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COVID-19 ABC2-SPH Score

 

Input
 

Age		mo yr
BUN		mg/dL mmol/L
Comorbidities		# count index logit none number points score
CRP		mg/L mg/dL nmol/L
O2Sat		% fraction percent rate ratio
FIO2		%O2 % fractionO2 fraction litresO2
Platelets		#/mcL #/microL / nl /mcL /microL /uL 10*3/uL 10*6/uL 10*6/uL 10E+9/L 10^3/microL K/mm3 K/uL Mill/mcl Million/ul Thous/mcL Thousand/uL X10E+09/L X10E+12/L cells/mcL cells/microL m/cmm thou/mcL x10(12)/L x10(3)/mcL x10(3)/microL x10(6)/L x10(6)/mcL x10(6)/microL x10(9)/L x1000/mm3 x10^12/L x10^3/mcL x10^3/microL x10^6/L x10^6/mcL x10^6/microL x10^9/L {cells}/uL
Heart Rate		/min beats/min bpm

 
Results
 
Important: Inputs must be complete to perform calculation.

 

SF Ratio		% fraction percent rate ratio
ABC2SPH Score		# count index logit none number points score

 

ABC2-SPH Score Interpretation

 

0 to 1 point:	Low risk with <6% mortality
2 to 4 points:	Intermediate risk with 6 to 14.9% mortality
5 to 8 points:	High risk with 15 to 49.9% mortality
9 to 20 points:	Very high risk with mortality ≥50%

 

 

Data action

 
     
 
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.
• Comorbidities include hypertension, previous stroke, heart failure, diabetes mellitus, obesity, coronary artery disease, atrial fib and/or flutter, cirrhosis, chronic obstructive pulmonary disease, and cancer.

 
Equations used
 

SFRatio = 100 * O2Sat / FIO2

ABC2SPHScore = AgeFactor + BUNFactor + ComorbiditiesFactor + CRPFactor + SFFactor + PlateletsFactor + HeartRateFactor

 

 

Calculation Details and Variables

• AgeFactor is assigned values by this ordered logic:
  • If Age ≥80 yr, AgeFactor = 5
  • Else if Age ≥70 yr, AgeFactor = 3
  • Else if Age ≥60 yr, AgeFactor = 1
  • Else AgeFactor = 0.
• BUNFactor is assigned values by this ordered logic:
  • If BUN ≥42 mg/dL, BUNFactor = 3
  • Else BUNFactor = 0.
• ComorbiditiesFactor is assigned values by this ordered logic:
  • If Comorbidities ≥2 number, ComorbiditiesFactor = 1
  • Else ComorbiditiesFactor = 0.
• CRPFactor is assigned values by this ordered logic:
  • If CRP ≥100 mg/dL, CRPFactor = 1
  • Else CRPFactor = 0.
• SFRatioFactor is assigned values 0 points for SF Ratio >315, 1 point for SF Ratio 235 to 315, 3 points for SF Ratio 150 to 235, and 6 points for SF Ratio <150.
• PlateletsFactor is assigned values by this ordered logic:
  • If Platelets <100 x10^9/L, PlateletsFactor = 2
  • Else if Platelets ≤150 x10^9/L, PlateletsFactor = 1
  • Else PlateletsFactor = 0.
• HeartRateFactor is assigned values by this ordered logic:
  • If Heart Rate ≥131 beats/min, HeartRateFactor = 2
  • Else if Heart Rate ≥91 beats/min, HeartRateFactor = 1
  • Else HeartRateFactor = 0.

 

References

1. Marcolino MS, Pires MC, Ramos LEF, et al. ABC2-SPH risk score for in-hospital mortality in COVID-19 patients: development, external validation and comparison with other available scores. Int J Infect Dis. 2021 Jul 24;110:281-308. PubMed ID: 34311100

 

Associated Medical Subject Headings [MeSH]
 

Aged,   COVID-19,   Hospital Mortality,   Hospitalization,   Humans,   Middle Aged,   Prognosis,   Retrospective Studies,   Risk Factors,   SARS-CoV-2

 

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
BUN	3094-0 : mg/dL      6299-2 : mg/dL      14937-7 : mmol/L      59570-2 : mmol/L
CRP	1988-5 : mg/L      48421-2 : mg/L      76485-2 : nmol/L
O2Sat	2708-6 : %      2713-6 : %      51733-4 : %      59408-5 : %
FIO2	3150-0 : %      19993-5 : %      19992-7 : %      19994-3 : %      19996-8 : %      19995-0 : %
Platelets	777-3 : x10^9/L      26515-7 : x10(3)/mcL
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      69001-6 : beats/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.