Relationship of Glycemic Control to Total Diabetes-Related Costs for Managed Care Health Plan Members With Type 2 Diabetes

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Abstract
OBJECTIVE: Glycosylated hemoglobin (A1c) is a well-established measure of glycemic control, and evidence suggests that maintaining an acceptable A1c level may be associated with lower treatment costs in adults with diabetes. Understanding the impact on total treatment costs of staying at the target A1c level is of great importance to managed care organizations. The goal of this study was to determine whether type 2 diabetes patients at or below the target A1c level of 7% had lower diabetes-related costs compared with patients above an A1c level of 7%. METHODS: This study was a retrospective database analysis using eligibility data, medical and pharmacy claims data, and laboratory data from a large U.S. health care organization. Patients were included in the study if they had 2 or more claims for type 2 diabetes (International Classification of Diseases, Ninth Revision, Clinical Modification [ICD-9-CM] codes 250.x0 or 250.x2) and at least 1 A1c value (first such date defined as the index date) during the 1...

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