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COVID-19 Severity by M-CHA(2)DS(2)-VASc Score

 

Input
 

CHF	No (0)
	Yes (1)
HTN	No (0)
	Yes (1)
Age		mo yr
Diabetes	No (0)
	Yes (1)
Gender	Female (0)
	Male (1)
CVA	No (0)
	Yes (2)
VascularDx	No (0)
	Yes (1)

 
Result
 
Important: Inputs must be complete to perform calculation.

 

Score		# count index logit none number points score

 

     
 
Include literature references: Yes   No

 

M-CHA(2)DS(2)-VASc Score Interpretation

 

0 to 1 point:	Low risk
2 to 3 points:	Intermediate risk
4 to 9 points:	High risk

 

 

 

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.
• In the Valente study^[1], the CHA(2)DS(2)-VASc score is modified by reversing the point values for the Sex coefficient: females are assigned 0 points and males are assigned 1 point.
• CHF: congestive heart failure; HTN: systemic hypertension; CVA: stroke; VascularDx: vascular disease.

 
Equations used
 

Score = AgeFactor + Gender + CHF + HTN + Diabetes + CVA + VascularDx

 

 

Calculation Details and Variables

• Equation parameters such as CHF, 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.
• AgeFactor is assigned values by this ordered logic:
  • If Age ≥75 yr AgeFactor = 2
  • Else if Age ≥65 yr AgeFactor = 1
  • Else AgeFactor = 0.

 

References

1. Valente Silva B, Placido R, Jorge C, et al. Prognostic Accuracy of the Modified CHA2DS2-VASc Score in COVID-19 Patients Admitted to the Emergency Department Due to Clinical Worsening. Acta Med Port. 2021 Nov 26. PubMed ID: 34837357
2. Olesen JB, Lip GY, Hansen ML, et al. Validation of risk stratification schemes for predicting stroke and thromboembolism in patients with atrial fibrillation: nationwide cohort study. BMJ. 2011 Jan 31;342:d124. doi: 10.1136/bmj.d124. PubMed ID: 21282258
3. Lip GY, Halperin JL. Improving stroke risk stratification in atrial fibrillation. Am J Med. 2010 Jun;123(6):484-8. Review. PubMed ID: 20569748

 

Associated Medical Subject Headings [MeSH]
 

Aged,   Atrial Fibrillation,   COVID-19,   Emergency Service,   Female,   Fibrinolytic Agents,   Hospital,   Hospitalization,   Humans,   Incidence,   Kaplan-Meier Estimate,   Male,   Prognosis,   Pulmonary Embolism,   Retrospective Studies,   Risk Assessment,   Risk Factors,   Stroke,   Thromboembolism,   Vitamin K

 

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

 
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.