Subclinical thyroid deficiency linked to poorer outcomes

Newborn screening of thyroid deficiency may be missing babies who would benefit from treatment, according to research from NSW.

The landmark study of over a half a million children looked at the developmental and educational outcomes of babies whose thyroid stimulating hormone (TSH) levels were higher than normal on screening, but below the screening cut-off point at which they would be treated with thyroxine for congenital hypothyroidism.