Self-harm in people experiencing homelessness: investigation of incidence, characteristics and outcomes using data from the Multicentre Study of Self-Harm in England

Examining the Role of Self-Harm in the Relationship between Emergency Department Service Utilization and Trauma-Induced Homelessness among Homeless Individuals in Texas

Homelessness is a complex public health problem in the United States. Current or ongoing history of trauma among individuals adds to the complexity and challenges of homelessness. Our study assessed the moderating role of self-harm in the association between emergency department (ED) service utilization and trauma-induced homelessness (TIH) among adults in Texas. Homeless adults (N = 282) who completed their baseline Vulnerability Index Service Prioritization Decision Assistance Prescreen Tool survey between February 2021 and February 2022 at a Local Mental Health Authority in Texas were selected. The outcome variable, TIH, was assessed by current period of homelessness due to experiencing trauma or abuse. The main independent variable was ED utilization, while self-harm in the past year was assessed as the moderating variable. A multivariate logistic regression with a moderation analysis was conducted while adjusting for the covariates. Individuals who utilized ED services and engaged in self-harm and risky behaviors had greater odds of experiencing current period of TIH. Male respondents were less likely to experience TIH. Finally, engaging in self-harm significantly moderated the association between ED service use and TIH. This study may help inform efforts to develop tailored interventions and promote resilience-based approaches to improve health outcomes among individuals experiencing homelessness due to TIH.

The burden of attempted hanging and drowning presenting to hospitals in Ireland between 2007 and 2019: a national registry-based study

PURPOSE

To measure the impact of hospital-treated self-harm by hanging and drowning in Ireland in 2007-2019 and identify risk factors for these methods of self-harm.

METHOD

Data on all self-harm presentations to Irish hospitals between 2007 and 2019 were obtained from the National Self-Harm Registry Ireland, a national self-harm surveillance system. Multinomial regression was used to explore factors associated with attempted hanging and drowning.

RESULTS

The age-standardised incidence rate of attempted hanging and drowning increased by 126% and 45%, respectively, between 2007 and 2019. The incidence of both methods was highest among young people aged 15-24 years. The odds of presenting to hospital for attempted hanging were highest in males (aOR 2.85, 95% CI 2.72-3.00), people experiencing homelessness (aOR 1.32, 95% CI 1.16-1.49) and individuals living in the capital, Dublin (aOR 1.23, 95% CI 1.17-1.29). The odds of presenting for attempted drowning were highest in males (aOR 1.68, 95% CI 1.58-1.78) and people experiencing homelessness (aOR 2.69, 95% CI 2.41-2.99).

CONCLUSION

The incidence of hospital-treated self-harm by hanging and drowning is increasing in Ireland and is highest among adolescents and young adults. Males and people experiencing homelessness may be at highest risk and warrant targeted preventive interventions.

Health service use and predictors of high health service use among adults experiencing homelessness: a retrospective cohort study

OBJECTIVE

To describe the characteristics and cost of health service use of a cohort of 2,140 people attending homeless hostel clinics, and identify predictors of high health service use and time to readmission.

METHOD

A retrospective cohort study of 2,140 adults who attended a homeless hostel clinic and were hospitalised in New South Wales (NSW) using linked clinic, health and mortality data from 1 July 2008 to 30 June 2021. Multivariable logistic regression examined predictors of high health service users.

RESULTS

There were 27,466 hospital admissions, with a median cost of A$81,481 per person, and a total cost of A$548.2 million. Twenty per cent of the cohort were readmitted within 28 days and 27.4% were classified as high users of health services. Factors associated with high use were age ≥45 years, female (AOR: 1.52; 95%CI 1.05-2.22), the presence of a mental disorder, substance use disorder (AOR: 1.36; 95%CI: 1.03-1.82), or if the person had been homeless for >1 year (AOR: 1.31; 95%CI: 1.06-1.62). Conclusions and implications for public health: The high health costs generated by homeless adults confirm the need to develop models of supported housing with a focus on integrated care, improved referral pathways and better coordination with community-based support agencies.