Associations between cigarette smoking and total mortality differ depending on serum concentrations of persistent organic pollutants among the elderly.

J Korean Med Sci · 2013 · PMC3744697 · PMID 23960436

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marginally significantno p-value reported

Summary measures of POPs subclasses showed significant or marginally significant interaction with cigarette smoking on the risk of total mortality.

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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.