Fig. 2From: RETRACTED ARTICLE: Fluoride exposure and intelligence in school-age children: evidence from different windows of exposure susceptibilityAssociation between fluoride exposure and children’s IQ scores of all childrena. a Adjusted for age, gender, gestational weeks, maternal education level, paternal education level and children’s BMI. The estimated values and their corresponding 95% CI were respectively represented by the solid line and the dotted lines. A negative association was observed between children’s IQ scores and concentrations of CUF at ≥ 1.7 mg/L (P < 0.05)Back to article page