(See: Grana R, Benowitz N, Glantz SA. E-Cigarettes: A Scientific Review. Circulation 2014; 129: 1972-1986.)

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?

Thank God that we can count on the FDA to make sure that the cigarettes sold in this country are safe. God forbid that Sutra Bidis Red had been allowed onto the market. Who knows the death and destruction they would have wrought on the American people compared to the approved products, like Marlboro Kings, Camel Lights, and Newport Golds?

2. The regulations require pre-approval (or substantial equivalence determinations) for all new electronic cigarette products.

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