Prenatal opioid exposure has a limited effect on academic performance in school-aged children when socioeconomic and environmental factors are considered, according to research published on Apr. 13 by Penn State College of Medicine.
The study is significant because it challenges previous assumptions that neonatal abstinence syndrome (NAS), a condition seen in newborns exposed to opioids before birth, leads directly to poor academic outcomes later in life. Researchers found that other factors, such as school quality, family economic status, race, and maternal education level, have a greater influence on standardized test scores than NAS history alone.
The team analyzed English/Language Arts and math test results for 3,494 students from grades three through eight—23% with a history of NAS and 77% without. The researchers matched the groups based on age, sex, mother's education level, and health insurance type at birth using data from the South Carolina Integrated Data System. This database allowed them to track mother-child pairs over time across multiple agencies.
After adjusting for demographic and socioeconomic variables, mean English/Language Arts scores were similar between children with and without NAS histories. In math tests there was a small but statistically significant decrease among those with NAS backgrounds; however overall scores were below state averages regardless of NAS status. Many students in the study came from economically disadvantaged backgrounds: more than 30% had mothers who did not finish high school and most were uninsured or covered by Medicaid.
The research also highlighted that attending lower-rated schools or lacking access to early childhood education had stronger effects on academic achievement than prenatal opioid exposure itself. Children whose mothers participated in programs like Women, Infants and Children (WIC) or who identified as non-Hispanic Black scored lower compared to their peers; meanwhile higher maternal education levels correlated with better student performance.
"Based on previous literature, I expected to see a more prominent difference in academic performance," said lead researcher Corr. "But when you start to put the whole story together - they didn't have access to early childhood education to give them a solid head start, they're enrolled in poorly rated schools, their families may be struggling with financial insecurities - it's not hard to understand why kids with a history of NAS may not be performing as well as some of their peers." The research team plans further interviews with parents and guardians of affected children to explore additional influences on long-term educational success.
