期刊
JOURNAL OF DIABETES
卷 9, 期 2, 页码 200-207出版社
WILEY
DOI: 10.1111/1753-0407.12403
关键词
blood pressure; diabetes mellitus; diabetic retinopathy; HbA1c
BackgroundThe aim of the present study was to examine the association between variability in HbA1c or systolic blood pressure (SBP) and diabetes-specific moderate retinopathy in Asians with type 2 diabetes (T2D). MethodsA retrospective study was conducted of 172 cases of moderate diabetic retinopathy (DR) cases and 226 controls without DR, matched for age, sex, and ethnicity. Serial HbA1c and SBP (range 3-6 readings) over the 2years prior to photographic screening of DR were collected. Intrapersonal mean and SD values for HbA1c (iM-HbA1c and iSD-HbA1c) and SBP (iM-SBP and iSD-SBP) were derived. Moderate DR was assessed from digital retinal photographs and defined as levels >43 using the Early Treatment Diabetic Retinopathy Study scale. ResultsCases of moderate DR had higher iM-HbA1c (8.2% vs 7.3%; P=0.001), iSD-HbA1c (1.22 vs 0.64; P=0.001), iM-SBP (136.8 vs 129.6mmHg; P=0.001) and iSD-SBP (13.3 vs 11.1; P=0.002) than controls. In the multivariate regression model adjusted for age, gender, ethnicity, duration of diabetes, SBP, and HbA1c, iM-HbA1c and iM-SBP were significantly associated with moderate DR (odds ratio [OR] 1.80, 95% confidence interval [CI] 1.37-2.36; and OR 1.03, 95% CI 1.01-1.05, respectively). Neither iSD-HbA1c nor iSD-SBP were associated with moderate DR. When stratified by HbA1c <7%, only iSD-SBP remained significantly associated with moderate DR (OR 1.11, 95% CI 1.01-1.21). ConclusionIn a cohort of Asian patients with T2D, both higher mean HbA1c levels and SBP, but not their variability, were associated with moderate DR. Among those with good glycemic control, wider variability of SBP is associated with moderate DR.
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