 Community water fluoridation and intelligence: Prospective study in New ZealandJ.M. Broadbent, W.M. Thomson, S. Ramrakha, T.E. Moffitt, J. Zeng, L.A.F. Page and R. Poulton American Journal of Public Health, 2015, vol. 105, issue 1, 72-76 Abstract: Objectives. This study aimed to clarify the relationship between community water fluoridation (CWF) and IQ. Methods. We conducted a prospective study of a general population sample of those born in Dunedin, New Zealand, between April 1, 1972, and March 30, 1973 (95.4% retention of cohort after 38 years of prospective follow-up). Residence in a CWF area, use of fluoride dentifrice and intake of 0.5-milligram fluoride tablets were assessed in early life (prior to age 5 years); we assessed IQ repeatedly between ages 7 to 13 years and at age 38 years. Results. No clear differences in IQ because of fluoride exposure were noted. These findings held after adjusting for potential confounding variables, including sex, socioeconomic status, breastfeeding, and birth weight (as well as educational attainment for adult IQ outcomes). Conclusions. These findings do not support the assertion that fluoride in the context of CWF programs is neurotoxic. Associations between very high fluoride exposure and low IQ reported in previous studies may have been affected by confounding, particularly by urban or rural status. Date: 2015 Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:aph:ajpbhl:10.2105/ajph.2013.301857_1 Access Statistics for this article American Journal of Public Health is currently edited by Alfredo Morabia More articles in American Journal of Public Health from American Public Health Association |
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