Welcome back to What's it Worth! Join your host, Dr. Diana Langworthy, and guests Dr. Alexis Quade and Dr. Tory Pressman, as they break down a 2026 systematic review and meta-analysis evaluating prenatal paracetamol exposure and child neurodevelopmental outcomes, including autism spectrum disorder, attention-deficit/hyperactivity disorder (ADHD), and intellectual disability. After renewed public attention in 2025 around Tylenol use in pregnancy and neurodevelopmental disorders, clinicians and patients are left asking how much weight to give observational medication safety signals. This episode explores how study design, confounding, outcome definitions, and risk-benefit thinking shape what we can — and cannot — conclude from the evidence. Let's dive in and see what it's worth! Key Points We explore why Tylenol, pregnancy, autism, ADHD, and neurodevelopmental disorders became such a high-profile medication safety conversation. The episode critiques a 2026 systematic review and meta-analysis, with a focus on study design choices like sibling comparisons, adjusted observational data, validated outcomes, and risk-of-bias assessment. We discuss why confounding by indication matters when the exposure is a medication used for fever, pain, or illness during pregnancy. We contrast the 2026 systematic review with the 2025 Navigation Guide paper and ask whether environmental health methods can be directly applied to pregnancy medication safety questions. Drs. Quade and Pressman help translate the evidence into real-world counseling about uncertainty, risk, benefit, and trust. When headlines move faster than evidence, how should clinicians and patients decide what's actually worth changing? ------> Tune in to find out! References [Episode Study] D'Antonio F, Flacco ME, Della Valle L, Prasad S, Manzoli L, Samara A, Khalil A. Prenatal paracetamol exposure and child neurodevelopment: a systematic review and meta-analysis. Lancet Obstet Gynaecol Womens Health. Published online January 16, 2026. doi:10.1016/S3050-5038(25)00211-0 Prada D, Ritz B, Bauer AZ, Baccarelli AA. Evaluation of the evidence on acetaminophen use and neurodevelopmental disorders using the Navigation Guide methodology. Environmental Health. 2025;24:56. doi:10.1186/s12940-025-01208-0 American College of Obstetricians and Gynecologists. Acetaminophen Use in Pregnancy and Neurodevelopmental Outcomes. Practice Advisory. Published September 22, 2025. Accessed April 13, 2026. Bérard A, Cottin J, Leal LF, et al. Systematic Review and Meta-Analysis: Acetaminophen Use During Pregnancy and the Risk of Neurodevelopmental Disorders in Childhood. J Am Acad Child Adolesc Psychiatry. 2026;65(4):484-504. Sheikh J, Allotey J, Khashan AS, et al. Maternal paracetamol (acetaminophen) use during pregnancy and risk of autism and attention deficit/hyperactivity disorder in offspring: umbrella review of systematic reviews. BMJ. 2025;391:e088141. Lee PC, Chen CY, Pan ML, et al. Maternal Acetaminophen Use and Child Neurodevelopment. JAMA Pediatr. Published online March 9, 2026. doi:10.1001/jamapediatrics.2026.0071.