Smoking during Pregnancy Is a Risk Factor for Executive Function Deficits in Preschool-aged Children

Area of Science:

• Developmental Psychology
• Neuroscience
• Public Health

Background:

• Maternal nicotine exposure during pregnancy negatively impacts child development.
• Existing research links prenatal smoking to psychological deficits in offspring.
• Executive functioning is crucial for a child's cognitive and behavioral development.

Purpose of the Study:

• To investigate executive functioning deficits in preschool children exposed to maternal smoking during pregnancy.
• To compare executive function profiles of children born to smokers versus non-smokers.
• To assess the reliability of parental and teacher reports on executive function deficits.

Main Methods:

• Utilized the Behavior Rating Inventory of Executive Functions - Preschool Version (BRIEF-P, German version) for parental and teacher assessments.
• Compared executive functioning in 71 children of mothers who smoked during pregnancy with a control group.
• Examined inter-rater agreement between parents and preschool teachers in a subsample.

Main Results:

• Children of mothers who smoked during pregnancy exhibited a higher incidence of executive function deficits.
• Clinically significant inhibitory deficits were almost four times more prevalent in children of smokers (p=0.006).
• Both parents and teachers reported increased inhibitory deficits in children exposed to prenatal smoke.

Conclusions:

• Findings confirm the detrimental effect of prenatal smoking on children's executive functioning.
• Elevated inhibitory deficits in offspring of smokers align with research on ADHD symptoms.
• Prenatal nicotine exposure poses a risk for developing crucial self-regulatory skills.