Method, system, and computer program product for the evaluation of glycemic control in diabetes from self-monitoring data
DCFirst Claim
1. A computerized method for evaluating hemoglobin A1c (HbA1c) of a patient based on blood glucose (BG) data collected over a predetermined duration, said method comprising:
- computing on a computer weighted deviation of the BG of said patient toward high blood glucose (WR) from a predefined normal level;
computing on a computer mean blood glucose (Dr); and
estimating on a computer HbA1c using a predetermined mathematical formula based on said computed WR and Dr;
defining predetermined categories for the estimate of HbA1c, each of said HbA1c estimate categories representing a range of values for estimated HbA1c; and
assigning said estimated HbA1c to at least one of said HbA1c estimate categories.
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Accused Products
Abstract
A method, system, and computer program product related to the diagnosis of diabetes, and is directed to predicting the long-term risk of hyperglycemia, and the long-term and short-term risks of severe hypoglycemia in diabetics, based on blood glucose readings collected by a self-monitoring blood glucose device. The method, system, and computer program product pertain directly to the enhancement of existing home blood glucose monitoring devices, by introducing an intelligent data interpretation component capable of predicting both HbA1c and periods of increased risk of hypoglycemia, and to the enhancement of emerging continuous monitoring devices by the same features. With these predictions the diabetic can take steps to prevent the adverse consequences associated with hyperglycemia and hypoglycemia.
204 Citations
36 Claims
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1. A computerized method for evaluating hemoglobin A1c (HbA1c) of a patient based on blood glucose (BG) data collected over a predetermined duration, said method comprising:
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computing on a computer weighted deviation of the BG of said patient toward high blood glucose (WR) from a predefined normal level; computing on a computer mean blood glucose (Dr); and estimating on a computer HbA1c using a predetermined mathematical formula based on said computed WR and Dr; defining predetermined categories for the estimate of HbA1c, each of said HbA1c estimate categories representing a range of values for estimated HbA1c; and assigning said estimated HbA1c to at least one of said HbA1c estimate categories. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A computerized method for evaluating hemoglobin A1c (HbA1c) of a patient based on blood glucose (BG) data collected over a predetermined duration, said method comprising:
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computing on a computer weighted deviation of the BG of said patient toward high blood glucose (WR) from a predefined normal level; computing on a computer mean blood glucose (Dr) based on said collected BG data; estimating on a computer HbA1c using a predetermined mathematical formula based on said computed WR and Dr; and providing on a computer a predetermined confidence interval for classification of said estimated value of HbA1c. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A system for evaluating hemoglobin A1c (HbA1c) of a patient based on blood glucose (BG) data collected over a predetermined duration, said system comprising:
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a database component operative to maintain a database identifying said BG data; a processor programmed to; compute weighted deviation of the BG of said patient toward high blood glucose (WR) from a predefined normal level; compute mean blood glucose (Dr) based on said collected BG data; and estimate HbA1c using a predetermined mathematical formula based on said computed WR and Dr; and define predetermined categories for the estimate of HbA1c, each of said HbA1c estimate categories representing a range of values for estimated HbA1c; and assign said estimated HbA1c to at least one of said HbA1c estimate categories. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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22. A glycemic control system for evaluating hemoglobin A1c (HbA1c) of a patient, said system comprising:
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a blood glucose (BG) acquisition mechanism, said acquisition mechanism configured to acquire BG data from the patient, a database component operative to maintain a database identifying said BG data;
a processor programmed to;compute weighted deviation of the BG of said patient toward high blood glucose (WR) from a predefined normal level; compute mean blood glucose (Dr) based on said collected BG data; and estimate HbA1c using a predetermined mathematical formula based on said computed WR and Dr; define predetermined categories for the estimate of HbA1c, each of said HbA1c estimate categories representing a range of values for estimated HbA1c; and assign said estimated HbA1c to at least one of said HbA1c estimate categories. - View Dependent Claims (23, 24, 25, 26, 27, 28)
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29. A computer program product comprising a computer useable medium having computer program logic for enabling at least one processor in a computer system to evaluate hemoglobin A1c (HbA1c) of a patient based on blood glucose (BG) data, said computer program logic comprising:
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computing weighted deviation of the BG of said patient toward high blood glucose (WR) from a predefined normal level; computing mean blood glucose (Dr) based on said collected BG data; and estimating HbA1c using a predetermined mathematical formula based on said computed WR and Dr; and providing a predetermined confidence interval for classification of said estimated value of HbA1c, wherein said confidence interval is a single value or a range of values.
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30. A glycemic control system for evaluating hemoglobin A1c (HbA1c) of a patient, said system comprising:
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a blood glucose (BG) acquisition mechanism, said acquisition mechanism configured to acquire BG data from the patient, a database component operative to maintain a database identifying said BG data; a processor programmed to; compute weighted deviation of the BG of said patient toward high blood glucose (WR) from a predefined normal level and estimated rate of change of blood glucose (Dr) based on said collected BG data; and estimate HbA1c using a predetermined mathematical formula based on said computed WR and Dr, wherein; said computed WR is mathematically defined from a series of BG readings x1, x2, . . . xn taken at time points t1, t2, . . . tn as;
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31. A glycemic control system for evaluating hemoglobin A1c (HbA1c) of a patient, said system comprising:
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a blood glucose (BG) acquisition mechanism, said acquisition mechanism configured to acquire BG data from the patient, a database component operative to maintain a database identifying said BG data; a processor programmed to; compute weighted deviation of the BG of said patient toward high blood glucose (WR) from a predefined normal level and estimated rate of change of blood glucose (Dr) based on said collected BG data; and estimate HbA1c using a predetermined mathematical formula based on said computed WR and Dr, wherein said estimating HbA1c from said BG monitoring data comprises determining Estimated HbA1c according to;
Estimated HbA1c=0.9008(WR)−
0.8207(DR)+6.7489.
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32. A glycemic control system for evaluating hemoglobin A1c (HbA1c) of a patient, said system comprising:
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a blood glucose (BG) acquisition mechanism, said acquisition mechanism configured to acquire BG data from the patient, a database component operative to maintain a database identifying said BG data; a processor programmed to; compute weighted deviation of the BG of said patient toward high blood glucose (WR) from a predefined normal level and estimated rate of change of blood glucose (Dr) based on said collected BG data; estimate HbA1c using a predetermined mathematical formula based on said computed WR and Dr; define predetermined categories for the estimate of HbA1c, each of said HbA1c estimate categories representing a range of values for estimated HbA1c; and assign said estimated HbA1c to at least one of said HbA1c estimate categories. - View Dependent Claims (33, 34, 35, 36)
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Specification