Secondhand Smoke Exposure in Primary School Children: A Survey in Dhaka, Bangladesh.

Nicotine Tob Res · 2019 · PMC6472694 · PMID 29228385

Europe PMC DOI

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borderline significantno p-value reported

Although geometric mean cotinine levels demonstrated a dose response relationship across maternal and paternal education levels, it was borderline significant when adjusted for other explanatory factors in the model.

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marginally significantno p-value reported

There is some support to this idea by the marginally significant association found between smoking restrictions and the salivary cotinine levels of those children that were living with smokers.

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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.