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Geochemical Risk Factors for Mental Functioning, Based on the Ontario Longitudinal Study of Aging (LSA) I. Results from a Preliminary Investigation

Published online by Cambridge University Press:  29 November 2010

W. F. Forbes
Affiliation:
University of Waterloo*
L. M. Hayward
Affiliation:
University of Waterloo*
N. Agwani
Affiliation:
University of Waterloo*

Abstract

Using data from the Ontario Longitudinal Study of Aging (LSA) and data for aluminum and fluoride water concentration in areas where the LSA subjects resided, a preliminary analysis suggests that persons who show no indications of impaired mental functioning are more likely to have resided in areas where the aluminum concentrations (in drinking water) are relatively low and where fluoride concentrations (in drinking water) are relatively high. The difficulties in analyses of this type include the likelihood that many persons who are affected by impaired mental functioning do not respond to surveys, the identification of impaired mental functioning, and obtaining good exposure estimates of fluoride and aluminum drinking water concentrations.

Résumé

A partir de données fournies par l'étude longitudinale ontarienne sur le vieillissement, et d'autres données concernant la concentration en aluminium et en fluor des eaux des régions où habitent les sujets, une analyse préliminaire suggère que les sujets ne présentant aucune indication de mauvais fonctionnement mental avaient tendance à résider dans des zones où la concentration des eaux en aluminium est plutôt basse et où celle des eaux potables en fluor est plutôt élevée. Dans une analyse de ce type, il est probable que beaucoup de personnes affectés par un mauvais fonctionnement mental ne répondent pas aux questionnaires des études. L'identification des caractéristiques d'une santé mentale déficiente et l'obtention d'une juste appréciation de la concentration des eaux en aluminium et en fluor sont également source de difficulté.

Type
Articles
Copyright
Copyright © Canadian Association on Gerontology 1992

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