Home
- A1c Control Calculator
-
This calculator is recommended for use in adult non-pregnant
patients with type 2 diabetes based on a study by Cahn A et al.
It is only to be used as a guide for providers and patients, as
this calculator is not meant to substitute for the physician’s
clinical judgment and may not capture all decision-making
considerations for each patient.
This calculator is for internal use only.
- Contacts
-
Marwan Hamaty, MD, MBA.
Endocrinology, Diabetes and Metabolism
- Update History
v1.0 Released Oct 2016 - Initial program release.
- Scoring Logic
-
| Weight |
Paremeters |
Score 1 |
Score 2 |
Score 3 |
| 29.7 |
Hypoglycemica Risk |
Low |
Medium |
High |
| 27 |
Life Expectancy |
Long |
Decreased |
Short |
| 17.5 |
Important Comorbidities |
None |
One |
Two or more |
| 15.7 |
Macro and Advanced Micro Complications |
None |
One |
Two or more |
| 10 |
Disease Duration |
<5 years |
5-20 years |
>20 years |
-
Sum of Products = Sum(Weight * Score)
Glycemic target = 6.5 + (Sum of products-100) / 100
Cahn. A. et al. Diabetes care; DOI 10.2337/dc15-0187
(Published online ahead of print on Oct, 30, 2015)
Average plasama glucose mg/dl = 35.6 (A1c)-77.3 (ADA
formula, based on DCCT)
Average plasama glucose mg/dl = 28.7 (A1c)-46.7
(Alternate formula, 7 times daily glucose + CGM + labs)
Refrence: Gallager EJ et al. Journal of Diabetes, 2009. 1:
9-17
- References
-
Cahn A, Raz I, Kleinman Y, Balicer R, Hoshen M, Lieberman N,
Brenig N, Del Prato S, Cefalu WT. Clinical Assessment of
Individualized Glycemic Goals in Patients With Type 2 Diabetes:
Formulation of an Algorithm Based on a Survey Among Leading
Worldwide Diabetologists. Diabetes Care. 2015;38(12):2293-300.
Gallagher EJ, Le Roith D, Bloomgarden Z. Review of hemoglobin
A(1c) in the management of diabetes. J Diabetes. 2009;1(1):9-17.
How to Use The A1c Goal Calculator:
Consider adopting an acceptable range of A1c for your patient. This
should be based on your experience with the patient and expected
variation of A1c measurement depending on the technique (especially
blood draw by lab versus point of care testing) and seasonal variation
of A1c. When making your decision, also consider what is the lowest
possible A1c without having significant side effects; among these,
avoiding hypoglycemia is a priority. For example, if you consider a
reasonable A1c is less than 8% and your calculation provided a value
of 7.3%. You may chose a goal of A1c to be at least less than 8% and
better if less than 7.5%; if achievable with no significant side
effects. For more info refer to
ABOUT
A1c Control Calculator
Results