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Glycemic Penalty Index (GPI)

Purpose: To determine the antimalarial prophylaxis needed for a traveler based on malarial sensitivity pattern in the travel region and drug contraindications.

Description

Van Herpe et al developed the Glycemic Penalty Index (GPI) to monitor a patient's glucose control. The authors are from Katholieke Universiteit Leuven.


The normal range for blood glucose in 80 to 110 mg/dL.

 

Deviations from this are scored based on whether there is hyperglycemia or hypoglycemia. The maximum score is 100 points for an abnormal glucose.

 

Hypoglycemia

Points

0 to 19 mg/dL

100

20 to 79 mg/dL

7.468 * ((80 - (glucose))^0.6337)

 

 

Hyperglycemia

Points

111 to 250 mg/dL

6.1767 * (((glucose) - 110)^0.5635)

> 250 mg/dL

100

 

glucose penalty index =

= (SUM(points for hypoglycemia episodes) + SUM(points for hyperglycemic episodes)) / (total number of measurements)

 

relative contribution of hypoglycemic episodes =

= SUM(points for hypoglycemia episodes) / (SUM(points for hypoglycemia episodes) + SUM(points for hyperglycemic episodes)) * 100%

 

relative contribution of hyperglycemic episodes =

= SUM(points for hyperglycemia episodes) / (SUM(points for hypoglycemia episodes) + SUM(points for hyperglycemic episodes)) * 100%

 

Interpretation:

• minimum GPI: 0

• maximum GPI: 100

• The higher the GPI the more the glucose is out of proper control.


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Specialty

Objective

ICD-10