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