In a retrospective survey, we show that the incidence of end-stage renal disease (ESRD) is significantly raised among immigrant Indo-Asians referred to two UK renal units (p < 0.001). In addition to the expected increase in diabetic nephropathy, glomerulonephritis and chronic pyelonephritis are also seen more frequently in Indo-Asians. The most striking finding was a five-fold increase in ESRD of uncertain cause (p < 0.001) presenting with small smooth kidneys, which was strongly associated with active, mostly non-renal tuberculosis. The causes of this generalized increased susceptibility to renal disease are unknown. These findings have important implications both for primary health care screening and for planning the provision of renal replacement therapy.
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