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  COVID-19 SOARS Score

Respiratory Rate  
History of CVA No (0)

Yes (1)

Important: Inputs must be complete to perform calculation.

SOARS Score  

  SOARS Score Interpretation

0 to 2 points: 1.4 to 5.9% mortality
3 to 5 points: 23.4 to 53.9% mortality
6 to 8 points: 72.5 to 100% mortality


  Data action

Include literature references: Yes   No

  • This calculator represents findings from the literature referenced below. It is important to understand that these findings may not be representative of the experience in your local healthcare system.
  • SpO2 is oxygen saturation measured with subject breathing room air.
  • Mortality estimates are from the study derivation cohort.
  • SOARS: SpO2, Obesity, Age, Respiratory rate, Stroke history; BMI: body mass index; CVA: cerebrovascular accident.

Equations used
SOARSScore = SpO2Factor + BMIFactor + AgeFactor + RespiratoryRateFactor + History of CVA


Calculation Details and Variables
  • SpO2Factor is assigned values by this ordered logic:
    • If SpO2 ≤92 %, SpO2Factor = 1
    • Else SpO2Factor = 0.
  • BMIFactor is assigned values by this ordered logic:
    • If BMI >30 kg/m^2, BMIFactor = 1
    • Else BMIFactor = 0.
  • AgeFactor is assigned values by this ordered logic:
    • If Age ≥80 yr, AgeFactor = 4
    • Else if Age ≥70 yr, AgeFactor = 3
    • Else if Age ≥60 yr, AgeFactor = 2
    • Else if Age ≥50 yr, AgeFactor = 1
    • Else AgeFactor = 0.
  • RespiratoryRateFactor is assigned values by this ordered logic:
    • If Respiratory Rate >24 breaths/min, RespiratoryRateFactor = 1
    • Else RespiratoryRateFactor = 0.
  • Equation parameters such as History of CVA, have two or more discrete values that may be used in the calculation. The numbers in the parentheses, e.g. (0), represent the values that will be used.

  1. Chua F, Vancheeswaran R, Draper A, et al. Early prognostication of COVID-19 to guide hospitalisation versus outpatient monitoring using a point-of-test risk prediction score. Thorax. 2021 Jul;76(7):696-703. PubMed ID: 33692174 PubMed Logo
  2. Agarwal A, Lang E. In adults hospitalized with COVID-19, the 5-variable SOARS score predicted in-hospital mortality. Ann Intern Med. 2021 Aug;174(8):JC95. PubMed ID: 34339229 PubMed Logo

Associated Medical Subject Headings [MeSH]
         80 and over,   Adult,   Aged,   Ambulatory,   COVID-19,   Decision Making,   Female,   Hospital Mortality,   Hospitalization,   Humans,   Male,   Middle Aged,   Monitoring,   Pandemics,   Pneumonia,   Predictive Value of Tests,   Prognosis,   Risk Factors,   SARS-CoV-2,   Severity of Illness Index,   Viral

Associated Logical Observation Identifiers Names and Codes [LOINC]
Parameter LOINC's and Suggested Units
SpO2 2708-6 : %      2713-6 : %      51733-4 : %      59408-5 : %      
BMI 39156-5 : kg/m^2      59576-9 : kg/m^2      89270-3 : kg/m^2      
Age 21612-7 : yr      21612-7 : yr      21612-7 : years      30525-0 : Years old      30525-0 : yr      30525-0 : years      
Respiratory Rate 9303-9 : breaths/min      9279-1 : breaths/min      76170-0 : breaths/min      19840-8 : breaths/min      

This material contains content from LOINC (http://loinc.org). LOINC is copyright © 1995-2023, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and is available at no cost under the license at http://loinc.org/license. LOINC® is a registered United States trademark of Regenstrief Institute, Inc.

Associated ICD10-CM Codes
   J12.9Viral pneumonia, unspecified
   J12.89Other viral pneumonia


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