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COVID-19 PRIORITY Score

 

Input
 

Age		mo yr
SpO2		% fraction percent rate ratio
Systolic Blood Pressure		Pascal cmH2O mmHg torr
Serum Creatinine		mcmol/L mg/dL mmol/L
	Dependency (0.164)
	Cardiovascular disease (CVD) (0.316)
	Confusion (0.681)
	Dyspnea (0.504)
On Dialysis	No (0)
	Yes (1)
On Oxygen	No (0)
	Yes (1)
Respiratory Rate		br/min breaths/min

 
Results
 
Important: Inputs must be complete to perform calculation.

 

Factors		# count index logit none number points score
Criticality Risk		% fraction percent rate ratio
Decimal Precision   0 1 2 3

 

     
 
Include literature references: Yes   No

 

 

Notes

• 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.
• Dependency: moderate to severe dependency correlating with a Barthel Index <60.
• Cardiovascular Disease (CVD) includes heart failure, coronary artery disease, cerebrovascular disease, peripheral artery disease, and atrial fibrillation.

 
Equations used
 

Factors = (2.663 * (Age/100)2) + (0.844 / (SystolicBloodPressure/100)2) + Dependency + CVD + RenalFactor + Dyspnea + RespiratoryRateFactor + O2Factor + Confusion - 4.665

CriticalityRisk = 100 / (1 + e(-Factors))

 

 

Calculation Details and Variables

• Equation parameters such as On Dialysis, 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.
• RespiratoryRateFactor is assigned values by this ordered logic:
  • If Respiratory Rate >20 breaths/min RespiratoryRateFactor = 0.911
  • Else RespiratoryRateFactor = 0.
• RenalFactor is assigned the value of 0.586 when the Serum Creatinine is >3 mg/dL or when the patient is a dialysis recipient. Otherwise, RenalFactor is assigned the value of 0.
• O2Factor is assigned the value of 1.2 when the SpO₂ is ≤93% or when the patient is On Oxygen. Otherwise, O2Factor is assigned the value of 0.

 

References

1. Martínez-Lacalzada M, Viteri-Noel A, Manzano L, et al. Predicting critical illness on initial diagnosis of COVID-19 based on easily obtained clinical variables: development and validation of the PRIORITY model. Clin Microbiol Infect. 2021 Jul 15:S1198-743X(21)00380-3. PubMed ID: 34274525

 

Associated Medical Subject Headings [MeSH]
 

COVID-19,   Critical Illness,   Hospital Mortality,   Hospitalization,   Humans,   Models,   Retrospective Studies,   Risk Assessment,   Spain,   Theoretical

 

Associated Logical Observation Identifiers Names and Codes [LOINC]
 

Parameter	LOINC's and Suggested Units
Age	21612-7 : yr      21612-7 : yr      21612-7 : years      30525-0 : Years old      30525-0 : yr      30525-0 : years
SpO2	2708-6 : %      2713-6 : %      51733-4 : %      59408-5 : %
Systolic Blood Pressure	8480-6 : mmHg
Serum Creatinine	2160-0 : mg/dL      38483-4 : mg/dL      14682-9 : mcmol/L      22726-4 : mcmol/L      59826-8 : mcmol/L
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). The LOINC table, LOINC codes, and LOINC panels and forms file are copyright © 1995-2014, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and available at no cost under the license at http://loinc.org/terms-of-use.