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  COVID-19 Severity by Shock Index and Modified Shock Index

 
Input
 
Heart Rate  
Systolic BP  
Diastolic BP  

 
Results
 
 
MAP  
Shock Index  
mShock Index  
 
Decimal Precision  

 
     
 
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.
  • In the Kurt article[1] the Shock Index cutoff for hospital mortality was 0.72 with sensitivity of 71.2%, specificity of 69.6%, and ROC-AUC of 0.719. The mShock Index cutoff for hospital mortality was 1 with sensitivity of 74%, specificity of 72.4%, and a slightly better ROC-AUC of 0.739.
  • BP: blood pressure; MAP: mean arterial pressure.

 
Equations used
 
MAP = ((2 * Diastolic BP) + Systolic BP) / 3
Shock Index = Heart Rate / Systolic BP
mShock Index = Heart Rate / MAP

 

 
References
  1. Kurt E, Bahadirli S. The Usefulness of Shock Index and Modified Shock Index in Predicting the Outcome of COVID-19 Patients. Disaster Med Public Health Prep. 2021 Jun 8:1-6. PubMed ID: 34099089 PubMed Logo
  2. Liu YC, Liu JH, Fang ZA, et al. Modified shock index and mortality rate of emergency patients. World J Emerg Med. 2012;3(2):114-7. PubMed ID: 25215048 PubMed Logo

 
Associated Logical Observation Identifiers Names and Codes [LOINC]
 
Parameter LOINC's and Suggested Units
Heart Rate 8867-4 : beats/min      8893-0 : beats/min      8890-6 : beats/min      8889-8 : beats/min      68999-2 : beats/min      76282-3 : beats/min      69000-8 : beats/min      
Systolic BP 8480-6 : mmHg      
Diastolic BP 8462-4 : mmHg      
MAP 8478-0 : mmHg      8458-2 : mmHg      76214-6 : mmHg      75996-9 : mmHg      76536-2 : mmHg      
Shock Index 98909-5 : score      
mShock Index 98910-3 : score      

 
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.

 
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All information contained in and produced by the EBMcalc system is provided for educational purposes only. This information should not be used for the diagnosis or treatment of any health problem or disease. THIS INFORMATION IS NOT INTENDED TO REPLACE CLINICAL JUDGMENT OR GUIDE INDIVIDUAL PATIENT CARE IN ANY MANNER. Click here for full notice and disclaimer.
 
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