New Study Concludes that Vaping Causes Heart Attacks

This study is a perfect demonstration of that phenomenon.Because this is a cross-sectional study, and because respondents were asked whether they hadever had a heart attack, one cannot determine whether the heart attacks followed e-cigarette use or preceded it. In other words, we do not know that vaping preceded the heart attack for any of the subjects. It is entirely possible that in most of these cases, the smokers suffered a heart attack and then started vaping in an attempt to quit smoking. In fact, I believe that is the most likely explanation for the observed study findings.It is not even biologically plausible that vaping could increase the risk of cardiovascular disease beyond that of smoking. Why? Because the cardiovascular effects of tobacco smoke saturate at a very low level, meaning that it takes only a little exposure to increase your risk. But beyond that, there is little additional risk.On the other hand, it is quite plausible that smokers make quit attempts after experiencing a heart attack and that in recent years, these quit attempts have often involved the use of e-cigarettes.It is true that many of the adverse effects of smoking were first observed in cross-sectional studies. However, these were followed up with longitudinal studies that confirmed the findings. Before we reach a conclusion on whether vaping poses a heart attack risk, we need longitudinal studies. This single cross-sectional study is not enough because there is no way to tell the direction ...
Source: The Rest of the Story: Tobacco News Analysis and Commentary - Category: Addiction Source Type: blogs