings highlight the need for further research to explore vitamin D supplementation as a preventative strategy for dementia.