A flaw on a meta-analysis of smoking and the severity of COVID-19: the association should have been endorsed

Fei Ran Guo^{1

2}

Affiliations

¹ Department of Family Medicine, National Taiwan University Hospital, Taipei 100, Taiwan.
² Department of Family Medicine, College of Medicine, National Taiwan University, Taipei 100, Taiwan.

Comment

Fei Ran Guo. J Public Health (Oxf). 2020.

. 2020 Aug 18;42(3):653-654.

doi: 10.1093/pubmed/fdaa083.

Fei Ran Guo^{1

2}

¹ Department of Family Medicine, National Taiwan University Hospital, Taipei 100, Taiwan.
² Department of Family Medicine, College of Medicine, National Taiwan University, Taipei 100, Taiwan.

No abstract available

Figures

Active smoking is not associated with severity of coronavirus disease 2019 (COVID-19).
Lippi G, Henry BM. Lippi G, et al. Eur J Intern Med. 2020 May;75:107-108. doi: 10.1016/j.ejim.2020.03.014. Epub 2020 Mar 16. Eur J Intern Med. 2020. PMID: 32192856 Free PMC article. No abstract available.

1. Lippi G, Henry BM. Active smoking is not associated with severity of coronavirus disease 2019 (COVID-19). Eur J Intern Med 2020;75:107–8. - PMC - PubMed
1. Zhao Q, Meng M, Kumar R et al. The impact of COPD and smoking history on the severity of Covid-19: a systemic review and meta-analysis. J Med Virol 2020. doi: 10.1002/jmv.25889. - DOI - PMC - PubMed
1. Zheng Z, Peng F, Xu B et al. Risk factors of critical & mortal COVID-19 cases: a systematic literature review and meta-analysis. Review J Infect 2020;S0163-4453:30234–6. - PMC - PubMed
1. Guo FR. Smoking links to the severity of Covid-19: an update of a meta-analysis. J Med Virol 2020. doi: 10.1002/jmv.25967. - DOI - PMC - PubMed
1. Alqahtani JS, Oyelade T, Aldhahir AM et al. Prevalence, severity and mortality associated with COPD and smoking in patients with COVID-19: a rapid systematic review and meta-analysis. PLoS One 2020;15:e0233147. doi: 10.1371/journal.pone.0233147. - DOI - PMC - PubMed