[Prevalence of vitamin B-12 deficiency in older adults].

Background: There is a correlation between aging and the decrease of plasma levels of vitamin B-12.

Aim: To determine the prevalence of vitamin B-12 and folate deficiency and its hematological impact among older adults (AM).

Material And Methods: Cross-sectional study, in 1028 subjects aged 65 to 87years, living in community and evaluated between 2005 and 2008.