This report summarizes data for dialysis and transplant patients up to the end of 1995. We estimate coverage to be about 30% of dialysis patients and near complete ascertainment of transplant patients. On the 31 December 1995, there were 2224 patients on renal replacement therapy (RRT), comprising 50% on haemodialysis (HD), 12% on continuous ambulatory peritoneal dialysis (CAPD) and 38% with functioning transplants. The prevalence rate for dialysis was 68 per million population (p.m.p.) and that of transplant 42 p.m.p. The new dialysis acceptance rate was 15 p.m.p. and transplant 5 p.m.p. Forty‐seven per cent of new patients had unknown primary renal disease and 30% was due to non‐insulin dependent diabetes mellitus. Mean age of prevalent HD patients was 42 years, CAPD 46 years and 34 years for transplant. Patient survival on CAPD was 85% at 1 year and for HD was 88%. One year transplant patient survival was 94% and graft survival 91%.
OBJECTIVE -Asia is predicted to have the largest population of patients with diabetes who are at high risk for renal disease. In the Reduction of Endpoints in NIDDM with the Angiotensin II Antagonist Losartan (RENAAL) study, ϳ17% of patients were Asians. In this subgroup analysis, we examined the characteristics, response, and adherence to treatment of the Asian population, as well as their baseline predictors of risk of renal end points.
RESEARCH DESIGN AND METHODS -A total of 252Asian patients were enrolled in the RENAAL study, which compared losartan (50 mg titrated to 100 mg) to placebo in addition to conventional antihypertensive medications in type 2 diabetic patients with nephropathy. Mean follow-up was 3.2 years. The effect of losartan therapy on renal and cardiovascular outcomes was examined, and baseline predictors of risk were determined using a Cox proportional hazards model with prespecified baseline covariates.RESULTS -Losartan reduced the risk of the primary composite end point composed of a doubling of serum creatinine, end-stage renal disease, or all-cause mortality in Asian patients by 35% (P ϭ 0.02). No difference between losartan and placebo was observed for the cardiovascular composite outcomes. Losartan reduced the level of proteinuria by 47% (P Ͻ 0.001) and rate of decrease in renal function by 31% (0.0074). Discontinuations were lower in the losartan-treated patients. The strongest baseline predictors of risk of renal end points were proteinuria (hazard ratio 1.42, P Ͻ 0.0001) and low Hb (0.81, P Ͻ 0.0001).CONCLUSIONS -In this subgroup analysis of the RENAAL study, losartan conferred significant renal benefits and was well tolerated in Asian patients with type 2 diabetes and clinical nephropathy. Baseline proteinuria and low Hb were strong predictors of risk of renal outcomes.
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