tetano
Editor, Senior Moderator
Clin Chim Acta. 2020 Mar 13. pii: S0009-8981(20)30124-8. doi: 10.1016/j.cca.2020.03.022. [Epub ahead of print]
Thrombocytopenia is associated with severe coronavirus disease 2019 (COVID-19) infections: A meta-analysis.
Author information
Abstract
BACKGROUND:
Coronavirus disease 2019 (COVID-19) is a novel infectious disease with lack of established laboratory markers available to evaluate illness severity. In this study, we investigate whether platelet count could differentiate between COVID-19 patients with or without severe disease. Additionally, we evaluate if thrombocytopenia is associated with severe COVID-19.
METHODS:
An electronic search in Medline, Scopus and Web of Science was performed to identify studies reporting data on platelet count in COVID-19 patients. A meta-analysis was performed, with calculation of weighted mean difference (WMD) of platelet number in COVID-19 patients with or without severe disease and odds ratio (OR) of thrombocytopenia for severe form of COVID-19.
RESULTS:
Nine studies with 1779 COVID-19 patients, 399 (22.4%) with severe disease, were included in the meta-analysis. The pooled analysis revealed that platelet count was significantly lower in patients with more severe COVID-19 (WMD -31?10[SUP]9[/SUP]/L; 95% CI, from -35 to -29?10[SUP]9[/SUP]/L). A subgroup analysis comparing patients by survival, found an even lower platelet count was observed with mortality (WMD, -48?10[SUP]9[/SUP]/L; 95% CI, -57 to -39?10[SUP]9[/SUP]/L. In the four studies (n=1427) which reported data on rate of thrombocytopenia, a low platelet count was associated with over fivefold enhanced risk of severe COVID-19 (OR, 5.1; 95% CI, 1.8-14.6).
CONCLUSIONS:
Low platelet count is associated with increased risk of severe disease and mortality in patients with COVID-19, and thus should serve as clinical indicator of worsening illness during hospitalization.
Copyright ? 2020. Published by Elsevier B.V.
KEYWORDS:
coronavirus, COVID-19; platelets; thrombocytopenia
PMID:32178975DOI:10.1016/j.cca.2020.03.022
Thrombocytopenia is associated with severe coronavirus disease 2019 (COVID-19) infections: A meta-analysis.
Author information
Abstract
BACKGROUND:
Coronavirus disease 2019 (COVID-19) is a novel infectious disease with lack of established laboratory markers available to evaluate illness severity. In this study, we investigate whether platelet count could differentiate between COVID-19 patients with or without severe disease. Additionally, we evaluate if thrombocytopenia is associated with severe COVID-19.
METHODS:
An electronic search in Medline, Scopus and Web of Science was performed to identify studies reporting data on platelet count in COVID-19 patients. A meta-analysis was performed, with calculation of weighted mean difference (WMD) of platelet number in COVID-19 patients with or without severe disease and odds ratio (OR) of thrombocytopenia for severe form of COVID-19.
RESULTS:
Nine studies with 1779 COVID-19 patients, 399 (22.4%) with severe disease, were included in the meta-analysis. The pooled analysis revealed that platelet count was significantly lower in patients with more severe COVID-19 (WMD -31?10[SUP]9[/SUP]/L; 95% CI, from -35 to -29?10[SUP]9[/SUP]/L). A subgroup analysis comparing patients by survival, found an even lower platelet count was observed with mortality (WMD, -48?10[SUP]9[/SUP]/L; 95% CI, -57 to -39?10[SUP]9[/SUP]/L. In the four studies (n=1427) which reported data on rate of thrombocytopenia, a low platelet count was associated with over fivefold enhanced risk of severe COVID-19 (OR, 5.1; 95% CI, 1.8-14.6).
CONCLUSIONS:
Low platelet count is associated with increased risk of severe disease and mortality in patients with COVID-19, and thus should serve as clinical indicator of worsening illness during hospitalization.
Copyright ? 2020. Published by Elsevier B.V.
KEYWORDS:
coronavirus, COVID-19; platelets; thrombocytopenia
PMID:32178975DOI:10.1016/j.cca.2020.03.022