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Published on: December 14, 2014
Prenatal alcohol exposure and educational achievement in children aged 8-9 years
Colleen M O'Leary1, Cate Taylor, Stephen R Zubrick
1Centre for Population Health Research, Curtin University, Perth, Australia. colleen.oleary@curtin.edu.au
Insights
Heavy prenatal alcohol exposure, particularly in the first trimester, doubles the risk of children not meeting reading benchmarks. Occasional binge drinking late in pregnancy also impacts writing skills, highlighting the critical role of alcohol exposure timing and pattern.
Area of Science:
- Neuroscience
- Developmental Psychology
- Public Health
Background:
- Prenatal alcohol exposure (PAE) is a leading preventable cause of birth defects and neurodevelopmental disorders.
- The impact of PAE on academic achievement, considering dose, pattern, and timing, requires further investigation.
Purpose of the Study:
- To examine the relationship between PAE and academic outcomes in reading, writing, spelling, and numeracy.
- To determine how the dose, pattern, and timing of PAE influence specific academic achievements in children aged 8-9 years.
Main Methods:
- A population-based birth cohort (n=4056) in Western Australia was linked to education records.
- Logistic regression analysis was used to assess associations between PAE and academic benchmark achievement.
- Confounding factors were adjusted for, with abstinent mothers as the referent group.
Main Results:
- Heavy PAE in the first trimester increased the likelihood of not meeting reading benchmarks by 2.26 times.
- Occasional binge drinking in late pregnancy increased the likelihood of not meeting writing benchmarks by 2.35 times.
- Low-moderate PAE showed no association with academic underachievement.
Conclusions:
- The specific learning problems associated with PAE are dependent on the dose, pattern, and timing of exposure.
- Targeted interventions and awareness campaigns are crucial to mitigate the adverse effects of PAE on child development and academic success.
Objective:
This study examines the relationships between the dose, pattern, and timing of prenatal alcohol exposure and achievement in reading, writing, spelling, and numeracy in children aged 8 to 9 years.
Methods:
Data from a randomly selected, population-based birth cohort of infants born to non-Indigenous women in Western Australia between 1995 and 1997 (n = 4714) (Randomly Ascertained Sample of Children born in Australia's Largest State Study cohort) were linked to the Western Australian Midwives' Notification System and the Western Australian Literacy and Numeracy Assessment statewide education testing program. The records for 86% (n = 4056) of the cohort were successfully linked with education records when the children were aged 8 to 9 years. The associations between prenatal alcohol exposure and achievement of national benchmarks in school numeracy, reading, spelling, and writing tests and nonattendance for the tests was examined. Logistic regression was used to generate adjusted odds ratios (aOR) and 95% confidence intervals (CI), adjusting for potential confounding factors. The referent group included children of mothers who previously drank alcohol but who abstained during pregnancy.
Results:
Children were twice as likely not to achieve the benchmark for reading after heavy prenatal alcohol exposure during the first trimester (aOR 2.26; 95% CI 1.10-4.65) and for writing when exposed to occasional binge drinking in late pregnancy (aOR 2.35; 95% CI 1.04-5.43). Low-moderate prenatal alcohol exposure was not associated with academic underachievement.
Conclusions:
The type of learning problems expressed depends on the dose, pattern, and timing of prenatal alcohol exposure.
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