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Infectious Disease · Critical Care

4C Mortality Score (COVID-19) calculator

Enter the published formula inputs below to calculate and interpret this score.

Clinical inputs

Result

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Formula inputs

  • Fourc Age Ge 80
  • Fourc Male Sex
  • Fourc Comorbidity Ge 2
  • Fourc Resp Rate Ge 24
  • Fourc Spo2 Lt 92
  • Fourc Gcs Lt 15
  • Fourc Urea Ge 8
  • Fourc Crp Ge 50

Primary source

Knight SR et al. Risk stratification of patients admitted to hospital with covid-19 using the ISARIC WHO Clinical Characterisation Protocol. BMJ. DOI: 10.1136/bmj.m3339. PMID: 33332546. Scope: 4C mortality score points for hospitalized COVID-19 (age ≥80, sex, comorbidity count, RR, SpO2, GCS, urea, CRP) using published weight mapping. (2020)

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