This is Dr. Tom Eissenberg.
I have no conflicts of interest associated with e-cigarettes. The e-cigarette study was funded by the National Cancer Institute. My work has *never* been funded by the tobacco industry: anybody who says differently is not telling the truth and should be asked to provide evidence. My pharmaceutical industry funded research has *never* involved either nicotine or tobacco and, in any case, the last such study I conducted was back in ~2001 or ~2002. VCU (the university where I worked) had an unfortunate contract with Philip Morris a few years ago that has since been terminated; I knew nothing about it, was never part of it, and protested it when I learned of it. I repeat: I have no conflicts of interest associated with this study.
As for the CNN report, CNN released their story before the study was ready for release by Tobacco Control. I was as surprised as you to see the story this morning -- CNN had agreed to wait for publication. I am trying very hard to get a final PDF copy of the study from Tobacco Control so that I can share it. Right now all I have is uncorrected galley proofs.
Finally, you should understand that one of the purposes of the study was to determine how much nicotine the products I was testing delivered to naive users under acute dosing conditions. Of course their are other studies that can be conducted and I can assure you I noted the study's limitations (these products, these cartridges, these conditions) in the discussion. Frankly, I was interested in the nicotine delivery, whatever it was, and had no preconceived notions or agenda. Indeed, that is why the two control conditions (own brand cigarettes, sham smoking) are included -- I wanted the two extremes (efficient nicotine delivery, no nicotine delivery) to see where the e-cigs ended up: more like a normal cigarette or more like sham smoking. I am sorry if the results are not agreeable to some of you: I don't control the data, I report them.
Finally, I saw another thread on here where people describe vaping and using snus at the same time, and someone else on this thread noted (as have others elsewhere) that they vape more frequently than they used to smoke. One person reported smoking normal tobacco cigarettes when stressed, but vaping at other times. All of these observations are all consistent with a product (e cig) that may not be delivering the nicotine dose to which the user has become accustomed.
Thanks for your attention. When the PDF is available, you'll hear about it.
Tom E.