A systematic review of observational studies on long-term air pollution exposure and epigenetic alterations in adults.

J Glob Health · 2026 · PMC13002177 · PMID 41855425

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did not reach statistical significanceno p-value reported

Most of the identified observational studies have relatively small sample sizes (range = 23–8397 participants), which likely contributed to the frequently observed trends that did not reach statistical significance.

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