A study led by scientists at the Center for Infection and Immunity at Columbia University’s Mailman School of Public Health has found that fever during pregnancy, in particular during the second trimester, increased the likelihood of autism spectrum disorder by 40%.
Researchers followed 95,754 children born between 1999 and 2009. These included 583 cases of ASD as identified in Norway through the Autism Birth Cohort Study. ASD risk increased by 34% when mothers reported fever at any point in pregnancy, 40% when fever was experienced in the second trimester.
Researchers also noted that mothers who took ibuprofen during pregnancy did not have children with ASD, but that the numbers involved in observing this were too small to provide a definite indication.
Read more in this Press Release by Columbia University: