Diabetes Mellitus and Renal Replacement Therapy in Italy: Prevalence, Main Characteristics and Complications

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Abstract
A number of reports on dialysis and transplantation for diabetic patients in the UK and USA are available. The aim of the present survey was to assess the prevalence, main characteristics and complications of diabetic patients treated by dialysis and transplantation in Italy. On 31 December 1987 in Italy, 1605 diabetic patients were being treated by dialysis or transplantation. The prevalence was 28 per million compared with the UK and the USA where the corresponding figures were 17 and 78 per million respectively. The annual incidence in 1987 was 9 per million (UK: 4 per million; USA: 33 per million). The mean age of the Italian diabetic patients was 59 years whereas that for British diabetic patients similarly evaluated was 48 years. Of the Italian diabetic patients 67% had NIDDM (UK: 22% USA: 50%). Haemodialysis was used in 81 % of the Italian patients, peritoneal dialysis in 14%, and only 5% were transplanted. This is in contrast to the UK where only 18% of the patients were treated by haemodialysis and 39% were transplanted. Amongst Italian patients who started RRT in 1987, 9% died within the year, and of the remainder 38% had severe bilateral visual impairment (UK 35%), 3% had had amputations (UK 6%), 7% had suffered from disabling strokes (UK 6%) and 7% had had a myocardial infarction (UK 17%). Before 31 December 1987 another 2.2% developed severe bilaterial visual impairment, 0.6% underwent amputations, 1.0% had a disabling stroke and 0.6% suffered from a myocardial infarction. The proportion of diabetic patients treated by RRT in Italy is twice that of the UK but only half that of the USA. The patients are on average 10 years older compared to the UK and are treated mostly by haemodialysis. In spite of this the proportion of patients with complications seems to be no greater than that reported for the younger UK population.