Abstract
Background Homelessness is a recognized risk factor for the development of kidney failure. However, the risk of requiring renal replacement therapy (RRT) in homeless populations remains unknown. Furthermore, access to and provision of RRT for homeless populations have not been described. Methods We performed a retrospective study of all patients who newly commenced in-centre haemodialysis at St. James’s Hospital, Dublin, from January 2021 to December 2023. Housing status was captured using registered addresses and a review of social workers’ assessments. Homelessness was defined according to the European Typology on Homelessness and Housing Exclusion Criteria. Using publicly available census and homelessness data, we estimated the risk of commencing haemodialysis among homeless and non-homeless populations in the catchment area. Results The overall prevalence of homelessness among adults in the catchment area was approximately 2000/270,000 (0.74%). Of the 74 patients who commenced haemodialysis over the 3-year period, 13 (17.6%) were homeless. There was a significant difference in the incidence of commencing haemodialysis between non-homeless and homeless individuals in the catchment area (p<0.001, chi-square test). Among patients who commenced haemodialysis, the mean age was 53 years in homeless patients and 62 years in non-homeless patients (p<0.05, one-way ANOVA). 3/13 homeless patients (23%) had received nephrology healthcare at least 3 months prior to haemodialysis, compared with 39/61 non-homeless patients (64%) (p <0.05, chi-square). Of the three homeless patients who had received three months of nephrology healthcare prior to haemodialysis, all three patients commenced haemodialysis via an arteriovenous fistula. Mental health comorbidities were more frequent among homeless patients than among non-homeless patients (23% versus 8%) (not statistically significant), as were substance use disorders (38% versus 7%) (p<0.05, chi-squared test). Conclusion The incidence of kidney failure requiring haemodialysis was higher in homeless adults than in their non-homeless peers. Homeless patients were younger and started haemodialysis more urgently. There is an unmet need for nephrology healthcare for the homeless population.