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Calculator: Gupta postoperative pneumonia risk in adults


 Calculator: Gupta postoperative pneumonia risk in adults

 
Input
 
Age   years
COPD* No (-0.4553)

 Yes (0)
Functional status Independent (0)

 Partially dependent (0.7653)

 Totally dependent (0.94)
ASA physical status 1. Normal healthy patient (-3.0225)

 2. Mild systemic disease (-1.6057)

 3. Severe systemic disease (-0.4915)

 4. Severe systemic disease that is a constant threat to life (0.0123)

 5. Moribund, not expected to survive without surgery (0)
Sepsis None (-0.7641)

 Preoperative systemic inflammatory response syndrome (0)

 Preoperative sepsis (-0.0842)

 Preoperative septic shock (0.1048)
Smoking within last year No (-0.4306)

 Yes (0)
Type of procedure  

 
Results
 
Important: Inputs must be complete to perform calculation.

 
 
Terms  
Postoperative pneumonia risk   %
 

 
 

 

 
Notes
  • *To screen out unreliable diagnoses and very mild COPD, COPD for this calculator was defined as a diagnosis of COPD with FEV1 <75%, COPD causing functional disability, or COPD previously leading to a hospitalization.
  • This tool has been further validated with similar model performance (C statistic: 0.860 and 0.855, respectively) and excellent predictive performance.[2]
  • COPD: chronic obstructive pulmonary disease; FEV1: forced expiratory volume in 1 second; ASA: American Society of Anesthesiologists; ENT: ear, nose, and throat.

 
Equations used
 
Terms = -2.8977 + (0.0144 * Age) + COPD* + Functional status + ASA physical status + Sepsis + Smoking within last year + Type of procedure
Postoperative pneumonia risk = 100 * e(Terms) / (1 + e(Terms))

 

 
Equation parameters, such as COPD*, have 2 or more discrete values that may be used in the calculation. The numbers in the parentheses, eg, (-0.4553), represent the values that will be used.
 

 
Only digits 0 to 9 and a single decimal point (".") are acceptable as numeric inputs. Attempted input of other characters into a numeric field may lead to an incorrect result.

Information on this page may not appear correctly if printed.

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