What The Study Did: This observational study included 1 million children in the United Kingdom and looked at the association between children who are younger than their classmates and the likelihood of depression, attention-deficit/hyperactivity disorder and intellectual disability.
To access the embargoed study: Visit our For The Media website at this link https://media.jamanetwork.com/
Authors: Jeremy P. Brown, M.Sc., of the London School of Hygiene and Tropical Medicine, is the corresponding author.
(doi:10.1001/jamapediatrics.2019.3194)
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