Homeless Persons

The VA has been focused on reducing the number of homeless Veterans nationally. However, it has been very difficult to increase the level of productive activities--including work, school, and training--for homeless-experienced Veterans (HEVs), even when the VA provides substantial case management and support services in addition to housing. The overarching aim of this proposed treatment project is to validate an innovative psychosocial intervention (a combination of Motivational Interviewing and Cognitive Behavioral Therapy; MI-CBT) that is designed to enhance motivation and increase productive community integration in Veterans who have experienced homelessness. The efficacy of this new intervention will be evaluated in a randomized control trial that includes 24 weeks of active treatment, and a follow up assessment, compared with a control condition. The results of the proposed study will have clinical and functional impact for Veterans by helping HEVs to achieve fuller community integration.

Providing healthcare to homeless people is a key and challenging task, both for society as a whole and for medical and psychosocial professionals. It must be noted that the standard healthcare system is hardly used, or can only be used to an insufficient extent, by homeless people, and therefore does not comprehensively reach this group. One low-threshold and acceptance-oriented service outside the standard care system is the Johanniter-Hilfsmobil, which was established on June 3, 2024, as an innovative approach to healthcare for homeless people in Augsburg and will be scientifically examined in the following study. The aim is to compare acute and chronic wounds in people experiencing housing emergencies who are treated by the Johanniter-Hilfsmobil with those of patients who attend the outpatient wound clinic at the Clinic for Vascular Surgery at Augsburg University Hospital. In addition, a saliva test will be carried out to estimate the amount and type of substance consumed, and a survey will be conducted among drug-dependent test subjects who present themselves either via the Johanniter-Hilfsmobil or via the substitution outpatient clinic of the Clinic for Psychiatry, Psychotherapy, and Psychosomatics at Augsburg District Hospital. Another focus of research is the quantitative and qualitative analysis of the psychosocial living situation and environmental influences on users of the Johanniter-Hilfsmobil.

The study design is a cohort study with a propensity score-matched control group and difference-in-difference analysis to evaluate intervention effectiveness. A hybrid type 1 effectiveness-implementation study framework is used that incorporates mixed methods to determine clinical effectiveness and explore implementation and participant well-being. Participants are selected based on their utilization of health services. Selection favoured those individuals with the most health service utilization. A control group will be created by selecting individuals from administrative hospital records that are propensity-score matched to the individuals in the treatment group (1:4 pair). The hybrid type 1 effectiveness-implementation study framework was used to guide the selection of study aims and outcomes to focus primarily on clinical effectiveness, while also exploring implementation-related factors. The primary objective of the study is to evaluate the impact of the Initiative on the number of emergency department visits and days spent in the hospital. The secondary objectives are to 2) evaluate the impact of the Initiative on program participants' health and well-being, 3) evaluate the implementation of the Initiative and assess program fidelity and barriers, and 4) to calculate the cost avoidance and cost-effectiveness of the Initiative.