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Two previously published studies of term newborn encephalopathy showed that maternal thyroid disease to be a risk factor. From these studies we identified 13 case and three control mothers with thyroid disease and investigated them further. The majority of affected case mothers had idiopathic or autoimmune hypothyroidism. Compared with control mothers, case mothers had fewer thyroid function tests in pregnancy, were more likely to remain on the same dose of medication throughout pregnancy and to have experienced other pregnancy complications. The association between maternal thyroid disease and encephalopathy may be the result of a series of different causal pathways, some of which are suggested by our data.

Type

Journal article

Journal

BJOG

Publication Date

06/2000

Volume

107

Pages

798 - 801

Keywords

Brain Diseases, Female, Humans, Hypothyroidism, Infant, Newborn, Infant, Newborn, Diseases, Pregnancy, Pregnancy Complications, Prospective Studies, Risk Factors