Lifetime environmental tobacco smoke exposure and the risk of chronic obstructive pulmonary disease.

Environ Health · 2005 · PMC1145187 · PMID 15890079

Europe PMC DOI

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highly significantno p-value reported

We also controlled for cumulative lifetime pack-years of smoking in additional analyses, which continued to show highly significant results for home ETS exposure, but slightly attenuated findings for workplace ETS after VGDF exposure was also controlled.

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