The associations between environmental quality and preterm birth in the United States, 2000-2005: a cross-sectional analysis.

Environ Health · 2015 · PMC4464856 · PMID 26051702

Europe PMC DOI

hedged sentence

—

closest p

—

boldest claim

The sentences

a negative trendno p-value reported

The most consistent effect estimates were in the metropolitan urbanized strata, where a negative trend was observed.

also in 4,201 other papers

Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.