Statin use and clinical outcomes in patients with COVID-19: An updated systematic review and meta-analysis

Rimesh Pal1, Mainak Banerjee2, Urmila Yadav3

  • 1Endocrinology, Post Graduate Institute of Medical Education and Research, Chandigarh, Chandigarh, India rimesh.ben@gmail.com.

Insights

Statin use in COVID-19 patients was linked to better outcomes in adjusted analyses, despite initial unadjusted data showing no effect. Continue statin therapy, especially for those with comorbidities, during the pandemic.

Area of Science:

  • Cardiology
  • Infectious Diseases
  • Pharmacology

Background:

  • Observational studies suggest statins may reduce adverse outcomes in COVID-19 patients.
  • Existing data are limited, inconsistent, and lack randomized controlled trials.
  • A comprehensive meta-analysis is needed to clarify the effect of statins on COVID-19 outcomes.

Purpose of the Study:

  • To conduct a meta-analysis of observational studies to summarize the effect of statin use on clinical outcomes in COVID-19 patients.
  • To evaluate both unadjusted and adjusted risk estimates for statin use in COVID-19.
  • To provide an updated summary of evidence regarding statins and COVID-19 outcomes.

Main Methods:

  • Systematic search of PubMed, Scopus, and Web of Science databases up to December 18, 2020.
  • Inclusion of observational studies comparing COVID-19 patients with and without statin use (prior and in-hospital).
  • Quality assessment using the Newcastle-Ottawa Scale and calculation of pooled odds ratios (OR) with 95% confidence intervals (CIs).

Main Results:

  • 14 observational studies with 19,988 COVID-19 patients were included; all were of high/moderate quality.
  • Unadjusted analysis showed no significant association between statin use and improved outcomes (OR 1.02, p=0.94).
  • Adjusted analysis revealed a significant reduction in adverse outcomes with statin use (OR 0.51, p<0.0005).

Conclusions:

  • Statin use is associated with improved clinical outcomes in patients with COVID-19.
  • The findings support the continuation of statin therapy for individuals with comorbidities during the pandemic.
  • Further research, including randomized controlled trials, may be warranted to confirm these findings.
Abstract

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