OBJECTIVE -We aimed to update the epidemiology of type 1 and type 2 diabetic patients among the incident end-stage renal disease (ESRD) population in Australia and New Zealand (ANZ) and to determine whether outcome is worse for diabetic women, as described in the general population.RESEARCH DESIGNS AND METHODS -All resident adults of ANZ who began renal replacement therapy (RRT) from 1 April 1991 to 31 December 2005 were included using data from the ANZ Dialysis and Transplant Registry. Incidence rates, RRT, and survival were analyzed. Risk factors for death were assessed using Cox regression.RESULTS -The study included 1,284 type 1 diabetic (4.5%), 8,560 type 2 diabetic (30.0%), and 18,704 nondiabetic (65.5%) patients. The incidence rate of ESRD with type 2 diabetes increased markedly over time (ϩ10.2% annually, P Ͻ 0.0001). In patients aged Ͻ70 years, rates of renal transplantation in type 1 diabetic, type 2 diabetic, and nondiabetic patients were 41.8, 6.5 (P Ͻ 0.0001 vs. other patients), and 40.9% (P ϭ 0.56 vs. type 1 diabetic patients), respectively. Compared with nondiabetic patients, the adjusted hazard ratio (HR) for death was 1.64 (P Ͻ 0.0001) in type 1 diabetes and 1.13 (P Ͻ 0.0001) in type 2 diabetes. Survival rates per 5-year period improved by 6% in type 1 diabetic patients (P ϭ 0.36), by 9% in type 2 diabetic patients (P Ͻ 0.0001), and by 5% in nondiabetic patients (P ϭ 0.001). In type 2 diabetic patients aged Ն60 years, the adjusted HR for death in women versus men was 1.19 (P ϭ 0.0003).CONCLUSIONS -The incidence of ESRD with type 2 diabetes increased markedly. Despite high access to renal transplants, type 1 diabetic patients had a poor prognosis after starting RRT. Survival improved significantly in type 2 diabetic patients during the study period. Older type 2 diabetic women had a worse prognosis than older type 2 diabetic men.
Diabetes Care 30:3070-3076, 2007D iabetes is associated with high mortality in the general population (1,2). Worse prognosis has also been reported in diabetic women compared with diabetic men (3,4). End-stage renal disease (ESRD) in patients with type 2 diabetes has increased dramatically worldwide during the last few decades, and diabetes is associated with worse survival among patients undergoing dialysis (5-7).Nevertheless, a study in Denmark showed that the survival rate of patients with ESRD who had type 2 diabetes has improved during the 1990 -2005 period (8). Available studies on patients with ESRD who have type 1 and type 2 diabetes have shortcomings because analyses were limited to patients with diabetic nephropathy (6 -7), did not differentiate the two types of diabetes (9), were short-term (10), or were based on single-center experiences (11).The aim of the present study was to examine the epidemiology and long-term survival of patients with incident ESRD by diabetes status (type 1 diabetes, type 2 diabetes, and no diabetes) in Australia and New Zealand (ANZ) and to determine whether outcomes were different between the sexes among patients with diabetes.
RESE...