There are three major findings -- all preliminary -- from this study.

Liz Ruzzo

I am aware of no consumer product on the market that is prohibited by federal law or regulation from truthfully informing consumers of the primary benefit of that product.

Here, they find a correlation between e-cigarette use and higher and more sustained levels of smoking. But because this is a cross-sectional study, they cannot determine which came first. In other words, what is the direction of the causal relationship? Does the e-cigarette use precede, and cause, the smoking? Or does the smoking precede, and cause, the e-cigarette use?

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