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Queen's University Belfast

Trauma-informed practice: principles and attrition

Abstract

dc:description.abstract

(1) Effects of baseline psychological symptom severity on dropout from trauma-focused cognitive behavior therapy for posttraumatic stress disorder: A meta-analysis<br/>Abstract:<br/>A meta-analysis was conducted to explore the impact of baseline psychological symptom severity on treatment dropout among adults administered Trauma-Focused Cognitive Behavior Therapy (TF-CBT) for Posttraumatic Stress Disorder (PTSD). Literature on how baseline psychological symptom severity influences attrition has produced inconsistent findings. No review to date has analyzed outcomes across studies. This meta-analysis compared baseline severity scores of, a) clinician-rated PTSD symptoms, b) self-report PTSD symptoms, and c) comorbid psychological symptoms, between TF-CBT completers and dropouts. Eligible studies were peer-reviewed, original outcome research of TF-CBT trials with adults meeting diagnostic criteria for PTSD. Data included standardized and quantitative baseline scores of clinician-rated and/or self-report PTSD and comorbid psychological symptom severity for treatment completers and dropouts. Searches were conducted of PsycINFO, Web of Science and SCOPUS and resulted in the identification of 12 studies with data received for 881 adult participants with a primary diagnosis of PTSD. Nine Randomized Control Trials (RCTs) and three non-RCTs were included. The interventions in the studies were guideline-recommended and evidence-based treatments of Prolonged Exposure, Cognitive Processing Therapy and Cognitive Behavioral Therapy for PTSD. Findings revealed participants dropping out of treatment had higher clinician-rated PTSD symptom severity at baseline than those who completed, with a significant and moderate effect size observed (g = -.50, 95% CI [-0.95, -0.04], p &lt; .05). No other findings were significant. The implications of inconsistent definitions of treatment dropout in included studies are discussed.<br/>(2) Reaching consensus on the principles of trauma-informed care in early intervention psychosis services: A Delphi study<br/>Abstract:<p class="MsoNormal">Aim: The current study sought to conceptualise and reach consensus on the principles of trauma-informed care in early intervention psychosis services. </p><p class="MsoNormal">Methods: A three-phase Delphi method was employed in this study.Experts included researchers, service providers and Experts by Experience in the area of early intervention in psychosis. In the initial qualitative phase,an expert panel (n = 57) shared their views on the constituents of trauma-informed care in early intervention psychosis services. Thematic analysis led to the generation of statement items. The expert panel were asked to rate the extent to which each statement item was an essential principle of trauma-informed care, leading to consensus of endorsed principles.</p><p class="MsoNormal">Results: Qualitative analysis of the first phase data led to the identification of 185 distinct statements which were compiled into an online questionnaire for the panel to rate in Phase 2. The Phase 2 questionnaire was completed by 42 experts, with the endorsement of seven principles. In Phase 3 the panel were invited to re-rate 24 statements. This phase was completed by 39 panel members, with the acceptance of a further nine principles. Consensus was achieved resulting in the endorsement of 16 essential principles of trauma-informed care.</p><p class="MsoNormal"/><p class="MsoNormal">Conclusions: The study offers novel understanding of the conceptualisation of trauma informed care in early intervention services and suggests principles which are widely agreed by experts in the field. There commendations may inform the adoption of consistently delivered trauma-informed care in early interventions in psychosis and facilitate the evaluation and development of services.</p><p class="MsoNormal"/>

Degree

thesis:*
Name dc:type.qualificationname
Doctor of Philosophy
Level dc:type.qualificationlevel
Doctoral Thesis
Grantor dc:publisher.institution
Queen's University Belfast
Year dc:date.issued
2020

Author and committee

dc:creator, dc:contributor.*
Author dc:creator
  • Mitchell, Sinead
Advisors dc:contributor.advisor
  • Hanna, Donncha
  • Mulholland, Ciaran

Subjects

dc:subject × 8

Rights

Language dc:language
eng

Identifiers

dc:identifier.*
Identifier
oai:pure.qub.ac.uk/portal:studenttheses/1efb654d-fdcb-47db-bcb6-e7f6d76e2433
OAI identifier oai:identifier
oai:pure.qub.ac.uk/portal:studenttheses/1efb654d-fdcb-47db-bcb6-e7f6d76e2433

Chain of custody

source
Harvested from
Queen's University Belfast
Base URL
pureadmin.qub.ac.uk/ws/oai
Last updated
2026-07-24
Source record
OAI-PMH GetRecord
citation

Mitchell, Sinead. Trauma-informed practice: principles and attrition. Doctoral Thesis thesis, Queen's University Belfast, 2020. https://pure.qub.ac.uk/en/studentTheses/1efb654d-fdcb-47db-bcb6-e7f6d76e2433