Procalcitonin Is Not a Reliable Biomarker of Bacterial Coinfection in People With Coronavirus Disease 2019 Undergoing Microbiological Investigation at the Time of Hospital Admission

International Severe Acute Respiratory and Emerging Infections Consortium Coronavirus Clinical Characterisation Consortium (ISARIC4C) Investigators, Katharine A Relph, Clark D Russell*, Cameron J Fairfield, Lance Turtle, Thushan I de Silva, Matthew K Siggins, Thomas M Drake, Ryan S Thwaites, Simon Abrams, Shona C Moore, Hayley E Hardwick, Wilna Oosthuyzen, Ewen M Harrison, Annemarie B Docherty, Peter J M Openshaw, J Kenneth Baillie, Malcolm G Semple, Antonia Ho

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Admission procalcitonin measurements and microbiology results were available for 1040 hospitalized adults with coronavirus disease 2019 (from 48 902 included in the International Severe Acute Respiratory and Emerging Infections Consortium World Health Organization Clinical Characterisation Protocol UK study). Although procalcitonin was higher in bacterial coinfection, this was neither clinically significant (median [IQR], 0.33 [0.11–1.70] ng/mL vs 0.24 [0.10–0.90] ng/mL) nor diagnostically useful (area under the receiver operating characteristic curve, 0.56 [95% confidence interval, .51–.60]).
Original languageEnglish
Article numberofac179
Number of pages6
JournalOpen Forum Infectious Diseases
Volume9
Issue number5
DOIs
Publication statusPublished - 1 May 2022

Bibliographical note

Financial support:
This work was supported by the National Institute for Health Research (NIHR) (grant number CO-CIN-01); the Medical Research Council (grant number MC_PC_19059); and the NIHR Health Protection Research Unit (HPRU) in Emerging and Zoonotic Infections at University of Liverpool in partnership with Public Health England (PHE), in collaboration with Liverpool School of Tropical Medicine and the University of Oxford (grant number 200907); NIHR HPRU in Respiratory Infections at Imperial College London with PHE (grant number 200927); Wellcome Trust and Department for International Development (grant number 215091/Z/18/Z); the Bill and Melinda Gates Foundation (grant number OPP1209135); Liverpool Experimental Cancer Medicine Centre (grant number C18616/A25153); NIHR Biomedical Research Centre at Imperial College London (grant number IS-BRC-1215-20013); EU Platform for European Preparedness Against (Re-) emerging Epidemics (FP7 project 602525); and NIHR Clinical Research Network for providing infrastructure support for this research. L. T. is supported by a Wellcome Trust fellowship (grant number 205228/Z/16/Z). P. J. M. O. is supported by an NIHR Senior Investigator Award (grant number 201385).

Keywords

  • COVID-19
  • SARS-CoV-2
  • procalcitonin
  • coinfection

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