[COVID-19 and Smoking: A Systematic Review and Meta-Analysis of the Evidence].

ABSTRACT:

Objective

The aim of this study was to determine if tobacco use in patients with Covid-19 is associated with a negative disease course and adverse outcome, and if smoking, current and past, is associated with a greater possibility of developing COVID-19.

Material and methods

A systematic review (SR) and meta-analysis (MA) of previously published works were performed. The search strategy included all known descriptors for Covid-19 and tobacco and was conducted in different databases. Appropriate statistical models were used to address the effect size in meta-analysis, namely random effects and fixed effects model.

Results

Thirty-four articles were identified in the SR of which 19 were included in the MA. Being a smoker or former smoker was shown to be a risk factor for

SUBMITTER: Jimenez-Ruiz CA 

PROVIDER: S-EPMC7381922 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature