Chapter 7: Haemodialysis Dose

. This chapter summarises analyses of data submitted to the UK Renal Registry on urea reduction ratio (URR) in patients receiving haemodialysis in the UK in 2006. Sixty two of the seventy one centres providing treat-ment of adults in the UK submitted data on URR. Of these 62 centres, 46 returned URR data on 90 % or more of prevalent haemo-dialysis patients, 14 provided data on between 50 % and 90 % and 2 centres provided data on less than 50 % of prevalent patients.. Overall, 80 % of prevalent haemodialysis patients met the UK Renal Association stan-dard for URR (>65%) in 2006. There was a linear relationship between the proportion of patients in a given centre attaining this standard and the median URR of patients treated in that centre.. There has been an increase from 56 % in 1998 to 80 % in 2006 in the proportion of patients in the UK who achieved a URR>65%.. The haemodialysis dose (URR) delivered to patients who had just started dialysis treat-ment was lower than that of patients who had been treated for longer and increased further with time