Diabetes care in black and white veterans in the southeastern U.S.

Twombly JG, Long Q, Zhu M, Wilson PW, Narayan KM, Fraser LA, Webber BC, Phillips LS. Diabetes care in black and white veterans in the southeastern U.S. Diabetes Care. 2010 May 1; 33(5):958-63.

Related HSR&D Project(s)

• IIR 07-138 – Screening for prediabetes and early diabetes in primary care

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Abstract:

OBJECTIVE: Eliminating health disparities is a national priority, but progress has been difficult because of racial/ethnic differences in insurance coverage and access to health care. We investigated whether there were differences in diabetes care in the Veterans Administration (VA), where health care access should be relatively uniform. RESEARCH DESIGN AND METHODS: A1C and plasma glucose were compared before/after diagnosis of diabetes. RESULTS: Data were available for 1,456 black and 2,624 white veterans who met criteria for consistent primary care. Over 4-5 years before and after diagnosis, blacks had similar glucose and approximately 0.2% higher A1C levels than whites, and A1C differences could be attributed to glucose-independent associations between race and A1C. Blacks and whites also had comparable intervals between diagnostic-level hyperglycemia and diagnosis and between diagnosis and drug initiation. However, A1C was higher in blacks at the time of diagnosis (7.8 vs. 7.1%) and at initiation of pharmacotherapy (8.5 vs. 7.8%) (both P < 0.001). Differences in A1C at diagnosis and drug initiation were too large to be explained by differences in age, sex, BMI, and glucose-independent associations between race and A1C. CONCLUSIONS: In the VA, glucose levels are generally comparable in blacks and whites except at the times of diagnosis and initiation of pharmacotherapy, when glucose levels are higher in blacks. While understanding the basis for such residual disparities may be important to improve the health of racial/ethnic minorities in the U.S., a health care system with structure and organization similar to that in the VA may also contribute importantly to relieving disparities in health.