Introduction: In 2017, we published standardised mortality ratios (SMRs) for individuals experiencing homelessness over the five-year period from 2011 to 2015. The findings revealed exceptionally high mortality rates, with SMRs 3–10 times higher for homeless men and 6–10 times higher for homeless women compared to the general population. Drug and alcohol-related deaths were identified as the leading cause, accounting for 38.4% of deaths within this group.
Objective: A decade later, this study aims to calculate SMRs for individuals experiencing homelessness in the Dublin region over a 10-year period (2015–2025) and examine the leading causes of death in this population.
Setting: Mortality data were routinely collected through homeless services reporting deaths among individuals in their care across the Dublin Homeless Region. These data were supplemented and validated with records from the Dublin Coroner’s Office.
Methods: Mortality data for individuals experiencing homelessness from 2011 to 2025 will be acquired from the HRB. These data will be cross-referenced and validated against NDTRS records. The analysis will compare SMRs for individuals experiencing homelessness with those of the general population, with causes of death categorized using ICD codes.
Results: SMRs for individuals experiencing homelessness will be reported, highlighting disparities with the general population. The primary causes of death will also be detailed.
Conclusion: Building on our earlier findings, this prospective study aims to provide a clearer understanding of mortality trends and causes of death among individuals experiencing homelessness over the past decade. While outcomes remain unknown, this work is expected to offer valuable insights that will be critical in informing the design and implementation of interventions addressing housing insecurity, substance use, and broader health inequities. By continuing to investigate these disparities, we hope to contribute to efforts that reduce premature mortality and improve the overall wellbeing of individuals experiencing homelessness.