Glycemic Control in Patients with Employer-Sponsored Health Benefits

Lack of health care insurance is strongly associated with poor glycemic control in patients with diabetes. However, even among insured patients, achieving glycemic control can be challenging. We investigated whether demographics, physical activity, engagement with health care providers, as well as medical and socioeconomic factors were associated with poor glycemic control (hemoglobin A1c [HbA1c] >8.5%) in patients with type 2 diabetes (T2D) who had employer-sponsored health insurance. We studied data of 2981 employees and spouses with T2D who participated in an annual health assessment in 2019 and had medical insurance benefits for at least 12 consecutive months prior to the assessment. T2D was defined by International Classification of Diseases codes, self-reported physician diagnoses, or test results (fasting glucose >125 mg/dL or HbA1c >6.4%). HbA1c was >7% in 43% of the patients and >8.5% in 16% of patients. Among patients with poor glycemic control, 90% had HbA1c data for at least 2 of the previous 3 years; 76% had poor control in at least 1 of the previous 3 years. Poor glycemic control was associated with demographics (younger age men), disease severity (greater number of diabetes complications and prescription medications), poor engagement with health care providers (eg, more years since last physical exam, less confidence talking with physician), and less physical activity. Thus, lack of glycemic control is persistent and unexpectedly frequent in patients with T2D despite access to health care benefits. Improving physical activity and engagement with providers may improve glycemic control in this population.