Interaction between parental preconception and prenatal smoking and alcohol use on autism-like behaviour in preschoolers: a cross-sectional study in Huizhou, China - Summary - MDSpire
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Influence of Parental Smoking and Alcohol Consumption Before and During Pregnancy on Autism-Related Behaviors in Preschool Children: A Cross-Sectional Analysis from Huizhou, China
To investigate the associations between preconception and prenatal smoking and alcohol consumption and autism-like behaviour in preschool children.
Approach:
Data Analysis: Logistic regression was used to analyze associations between parental smoking, drinking, and autism-like behaviour, with interaction models evaluating the interplay between smoking and drinking.
Key Findings:
Maternal prenatal passive smoking exposure (OR = 1.327, 95% CI: 1.042 to 1.690) and paternal smoking history (OR = 1.643, 95% CI: 1.036 to 2.605) are associated with higher odds of autism-like behaviour.
A significant negative additive interaction was observed between maternal smoking cessation during pregnancy and concurrent alcohol consumption (RERI = -2.170, 95% CI: -4.035 to -0.304).
Interpretation:
Prenatal exposure to parental smoking is a significant risk factor for autism-like behaviour in preschoolers.
Limitations:
The study is cross-sectional, limiting causal inference.
Self-reported data may introduce bias in smoking and alcohol consumption reporting.
Conclusion:
This study identifies prenatal exposure to parental smoking as a significant risk factor for autism-like behaviour in preschoolers.
In a nationwide US cohort, parental subfecundity was associated with higher odds of autism spectrum disorder and modest increases in behavioral symptoms, while in vitro fertilization showed no statistically significant associations with neurodevelopmental outcomes.
