Serum Vitamin B₁₂, C and Folate Concentrations in the New Mexico Elder Health Survey: Correlations with Cognitive and Affective Functions

Hispanics, even after adjustments for gender, age, vitamin supplementation, vitamin content of dietary foods, education and household income, had lower serum concentrations of B12, C and folate than NHW. The most significant associations observed were those between serum folate and various measures of cognitive function, even after adjusting for presence of depression.