Association between historical lead exposure, population density, and autism prevalence: a county-level ecological study in Norway.
Grossman A · 2026 · Frontiers in neuroscience
WASTE classifies this as Negative / Null Result Report · AI classification, approximate
The study found no significant effect — useful as a negative control or null benchmark for your own design.
Abstract (excerpt)
Background Autism spectrum disorder (ASD) prevalence has increased markedly across high-income countries, including Norway, yet environmental drivers remain poorly understood. We hypothesized that historical lead exposure may inversely…
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Metadata source: Europe PMC · DOI 10.3389/fnins.2026.1729731