Impact of Late Complications in Type 2 Diabetes in a Dutch Population

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Abstract
The prevalence of late complications was determined in four general practices in a representative group of 137 patients with Type 2 diabetes and a control group of 128 non‐diabetic individuals. Retinopathy was found in 35 % of all diabetic patients, with the same prevalence below and above the age of 70 years. Microalbuminuria was found in 42 % of diabetic patients and in 22 % of the control group (p < 0.001). Above 70 years of age microalbuminuria was found with increasing frequency in the control group and was not significantly higher in the diabetes group. Serum creatinine was the same in the diabetic patients and the control group. Peripheral neuropathy was found frequently in the diabetes group, but was not uncommon in the control group (abnormal temperature sensation 63 vs 49 % (p < 0.05), abnormal vibration perception 53 vs 33 % (p < 0.001), absent tendon reflex 62 vs 21 % (p < 0.001)). Above age 70 years there was again a reduction in the difference in prevalence of neuropathy between the diabetes and control groups. Ischaemic heart disease was found more frequently in the diabetes group, but only below 70 years of age (32 % of diabetic patients and 14 % of the control group with ischaemic changes on ECG (p < 0.01)). Above that age 46 % of the diabetes group and 45 % of the control group had ECG signs of ischaemic heart disease.