Wednesday, February 24, 2016

Study finds no increased risk of autism, ADHD with prenatal antidepressant exposure

http://www.eurekalert.org/pub_releases/2016-01/mgh-sfn010516.php

Public Release: 5-Jan-2016
Study finds no increased risk of autism, ADHD with prenatal antidepressant exposure
Massachusetts General Hospital

An analysis of medical records data from three Massachusetts health care systems finds no evidence that prenatal exposure to antidepressants increases the risk for autism and related disorders or for attention-deficit hyperactivity disorder (ADHD). In their report being published online in Translational Psychiatry, the Massachusetts General Hospital (MGH)-based research team finds evidence that any increased incidence of autism or ADHD found in previous studies was probably associated with the severity of the mother's depression - a known risk factor for several neuropsychiatric disorders - and not from antidepressant exposure during pregnancy.

"The fact that we now have found, in two large case-control studies, no increase in the risk for autism with antidepressant use itself should be very reassuring," says Roy Perlis, MD, MSc, MGH Department of Psychiatry, senior author of the current report and of an earlier study published in 2014. "Some of the studies that have suggested an association did not account for key differences between mothers who take antidepressants and those who don't, in particular that those taking antidepressants are more likely to have more severe illness."

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While the incidence of both autism and ADHD was increased in the children of women who had taken antidepressants prior to becoming pregnant, antidepressant exposure during pregnancy did not increase the incidence of either condition. Maternal psychotherapy, which like prepregnancy antidepressant use indicates more serious depression, did significantly increase the risk of either autism or ADHD, supporting the hypothesis that studies finding an increased incidence actually reflected the risk conferred by maternal depression itself.

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