NDNS65+: Prevalence of Vitamin B12 Deficiency
Plasma vitamin B12 <118 pmol/l (154pg/ml)
Macrocytosis (MCV >101fl) was seen in: 2% of free-living elderly and 3% of
elderly in institutions.
Macrocytosis can be due to vit B12/folate deficiency or alcohol excess
Only a minority of those with vitamin B12 deficiency also had macrocytosis