Patanavanich (2020)
Smoking Is Associated With COVID-19 Progression: A Meta-analysis
https://www.ncbi.nlm.nih.gov/pubmed/32399563
https://dx.doi.org/10.1093%2Fntr%2Fntaa082
Patient characteristics
Smoking (History of smoking vs. Non smoking)
COVID-19 (severe/critical)
Odds ratio: 1.910 (1.420-2.590) Univariate analysis

United States

Meta-analysis

Review

11590

We identified 19 peer-reviewed papers with a total of 11,590 COVID-19 patients. The study outcome was progression of COVID-19 among people who already had the disease. A random effects meta-analysis was applied.

A total of 11 590 COVID-19 patients included in our meta-analysis, 2133 of whom (18.4%) experienced disease progression and 731 (6.3%) with a history of smoking. A total of 218 patients with a history of smoking (29.8%) experienced disease progression, compared with 17.6% of nonsmoking patients.

0


COVID-19 (severe/critical)

2133

Patients with a history of smoking experienced COVID-19 disease progression


Patient characteristics

Smoking

A total of 218 patients with a history of smoking (29.8%) experienced disease progression, compared with 17.6% of non-smoking patients.

Non smoking

History of smoking


Odds ratio

1.910 (1.420-2.590)

No

Yes

No

pooled analysis


Smoking is associated with COVID-19 disease progression.

Average

Yes