Prenatal exposure to paracetamol and risk of autism spectrum disorder: systematic review and meta-analysis of observational studies.

Rev Bras Ginecol Obstet · 2026 · PMC13399481 · PMID 42500177

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a significant trendno p-value reported

Exposed children showed an increased risk of presenting more hyperactivity/impulsivity symptoms (IRR 1.41, 95% CI 1.01 to 1.98), with a significant trend observed for increasing frequency of acetaminophen use.

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