Related Experiment Video
Updated: Apr 4, 2026

Author Spotlight: Studying the Impact of Maternal Dietary Deficiencies on Long-Term Offspring Health Outcomes
Published on: June 28, 2024
Preventing intellectual disability during pregnancy: what are the potentially high yield targets?
Insights
Maternal depression and bipolar disorder are linked to a higher risk of intellectual disability (ID) in children. These conditions account for a significant portion of the population-attributable risk for ID.
Area of Science:
- Neuroscience
- Pediatrics
- Psychiatry
Background:
- Intellectual disability (ID) affects approximately 1-3% of the population.
- Identifying risk factors for unknown-cause ID is crucial for early intervention and prevention strategies.
- Maternal mental health conditions are increasingly recognized as potential contributors to child developmental outcomes.
Purpose of the Study:
- To identify maternal risk factors associated with intellectual disability (ID) in children.
- To estimate the population-attributable risk (PAR) for identified maternal risk factors contributing to ID.
- To investigate the association between maternal major depression and bipolar disorder and the risk of ID in offspring.
Main Methods:
- Retrospective cohort study utilizing South Carolina Medicaid billing records, birth certificates, and administrative data (2004-2010).
- Inclusion of 123,922 maternal-child pairs.
- Logistic generalized estimating equations (GEE) regression models were employed to assess the association between maternal risk factors and child ID, with and without controlling for birth weight.
Main Results:
- The prevalence of ID among the studied children was 3.85%.
- Maternal major depression was significantly associated with increased odds of ID in children (males OR 1.34, females OR 1.59).
- Maternal bipolar disorder was also significantly associated with increased odds of ID in children (males OR 1.95, females OR 1.63).
- Population-attributable risk estimates indicated that maternal depression accounted for 2.17-4.70% and bipolar disorder for 2.05-2.85% of ID cases.
Conclusions:
- Maternal major depression and bipolar disorder are significant risk factors associated with intellectual disability in children.
- These maternal mental health conditions collectively contribute to approximately 2-5% of the population-attributable risk for ID.
- Findings underscore the importance of addressing maternal mental health in the context of child neurodevelopmental outcomes.
Objective:
To identify risk factors among children with unknown cause intellectual disability (ID) and to estimate the population-attributable risk (PAR) associated with these factors.
Methods:
This was a retrospective cohort study of maternal and child pairs born between 2004 and 2010 in South Carolina, and information was obtained from Medicaid billing records, birth certificates, and other administrative data. The data included 123,922 children and logistic generalized estimating equations (GEE) regression models were used to estimate the association of maternal risk factors and ID. We estimated models with and without birth weight as a covariate, since low birth weight is known to be a mediator of the association between some risk factors and ID in children.
Results:
The prevalence of ID in the children was 3.85% and the associations between risk factors and ID were similar for female and male children. We found that the odds of having ID were increased if a child's mother had a diagnosis of major depression; for male children, the odds ratio (OR) was 1.34 (95% confidence interval [CI] 1.14-1.59, PAR 2.17%); and for females, the OR was 1.59 (95% CI 1.30-1.95, PAR 4.70%). The odds of having ID were also increased for children of women with bipolar disorder (males - OR 1.95, 95% CI 1.53-2.48, PAR 2.85%; females - OR 1.63, 95% CI 1.20-2.22, PAR 2.05%).
Conclusions:
Major maternal depression and bipolar disorder were each significantly associated with the odds of ID in children, each accounting for approximately 2-5% of the PAR, when controlling for covariates.
More Related Videos
07:36Modeling Encephalopathy of Prematurity Using Prenatal Hypoxia-ischemia with Intra-amniotic Lipopolysaccharide in Rats
Published on: November 20, 2015
19:57The Use of Trace Eyeblink Classical Conditioning to Assess Hippocampal Dysfunction in a Rat Model of Fetal Alcohol Spectrum Disorders
Published on: August 5, 2017
Related Concept Videos
Intellectual Disability
Environmental Influences on Intelligence
Teratogenicity
Biological Influences on Intelligence
Information Processing Approach
Learning Disabilities
Dyslexia
Dyslexia is a...