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
0
Fourc Band Low
Interpret only within the cited source population and criteria; use alongside complete clinical assessment.
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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