Lung function reductions associated with motor vehicle density in chronic obstructive pulmonary disease: a cross-sectional study.

Respir Res · 2016 · PMC5078919 · PMID 27776510

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borderline significanceno p-value reported

A borderline significance was observed for post-bronchodilator % predicted FEV1 with a difference in percentage points between the low and high vehicle density category of 11.4 percentage points.

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