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In diabetes mellitus cardiovascular mortality among patients with increased urinary albumin excretion seems to be higher than in patients with normal urinary albumin excretion. Therefore we investigated blood pressure, total cholesterol, fibrinogen and in vivo platelet adhesion in 61 patients with type I (insulin-dependent) diabetes, 39 without complications, such as retinopathy or proteinuria and 22 with proteinuria and slightly elevated serum creatinine. The two groups had similar age, sex, diabetes duration and glucose control. Blood pressure, total cholesterol, fibrinogen and in vivo platelet adhesion were all significantly elevated in patients with proteinuria (p less than 0.01), whereas these parameters were normal in the uncomplicated diabetic patients, independent of diabetes duration. The mortality of cardiovascular disease during 20 years' follow-up was significantly higher among patients with proteinuria compared with patients without proteinuria (p less than 0.001), indicating that these risk factors contribute to the increased cardiovascular mortality in patients with clinical nephropathy.
Valdorf-Hansen et al. (Mon,) studied this question.