Assessing Diabetes Care Disparities with Ambulatory Care Quality Measures Jennifer M. Joseph, Pamela Jo Johnson, Douglas R. Wholey, and Mary L. Frederick Objective. To identify and describe racial/ethnic disparities in overall diabetes management. Data Source/Study Setting. Electronic health record data from calendar year 2010 were obtained from all primary care clinics at one large health system in Minnesota (n = 22,633). Study Design. We used multivariate logistic regression to estimate the odds of achieving the following diabetes management goals: A1C