Water fluoridation and hypothyroidism results of this study need much more cautious interpretation

 

 

The biggest problem with this paper, however, is in the interpretation which puts far too much weight on such weak evidence. The approach used is notoriously unreliable as a way of identifying independent associations and the lack of a clearly established prior hypothesis make it very unconvincing as evidence of a causal relationship. Given the other problems we have identified, this loose interpretation is a very serious concern. Such speculation is likely to result in unfounded public anxiety about a public health intervention which currently protects the health of children’s teeth in many parts of the world.

Water fluoridation and hypothyroidism: results of this study need much more cautious interpretation J Epidemiol Community Health. 2015 Jul; 69(7): 617–618.

Newton NN, Young N, Morris J

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