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  • Title: Is increasing urinary albumin a better marker for microvascular than for macrovascular complication of type 2 diabetes mellitus?
    Author: Herrera-Pombo JL, Aguilar-Diosdado M, Hawkins F, Campos MM, Moreno A, Garcia-Hernandez A, Castro E, García-Doncel LG, Serraclara A, Sánchez-Malo C, Escobar-Jiménez F.
    Journal: Nephron Clin Pract; 2005; 101(3):c116-21. PubMed ID: 16015000.
    Abstract:
    AIMS: The aims of the study were to evaluate the prevalence of increased urinary albumin excretion (UAE) and associated cardiovascular risk factors and vascular diabetes complications in patients with type 2 diabetes mellitus (DM). METHODS: We studied 975 patients in a cross-sectional design from 1998 to 2000. Frequency of micro- and macroalbuminuria, and their associations with cardiovascular risk factors and vascular DM complications, were examined. RESULTS: Prevalence of increased UAE was 28.5% (18.3% micro- and 10.2% macroalbuminuria). Body mass index (BMI) (only females) and hemoglobin (Hb)A1c significantly correlated with macroalbuminuria (p = 0.034, p = 0.027, respectively), while high blood pressure (diastolic) was associated with microalbuminuria (p = 0.008). Diabetes duration, high systolic blood pressure, total cholesterol, high-density lipoprotein (HDL) cholesterol, low-density lipoprotein (LDL) cholesterol and triglycerides were significantly correlated with both micro- and macroalbuminuria. Increased UAE was associated with neuropathy (relative risk (RR) 2.12, confidence interval (CI) 1.07-4.19), retinopathy (RR 2.19, CI 1.76-2.74) and hypertension (RR 2.91, CI 1.77-4.78), but not with cardiovascular disease, high cholesterol and peripheral vascular disease. In the multiple logistic regression analysis, a significant association of albuminuria was found with diabetes duration (odds ratio (OR) 1.59, CI 0.98-2.58; p < 0062), hypertension (OR 3.42, CI 2.22-5.27; p < 0.0001), low HDL cholesterol (OR 1.78, CI 1.31-2.43; p < 0.0003), current smoking status (OR 2.19, CI 1.32-3.64; p < 0.0024), and increased serum creatinine (OR 11.16, CI 5.7-21.7; p < 0.0001). CONCLUSION: Prevalence of increased UAE was similar to that described in other geographically close populations. The stronger association found with microvascular diabetes complications suggests that increased UAE is a better predictor for renal damage than for cardiovascular disease in this type 2 DM population.
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