Maternal metabolic conditions and risk for autism and other neurodevelopmental disorders
Paula Krakowiak1, Cheryl K Walker, Andrew A Bremer
1Division of Epidemiology, Department of Public Health Sciences, University of California, Davis, California, USA. pkrakowiak@ucdavis.edu
Insights
Metabolic conditions during pregnancy, including diabetes, hypertension, and obesity, are linked to increased risks of autism spectrum disorder (ASD) and developmental delays (DD) in children.
Area of Science:
- Neurodevelopmental disorders
- Maternal health
- Pediatric health
Background:
- Metabolic conditions (MCs) during pregnancy, such as diabetes, hypertension, and obesity, are increasingly prevalent.
- The association between maternal MCs and offspring neurodevelopmental outcomes, including autism spectrum disorder (ASD) and developmental delays (DD), requires further investigation.
Purpose of the Study:
- To examine the association between maternal metabolic conditions (diabetes, hypertension, obesity) during pregnancy and the risk of ASD, DD, or specific developmental impairments in offspring.
Main Methods:
- A population-based, case-control study (CHARGE study) enrolled 517 children with ASD, 172 with DD, and 315 controls aged 2-5 years.
- Maternal MCs were ascertained via medical records or interviews. Offspring diagnoses were confirmed using standardized assessments.
Main Results:
- Maternal MCs were more common in mothers of children with ASD and DD compared to controls.
- Collectively, MCs were associated with a higher likelihood of ASD (OR: 1.61) and DD (OR: 2.35).
- Offspring exposed to maternal MCs showed significantly lower scores on early learning and adaptive behavior scales.
Conclusions:
- Maternal metabolic conditions during pregnancy may be broadly linked to neurodevelopmental problems in children.
- The rising prevalence of obesity highlights these findings as a significant public health concern.
Objective:
We examined whether metabolic conditions (MCs) during pregnancy (diabetes, hypertension, and obesity) are associated with autism spectrum disorder (ASD), developmental delays (DD), or impairments in specific domains of development in the offspring.
Methods:
Children aged 2 to 5 years (517 ASD, 172 DD, and 315 controls) were enrolled in the CHARGE (Childhood Autism Risks from Genetics and the Environment) study, a population-based, case-control investigation between January 2003 and June 2010. Eligible children were born in California, had parents who spoke English or Spanish, and were living with a biological parent in selected regions of California. Children's diagnoses were confirmed by using standardized assessments. Information regarding maternal conditions was ascertained from medical records or structured interview with the mother.
Results:
All MCs were more prevalent among case mothers compared with controls. Collectively, these conditions were associated with a higher likelihood of ASD and DD relative to controls (odds ratio: 1.61 [95% confidence interval: 1.10-2.37; odds ratio: 2.35 [95% confidence interval: 1.43-3.88], respectively). Among ASD cases, children of women with diabetes had Mullen Scales of Early Learning (MSEL) expressive language scores 0.4 SD lower than children of mothers without MCs (P < .01). Among children without ASD, those exposed to any MC scored lower on all MSEL and Vineland Adaptive Behavior Scales (VABS) subscales and composites by at least 0.4 SD (P < .01 for each subscale/composite).
Conclusions:
Maternal MCs may be broadly associated with neurodevelopmental problems in children. With obesity rising steadily, these results appear to raise serious public health concerns.
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