Smoking is associated with an increased risk for death in patients with COVID-19

Objectives:
Does smoking increase risk for COVID-19 mortality?

Study design:
This review article included 73 articles with 863,313 COVID-19 patients.

Results and conclusions:   
The investigators found that smoking was significantly associated with an increased risk of 19% for death in patients with COVID-19 [pooled relative risk = 1.19, 95% CI = 1.12 to 1.27]. Sensitivity analysis indicated that these results were stable and robust.

The investigators concluded that smoking is associated with an increased risk for COVID-19 mortality.

Original title:
Smoking is independently associated with an increased risk for COVID-19 mortality: A systematic review and meta-analysis based on adjusted effect estimates by Hou H, Li Y, [...], Yang H.

Link:
https://pubmed.ncbi.nlm.nih.gov/34049390/

Additional information of El Mondo:
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