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Risk Trajectories of Type 2 Diabetes-Related Microvascular Complications Across Racial/Ethnic Groups Among Older
Kaustubh V Parab1, Xiaotian Gao2, Neha P Gothe3
1Department of Cardiovascular and Thoracic Services, Aurora St. Luke's Medical Center, Milwaukee, WI, USA. Kaustubh.Parab@aah.org.
Introduction:
Type 2 diabetes mellitus (T2DM) microvascular complications are a major public health issue that disproportionately affects racial/ethnic minorities in the US. We aimed to address the limited understanding of racial/ethnic disparities in the longitudinal natural history of microvascular complications over eight years among older adults with T2DM in the US and Canada.
Methods:
From 10,251 participants in the Action to Control Cardiovascular Risk in Diabetes (ACCORD) (2003-2009) trial, we derived 6323 participants. We examined racial/ethnic disparities of composite microvascular complications, nephropathy, neuropathy, and retinopathy outcomes among adults of Black (n = 1099), White (n = 4071), and Other races (n = 1156), over 8 years. We used linear mixed-effects model with random intercept to account for intra-person correlation.
Results:
Our linear mixed-effects models displayed that the odds of composite microvascular complications for other race, which primarily consisted of Hispanic adults declined over a period of time [OR: 0.95 (0.93-0.99)]. The odds increased over time for Black [1.06 (1.03-1.09)] and White [1.11 (1.09-1.13)] adults (P < 0.001).
Conclusion:
Other race adults had a declining risk of microvascular complications over time. This decline was not observed among Black and White adults.
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