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New research: there is no conclusive evidence that glass pipes use may cause young people to smoke

  April 24 - according to Vapingpost, an analysis that combined 17 studies to investigate whether e-cigarette use is linked to subsequent smoking shows that the evidence that e-cigarette use may cause young people to smoke is not as strong glass bongs as it appears.

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  The study, carried out by researchers from the university of Bristol's alcohol and tobacco research group (TARG) and supported by Bristol's MRC integrated epidemiology unit (IEU) and NIHR Bristol biomedical research centre (BRC), found that young users of non-smoking e-cigarettes were almost five times more likely to smoke.

  But the findings do not provide firm evidence for a possible "portal effect" or atomisation that leads to smoking."Policy makers have used the results of research, including the research we conducted in this study, to support strict regulation of e-cigarettes, including restrictions on fragrances and even a blanket ban, but the evidence suggests that the use of e-cigarettes may cause young people to smoke less strongly than it seems."Jasmine Khouja, a doctoral student in the school of psychological sciences at TARG.

  In their analysis, the team found a number of problems related to the study, which led them to conclude that smoking is not suitable for e-cigarettes.While the association between e-cigarette use by non-smokers and subsequent smoking appears strong, the cool water pipes evidence is unreliable because the data was collected through self-reported measures of smoking history rather than biochemical validation.

  In addition, none of the studies included negative controls that would show whether the association was causal.For this reason, tobacco harm reduction experts have long pointed out that the association between cigarettes and e-cigarettes cannot be considered causal, because personality factors need to be taken into account.Young people have a higher propensity to experiment than other age groups.Moreover, those with experimental personality types may dabble in a variety of substances, including e-cigarettes and regular cigarettes.

  The researchers added: "much of the evidence does not take into account the nicotine content of e-cigarettes used by non-smokers, which means it is difficult to draw conclusions about whether nicotine is the mechanism that causes this association."They conclude that future research should address the issues already highlighted and analyze the correlation between e-cigarettes and smoking by using more advanced tests.