Smoking is associated with progression of COVID-19 disease (search done on 28 April 2020)

Added June 15, 2020

Citation: Patanavanich R, Glantz SA. Smoking is associated with COVID-19 progression: a meta-analysis. Nicotine & Tobacco Research. 2020 May 11:ntaa0082.

What is this? Smokers are more vulnerable to poor outcomes of respiratory infections, such as COVID-19, and it is important to know if they are more likely to progress to severe or critical disease or death.

In this rapid review, the authors searched for comparative studies exploring the association of smoking with COVID-19 disease progression. They restricted their searches to articles published in any language between January 2020 and April 2020 and did the search on 28 April 2020. They included 19 studies from China (16 studies), Korea (1) and the USA (2), using data from a total of 11,590 patients in their meta-analysis.

What was found: At the time of this review, the included studies showed that smoking increases the risk of severe infection and complications related to COVID-19; with smokers being approximately twice as likely to progress to severe or critical disease or death.


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