Evidence Synthesis of Observational Studies in Environmental Health: Lessons Learned from a Systematic Review on Traffic-Related Air Pollution.

Environ Health Perspect · 2023 · PMC10664749 · PMID 37991444

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highly significantno p-value reported

In the traffic review, 31 the Egger test was highly significant for EC and total mortality but not for NO 2 and PM 2.5 .

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