Abstract
To assess the association between fluoride exposure and children’s behavioural outcomes, we recruited 325 resident school-age children (7–13 years old) lived in Tongxu County of Henan Province in China. We measured urinary fluoride (UF) concentrations using the ion-selective electrode method. Children’s behavioural outcomes were assessed by Conners’ Parent Rating Scale-Revised, including conduct problems, learning problems, psychosomatic problems, impulsive-hyperactive, anxiety, and ADHD index. It turned out that each 1.0 mg/L increment in UF concentration corresponded with an elevation in the psychosomatic problem score of 4.01 (95% CI: 2.74, 5.28) and a 97% (OR = 1.97, 95% CI: 1.19, 3.27) increase in the prevalence of psychosomatic problems after adjusting for potential influencing factors. The sensitivity analysis results were consistent with those observed in our preliminary analysis. Our study suggests that fluoride exposure is positively related to the behavioural problem in school-age children, psychosomatic problem in particular.
Funding
This work was supported by the National Natural Science Foundation of China [81673116,81972981]; Scientific and Technological Project of Henan Province.
*Original abstract online at https://www.tandfonline.com/doi/abs/10.1080/09603123.2020.1747601?journalCode=cije20
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