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Biomarker Analysis Provides Evidence for Host Response Homogeneity in Patients With COVID-19

*Corresponding author for this work
  • University of Amsterdam
  • Amsterdam UMC

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Abstract

Background: The exploration of subphenotypes in hospitalized patients with COVID-19 has garnered substantial attention. Most existing studies operate under the assumption of heterogeneity in COVID-19 patient populations, and this assumption can lead to erroneous conclusions. Research Question: Do plasma biomarker profiles reflective of various pathophysiologic pathways provide evidence for heterogeneity in hospitalized patients with COVID-19? Study Design and Methods: This is a secondary analysis of two prospective observational studies of adult patients hospitalized with COVID-19-related respiratory failure in the general ward and ICU of two medical centers and with 44 host response biomarkers available. Parsimonious models were used to allocate and validate ARDS inflammatory subphenotypes. Novel biological subphenotypes were identified using latent profile analysis (LPA) and hierarchical clustering. Heterogeneity of treatment effect for corticosteroids was assessed using an interaction term in a logistic regression model. Results: The cohort consisted of 162 patients admitted to the ICU and 464 patients admitted to the ward. Using the parsimonious models in ICU patients, only 3.1% to 13% of patients were classified as hyperinflammatory subphenotype. Using de novo subphenotyping techniques, neither clustering nor LPA revealed significant evidence for heterogeneity in the ward (P = .11-.13), ICU (P = .23-.88), or combined cohort (P = .05-.88). Adding clinical variables did not alter results in the ICU or combined cohort. Using the combined approach in the ward cohort, indices provided borderline significance for two subphenotypes, and there was good agreement between clustering and LPA (87.9%), but no heterogeneity of treatment effect for corticosteroids was observed between these two classes (P = .198). Interpretation: Systemic inflammatory subphenotypes derived from patients with ARDS did not reflect the variation in severity of COVID-19 in this study. Empirical evidence, derived from cluster analysis or LPA, offers limited support for biological heterogeneity in COVID-19.
Original languageEnglish
Article number100062
JournalCHEST Critical Care
Volume2
Issue number2
DOIs
Publication statusPublished - 1 Jun 2024

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being

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