Does vaping increase COVID-19 risk?: Difference between revisions

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(updated UK study to reflect new conclusion in peer-reviewed version)
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Since the beginning of the COVID-19 pandemic, many have speculated that vaping could increase the risk of getting COVID-19 and experiencing more severe outcomes from the disease. The claims were grounded in little to no evidence, and only a small amount has emerged since.
Since the beginning of the COVID-19 pandemic, many have speculated that vaping could increase the risk of getting COVID-19 and experiencing more severe outcomes from the disease. The claims were grounded in little to no evidence, and only a small amount has emerged since.


The authors of a [https://www.jahonline.org/article/S1054-139X(20)30399-2/fulltext#%20 California study] claimed that their survey showed young vapers were five to seven times more likely than never vapers to test positive. It received a massive amount of media coverage. It also received scathing criticism and calls for retraction from longtime researchers in the field who cited [https://pubpeer.com/publications/CEB008BBD48F89272321EB50092793 multiple methodological issues]. A [https://www.laeknabladid.is/tolublod/2020/12/nr/7557 large Icelandic study] reported that the proportion of e-cigarette users was lower among patients with COVID-19 than in the general population of Iceland and that patients using e-cigarettes did not have more severe symptoms than other patients. A [https://www.sciencedirect.com/science/article/abs/pii/S0376871621000855?via%3Dihub UK study] found that "self-reported diagnosed/suspected Covid-19 was not associated with vaping status". A large [https://journals.sagepub.com/doi/10.1177/21501327211024391 Mayo Clinic study] found that "patients who used only e-cigarettes were not more likely to have a COVID-19 diagnosis". Disease outcomes were not analyzed.
The authors of a [https://www.jahonline.org/article/S1054-139X(20)30399-2/fulltext#%20 California study] claimed that their survey showed young vapers were five to seven times more likely than never vapers to test positive. It received a massive amount of media coverage. It also received scathing criticism and calls for retraction from longtime researchers in the field who cited [https://pubpeer.com/publications/CEB008BBD48F89272321EB50092793 multiple methodological issues]. A [https://www.laeknabladid.is/tolublod/2020/12/nr/7557 large Icelandic study] reported that the proportion of e-cigarette users was lower among patients with COVID-19 than in the general population of Iceland and that patients using e-cigarettes did not have more severe symptoms than other patients. A [https://www.sciencedirect.com/science/article/abs/pii/S0376871621000855?via%3Dihub UK study] found, "There were no differences in diagnosed/suspected Covid-19 between never, current and ex-vapers". A large [https://journals.sagepub.com/doi/10.1177/21501327211024391 Mayo Clinic study] found that "patients who used only e-cigarettes were not more likely to have a COVID-19 diagnosis". Disease outcomes were not analyzed.


There is a considerable amount of evidence that current tobacco smoking is associated with a reduced chance of testing positive. Former smokers appear to face more serious outcomes than current or never smokers. Outcome data on current smoking are mixed.
There is a considerable amount of evidence that current tobacco smoking is associated with a reduced chance of testing positive. Former smokers appear to face more serious outcomes than current or never smokers. Outcome data on current smoking are mixed.