Lead exposure biomarkers and mini-mental status exam scores in older men

RO Wright*, SW Tsaih, J Schwartz, A Spiro, K McDonald, ST Weiss, H Hu

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

94 Citations (Scopus)

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 languageEnglish
Pages (from-to)713-718
Number of pages6
JournalEpidemiology
Volume14
Issue number6
DOIs
Publication statusPublished - 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

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