Community Water Fluoridation and Intelligence: Prospective Study in New Zealand.
نویسندگان
چکیده
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.
منابع مشابه
New Zealand dentists' views on community water fluoridation.
OBJECTIVE To determine whether New Zealand general dental practitioners support community water fluoridation (CWF), and to gauge their opinions on its possible systemic side-effects. METHODS An online survey was conducted in 2010, involving the 1174 general dental practitioners who had email addresses on the Dental Register and were contactable in New Zealand. A total of 465 dentists (39.6%) ...
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In comparison with that of other nations in the British Commonwealth, New Zealand's early and comparatively high adoption of water fluoridation was a distinctive health policy. National concerns about the caries epidemic and the legacies of TR Hunter, F Truby King, HP Pickerill and JP Walsh engendered a spirit of cooperation between the Department of Health, the New Zealand School Dental Servic...
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ورودعنوان ژورنال:
- American journal of public health
دوره 105 1 شماره
صفحات -
تاریخ انتشار 2015