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SciTrust Score: Fluoride and Offspring IQ

Review and rate your confidence in one of the key studies driving the water fluoridation debate

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The topic of water fluoridation is subject to ongoing debate in the area of public health.  One of the key studies that is driving this debate is: 

Green R, Lanphear B, Hornung R, et al. Association Between Maternal Fluoride Exposure During Pregnancy and IQ Scores in Offspring in Canada. JAMA Pediatr. 2019;173(10):940–948. doi:10.1001/jamapediatrics.2019.1729

How confident is the scientific community in relying upon this study to support decision making on water fluoridation?  Is this study a good study and worthy of supporting decision making on water fluoridation?  Please review and score this paper.  This is the first case of a series we will be running on scoring trust in scientific papers, so we'd love your involvement. 
Public health Risk assessment Toxicology

SciPoll 688 Feed

  • Result 6621 user-55282

    11/25/2024 14:13

    No.

  • Result 6620 user-55282

    11/25/2024 14:13

    No. Need more work to control for confounders 

  • Result 6619 user-55282

    11/25/2024 14:13

    Rating 2
    Though the statistics was well conducted, but the confounders cannot support use in decision making

  • Result 6618 user-55282

    11/25/2024 14:09

    1. Factors affecting IQ like socioeconomic background, parentage, home environment, exposure results cannot be sufficiently controlled for in this kind of research and can make the results not to be generalizable
    2. The Wechsler score is unreliable at ages 3-7
    3. Mean values of the fluoride level did not exceed the optimal level
    Conclusion: There are many confounders that were not sufficiently controlled for. The findings of this study cannot be attributed only to the intake of fluoride. The tool used in determining the IQ levels for the children is not reliable in itself. Hence, the results are questionable
    Conclusions cannot be drawn with certainty based on this study alone