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Predictors of microalbuminuria in individuals with IDDM. Pittsburgh Epidemiology of Diabetes Complications Study

Coonrod, B. A.; Ellis, D.; Becker, D. J.; Bunker, C. H.; Kelsey, S. F.; Lloyd, C. E.; Drash, A. L.; Kuller, L. H. and Orchard, T. J. (1993). Predictors of microalbuminuria in individuals with IDDM. Pittsburgh Epidemiology of Diabetes Complications Study. Diabetes Care, 16(10) pp. 1376–1383.

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OBJECTIVE--To examine the relationships between microalbuminuria and the development of overt diabetic nephrology, elevated blood pressure, and a more atherogenic lipid profile; and to identify risk factors for the development of microalbuminuria in individuals with IDDM. Microalbuminuria has been associated with the subsequent development of overt diabetic nephropathy in individuals with IDDM. It is associated with elevated blood pressure and a more atherogenic lipid profile, but the temporal relationship between the development of microalbuminuria and the changes in these factors is unclear. RESEARCH DESIGN AND METHODS--Baseline characteristics were examined in 256 individuals with IDDM who had normal albumin excretion (urinary AER < or = 20 micrograms/min in > or = 2 timed urine collections) and were re-examined 2 yr later. RESULTS--At follow-up, 24 had developed microalbuminuria (AER 20-200 micrograms/min in > or = 2 timed urine collections) and 1 had developed overt nephropathy (AER > 200 micrograms/min). Overall, the significant independent predictors of microalbuminuria were HbA1 (P < 0.001), low-density lipoprotein (P < 0.01), duration of IDDM (P < 0.05), and systolic blood pressure (P = 0.05). Sex-specific analyses showed HbA1, age, and baseline AER were particularly important for men; whereas, for women, the main predictors were duration of IDDM and triglycerides. Duration-specific analyses showed that HbA1 was an important predictor both for individuals with < and > 20-yr duration. Low-density lipoprotein cholesterol was more important for subjects with shorter durations; whereas triglycerides were important for those with longer durations. CONCLUSIONS--These results suggest that glycemic control, age or duration of IDDM, disturbed lipids, and possibly elevated blood pressure all may contribute to the development of microalbuminuria; and, further, that the adverse cardiovascular risk profile seen in individuals with overt nephropathy may begin to develop even before the detection of microalbuminuria.

Item Type: Journal Article
Copyright Holders: 1993 American Diabetes Association
ISSN: 0149-5992
Academic Unit/Department: Health and Social Care > Health and Social Care
Item ID: 19739
Depositing User: Katy Gagg
Date Deposited: 02 Feb 2010 14:19
Last Modified: 23 Oct 2012 09:06
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