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Effect of asthma, COPD, and ACO on COVID-19: A systematic review and meta-analysis

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  • Yuka Uruma
  • Toshie Manabe
  • Yuji Fujikura
  • Motoyasu Iikura
  • Masayuki Hojo
  • Koichiro Kudo

Abstract

Introduction: The prevalence of asthma, chronic obstructive pulmonary disease (COPD), and asthma-COPD overlap (ACO) in patients with COVID-19 varies, as well as their risks of mortality. The present study aimed to assess the prevalence of asthma, COPD, and ACO as comorbidities, and to determine their risks of mortality in patients with COVID-19 using a systematic review and meta-analysis. Methods: We systematically reviewed clinical studies that reported the comorbidities of asthma, COPD, and ACO in patients with COVID-19. We searched various databases including PubMed (from inception to 27 September 2021) for eligible studies written in English. A meta-analysis was performed using the random-effect model for measuring the prevalence of asthma, COPD, and ACO as comorbidities, and the mortality risk of asthma, COPD, and ACO in patients with COVID-19 was estimated. A stratified analysis was conducted according to country. Results: One hundred one studies were eligible, and 1,229,434 patients with COVID-19 were identified. Among them, the estimated prevalence of asthma, COPD, and ACO using a meta-analysis was 10.04% (95% confidence interval [CI], 8.79–11.30), 8.18% (95% CI, 7.01–9.35), and 3.70% (95% CI, 2.40–5.00), respectively. The odds ratio for mortality of pre-existing asthma in COVID-19 patients was 0.89 (95% CI, 0.55–1.4; p = 0.630), while that in pre-existing COPD in COVID-19 patients was 3.79 (95% CI, 2.74–5.24; p

Suggested Citation

  • Yuka Uruma & Toshie Manabe & Yuji Fujikura & Motoyasu Iikura & Masayuki Hojo & Koichiro Kudo, 2022. "Effect of asthma, COPD, and ACO on COVID-19: A systematic review and meta-analysis," PLOS ONE, Public Library of Science, vol. 17(11), pages 1-26, November.
    • Handle: RePEc:plo:pone00:0276774
    DOI: 10.1371/journal.pone.0276774
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