Post-traumatic stress disorder (PTSD) is a mental health diagnosis resulting in symptoms which make daily functioning challenging and higher cognitive ability often troublesome, resulting in a diminished quality of life that requires specific intervention to improve. The objective of this audit was to evaluate whether evidence based best practice is being met, regarding the treatment of PTSD in 62 individuals experiencing inner city homelessness. The overarching aim of this research was to shine a light on some of the prominent obstacles that are preventing access to healthcare, particularly in a population that historically struggle to raise their hand and ask for help.

The method used was a classic audit-cycle structure, using quantitative and qualitative measures to visualise outcomes. Data were gathered through retrospective analysis of patient documentation, communications between services and records dating back to each original diagnosis.

The results indicated that best practice in the form of trauma-focused therapies is not occurring as outlined by national guidance within this sample, but instead medication is acting a crutch, allowing individuals to cope with daily life. Over the 13-year period, 11% of individuals received some form of psychological therapy. Possible reasons for this suboptimal outcome were investigated, resulting in recognition of an array of barriers faced by the homeless population in accessing required therapeutic intervention. Results indicated the most common reasons for unsuccessful therapy were lack of contact or engagement by the individual, discharge on the grounds of substance misuse, then lack of record or follow-up within the service records.

In conclusion, barriers to the delivery of effective therapy are multifactorial and recommendations have been made here to promote integration of care across services, possibly providing an alternative pathway for these patients. Forward thinking models of psychologically informed environments may be useful to deliver treatment to people experiencing homelessness, in way that is accessible and approachable to them. Additionally, it has been recognised that improvement in communication across services regarding mental health interventions is required, to allow continual evaluation and improvement of care in the area. Finally, the question was raised whether current guidance is suitable and generalisable to the homeless population, particularly those under complex circumstances and co-morbid with substance or alcohol misuse. All recommendations have been made in the aim of improving provision of care for this population, to avoid deepening of already established health inequalities and to combat the inverse care law.