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The impact of personality disorders and personality traits on psychotherapy treatment outcome of eating disorders: a systematic review

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dc.contributor.authorSimpson, S.
dc.contributor.authorAzam, F.
dc.contributor.authorBrown, S.M.
dc.contributor.authorHronis, A.
dc.contributor.authorBrockman, R.
dc.date.issued2022
dc.description.abstractA significant proportion of those with eating disorders (EDs) do not respond to first-line treatments. This systematic review was conducted to identify whether personality disorders (PDs)/traits predict or moderate ED treatment outcomes and whether these outcomes were differentially influenced by ED or PD diagnostic subtypes, or treatment approach. A comprehensive systematic literature search was conducted using the PRISMA guidelines. A total of seven randomised controlled trials (RCTs) plus four follow-up studies were reviewed investigating the impact of PD and PD traits on treatment outcomes for EDs. The majority indicated that PD had some impact on treatment outcomes. Outcome measures and time-point measurements varied across studies. Included studies suggested that bulimia nervosa treatment outcomes were not hindered by co-morbidity of borderline PD; however, psychiatric impairment remained high at post-treatment and follow-up. Cluster C PDs were found to negatively impact treatment outcomes for binge ED and attrition rates for anorexia nervosa. Included studies suggested that interventions that addressed aspects of personality pathology showed greater main effects for ED treatment outcomes. There is an urgent need for future RCTs on ED treatments to include routine measures of core personality features to allow their impacts to be more thoroughly examined and for psychotherapies to be tailored accordingly.
dc.identifier.citationPersonality and Mental Health, 2022; 16(3):217-234
dc.identifier.doi10.1002/pmh.1533
dc.identifier.issn1932-8621
dc.identifier.issn1932-863X
dc.identifier.urihttps://hdl.handle.net/11541.2/28377
dc.language.isoen
dc.publisherJohn Wiley & Sons Ltd.
dc.rightsCopyright 2021 John Wiley & Sons, Ltd. Access Condition Notes: Accepted manuscript available after 1 January 2023
dc.source.urihttps://doi.org/10.1002/pmh.1533
dc.subjectcognitive-behavioural therapy
dc.subjectrandomised controlled-trial
dc.subjectanorexia-nervosa
dc.subjectbulimia-nervosa
dc.subjectinpatient treatment
dc.subjectfollow-up self-help
dc.subjectoutpatient psychotherapy
dc.subjectpremature termination
dc.subjectresponse prevention
dc.titleThe impact of personality disorders and personality traits on psychotherapy treatment outcome of eating disorders: a systematic review
dc.typeJournal article
pubs.publication-statusPublished
ror.fileinfo12243597260001831 13243617410001831 Open Access Postprint
ror.mmsid9916591651001831

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