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Effects of Mothers' Autoimmune Disease During Pregnancy on Learning Disabilities and Hand Preference in Their Children
Gail Ross, PhD;
Lisa Sammaritano, MD;
Ruth Nass, MD;
Michael Lockshin, MD
Arch Pediatr Adolesc Med. 2003;157:397-402.
Objectives To determine whether children (and particularly sons) of women with systemic lupus erythematosus (SLE) during pregnancy are more likely to have learning disabilities (LD) and be non–right-handed, and if maternal disease variables (ie, presence of maternal antibodies, disease activity level, and use of corticosteroids) predict the prevalence of LD in offspring.
Design Case-controlled study with subjects matched by age and sex.
Participants We studied 58 children whose mothers had SLE during pregnancy and 58 children of healthy mothers.
Measures Data collected included maternal disease variables in women with SLE during their pregnancies. All children took a standardized intelligence test (Wechsler Intelligence Scale for Children–III) and completed a modified version of the Edinburgh Hand Preference Questionnaire. They also took standardized tests of reading, arithmetic, and writing achievement. Learning disability was defined as having an academic achievement score of at least 1.5 SDs below the Full-Scale IQ.
Results Sons of women with SLE were significantly more likely to have LD than daughters of women with SLE or children of either sex in the control group. Maternal SLE was not associated with non–right-handedness in sons or daughters. The presence of anti-Ro/La antibodies and disease activity (flare) in mothers during pregnancy were significantly related to higher prevalence of LD in offspring.
Conclusions Autoimmune disease in women during pregnancy is associated with an increased risk for LD in their sons. Maternal antibodies, particularly anti-Ro/La, likely affect the fetal brain of male offspring and result in later learning problems. These findings should promote greater awareness of the risk for LD in sons of women with autoimmune disease and the possible need for early educational intervention in those children.
From the Department of Pediatrics, New York Presbyterian Hospital (Dr Ross), the Department of Rheumatology, Hospital for Special Surgery, Weill-Cornell Medical College (Drs Sammaritano and Lockshin), and the Department of Neurology, New York University Medical Center (Dr Nass), New York.
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