Abstract
Background: Lead is neurotoxic; yet, whether cognitive decline in older persons is associated with lead exposure is unknown. We studied whether lead exposure biomarkers are associated with cognitive test scores, as well as the modifying effects of age on the lead-cognition relationship.
Methods: Lead exposure biomarkers and Mini-Mental Status Exam (MMSE) scores were measured among subjects in the Normative Aging Study. Multiple linear and logistic regression analyses were performed to examine the cross-sectional association of these 2 variables.
Results: We found an odds ratio (OR) of 2.1 for MMSE
Conclusions: Increased levels of lead in bone and blood are inversely associated with cognitive performance among older men. Lead exposure might accelerate age-associated cognitive decline.
Original language | English |
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Pages (from-to) | 713-718 |
Number of pages | 6 |
Journal | Epidemiology |
Volume | 14 |
Issue number | 6 |
DOIs | |
Publication status | Published - Nov-2003 |
Keywords
- lead
- cognition
- aging
- Mini-Mental Status Examination
- BLOOD LEAD
- IN-VIVO
- ALZHEIMERS-DISEASE
- BONE LEAD
- COGNITIVE FUNCTION
- OXIDATIVE STRESS
- CHRONIC TOXICITY
- INORGANIC LEAD
- ELDERLY MEN
- POPULATION