UK Renal Registry 16th annual report: chapter 6 demographics and outcomes of patients from different ethnic groups on renal replacement therapy in the UK.

Introduction: This chapter describes the patient characteristics and outcomes for the three main ethnic groups (White, South Asian, Black) on renal replacement therapy (RRT) in the UK.

Methods: Data on patients (>18 years old) from all 71 UK adult renal centres starting RRT between 2003 and 2012 were considered. Scottish centres were excluded due to poor ethnicity data.

Results: The age-gender standardized incidence ratio of RRT was higher (2-3 times) in regions with a high ethnic minority population compared to those with a low ethnic minority population. South Asian and Black patients were significantly younger than Whites; had more diabetes causing established renal failure and lived in more deprived areas. The proportion of patients with at least one comorbidity was greater amongst White patients compared to South Asian and Black patients. The proportion of patients starting PD and having preemptive transplantation was lower amongst both ethnic minorities. The attainment of various laboratory standards was comparable or better for the ethnic minorities compared to White patients except for calcium standard attainment (for South Asians) and haemodialysis dose attainment (for Black patients). Compared to White patients, both ethnic minorities had similar rates of listing for deceased donor kidney transplantation but had lower rates of transplantation once wait-listed, and lower rates of living kidney donor transplantation. One and five year kidney allograft adjusted survival was poorer for Black patients but similar for South Asians compared to White patients. Black and South Asian patients had a better adjusted survival on dialysis compared to White patients.

Conclusions: The persistent high incidence of RRT, the better survival on dialysis and the poor access to kidney transplantation for South Asian and Black patients and early allograft loss for Black patients will impose a disproportionate demand on dialysis provision in those areas with a high ethnic minority population.