Trauma and Treatment interference in forensic populations

Sillence, Annie ORCID: 0000-0003-0657-1077 (2024). Trauma and Treatment interference in forensic populations. University of Birmingham. Clin.Psy.D.

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Abstract

This thesis comprises four chapters. The first chapter is a meta-analysis of the prevalence of post traumatic stress disorder (PTSD) in female prison populations. Twenty articles were included, reporting a total of 7266 participants. The average PTSD prevalence was 24%.
Sensitivity analyses found lower rates of prevalence when diagnostic interviews were conducted by psychiatrists and clinical psychologists, compared to other professionals. The risk of bias found in some of the studies highlights a need for future research to use more
rigorous methodology to minimise risk of bias. Recommendations are made for increasing the diagnosis and treatment of PTSD in prisons to improve outcomes for those living with PTSD.
The second chapter is an exploratory analysis of predictors of successful and non-successful outcomes at HMP Grendon. A series of binary logistic regressions were conducted, and a clinical regression decision tree was calculated. The clinical regression tree was able to
predict non-successful outcomes with an overall accuracy of 97.6%, but successful outcomes with a 7.9% accuracy. Men who self-report high Antisocial Features, Treatment Rejection and Dominance, and low Social Self-Esteem, have a 98.1% chance of a non-successful outcome.
This predictive model holds significant clinical implications, enabling the identification of treatment-interfering factors. This information could be used to adjust treatment accordingly and reduce the number of people that leave Grendon with a non-successful outcome. Further
research is required to understand common psychometric profiles that accurately predict successful outcomes.
The third and fourth chapters consist of press releases for the first and second chapters.

Type of Work:

Thesis (Doctorates > Clin.Psy.D.)

Award Type:

Doctorates > Clin.Psy.D.

Supervisor(s):