{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T01:11:22Z","timestamp":1760058682900,"version":"build-2065373602"},"reference-count":32,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2025,4,17]],"date-time":"2025-04-17T00:00:00Z","timestamp":1744848000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Reports"],"abstract":"<jats:p>Background and Clinical Significance: Evaluations of interventions for sexual orientation obsessive\u2013compulsive disorder (SO-OCD) are rare. This study therefore evaluated the effectiveness of cognitive analytic therapy (CAT). Case Presentation: A 28-year-old heterosexual male presented with SO-OCD in the form of obsessions concerning his sexual identity and associated avoidance and reassurance-seeking compulsions. The evaluation was a quasi-experiential A\/B single-case experimental design (SCED) with follow-up of the eight-session CAT intervention. The SCED had three phases: baseline \u2018A\u2019 (two sessions; 21 days), active treatment \u2018B\u2019 (six sessions; 56 days) and follow-up (one session; 44 days). There were seven daily rated idiographic outcome measures (intrusion count as the control, a compulsion count and then intensity measures of checking, worrying, generating evidence, shame and anxiety). Four nomothetic outcome measures (including a primary outcome measure of SO-OCD) were collected at assessment, end of treatment and follow-up. Generalised logistical models were fitted to the idiographic outcomes. Six of the seven idiographic measures responded to treatment, indicating an effective intervention. Idiographic change was non-linear and synchronised with specific psychotherapeutic actions and there was no evidence of relapse. There was a clinically significant and reliable pre\u2013post reduction in SO-OCD with progress sustained over the follow-up period. Conclusions: Overall, the study indicates that CAT was an effective intervention for the SO-OCD. The study methodology is critiqued and guidance on SO-OCD treatment is provided.<\/jats:p>","DOI":"10.3390\/reports8020051","type":"journal-article","created":{"date-parts":[[2025,4,17]],"date-time":"2025-04-17T00:48:46Z","timestamp":1744850926000},"page":"51","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Treating Sexual Orientation Obsessive-Compulsive Disorder with Cognitive Analytic Therapy: Case Report and Quasi-Experimental Outcome Evaluation"],"prefix":"10.3390","volume":"8","author":[{"given":"Ese-Oghene","family":"Osivwemu","sequence":"first","affiliation":[{"name":"Department of Clinical and Applied Psychology, University of Sheffield, Sheffield S1 2LT, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3808-4134","authenticated-orcid":false,"given":"Melanie","family":"Simmonds-Buckley","sequence":"additional","affiliation":[{"name":"Department of Clinical and Applied Psychology, University of Sheffield, Sheffield S1 2LT, UK"},{"name":"Inpatient Wards, Rotherham Doncaster and South Humber NHS Foundation Trust, South Yorkshire S26 4TH, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chris","family":"Gaskell","sequence":"additional","affiliation":[{"name":"Department of Clinical and Applied Psychology, University of Sheffield, Sheffield S1 2LT, UK"},{"name":"Neuropsychology Department, North Staffordshire Combined Healthcare NHS Trust, Stoke-on-Trent ST4 8HH, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6034-4495","authenticated-orcid":false,"given":"Stephen","family":"Kellett","sequence":"additional","affiliation":[{"name":"Department of Clinical and Applied Psychology, University of Sheffield, Sheffield S1 2LT, UK"},{"name":"Inpatient Wards, Rotherham Doncaster and South Humber NHS Foundation Trust, South Yorkshire S26 4TH, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2025,4,17]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"365","DOI":"10.1159\/000348582","article-title":"Symptom dimensions in obsessive-compulsive disorder: Phenomenology and treatment outcomes with exposure and ritual prevention","volume":"46","author":"Williams","year":"2013","journal-title":"Psychopathology"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"229","DOI":"10.1080\/16506073.2017.1343380","article-title":"Association splitting of the sexual orientation-OCD-relevant semantic network","volume":"47","author":"Ching","year":"2018","journal-title":"Cogn. Behav. Ther."},{"key":"ref_3","first-page":"104","article-title":"Specific and general cognitive predictors of Sexual Orientation-Obsessive Compulsive Disorder","volume":"16","author":"Melli","year":"2018","journal-title":"J. Obs. -Compuls. Relat. Disord."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"53","DOI":"10.1177\/1534650110393732","article-title":"Treatment of sexual-orientation obsessions in obsessive-compulsive disorder using exposure and ritual prevention","volume":"10","author":"Williams","year":"2011","journal-title":"Clin. Case Stud."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"783","DOI":"10.1007\/s10508-014-0421-0","article-title":"Domains of distress among people with sexual orientation obsessions","volume":"44","author":"Williams","year":"2015","journal-title":"Arch. Sex. Behav."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"83","DOI":"10.1016\/j.psychres.2007.07.010","article-title":"Further development of YBOCS dimensions in the OCD Collaborative Genetics study: Symptoms vs. categories","volume":"160","author":"Pinto","year":"2008","journal-title":"Psychiatry Res."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"156","DOI":"10.1016\/j.psychres.2010.10.019","article-title":"Sexual orientation obsessions in obsessive\u2013compulsive disorder: Prevalence and correlates","volume":"187","author":"Williams","year":"2011","journal-title":"Psychiatry Res."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"431","DOI":"10.1016\/j.beth.2016.03.004","article-title":"Assessing sexual orientation\u2013related obsessions and compulsions in Italian heterosexual individuals: Development and validation of the Sexual Orientation Obsessive-Compulsive Scale (SO-OCS)","volume":"47","author":"Melli","year":"2016","journal-title":"Behav. Ther."},{"key":"ref_9","first-page":"VD01","article-title":"Homosexual obsessive compulsive disorder (HOCD): A rare case report","volume":"9","author":"Bhatia","year":"2015","journal-title":"J. Clin. Diagn. Res."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"164","DOI":"10.1016\/j.rehab.2017.12.002","article-title":"Single-case experimental designs to assess intervention effectiveness in rehabilitation: A practical guide","volume":"61","author":"Evans","year":"2018","journal-title":"Ann. Phys. Rehabil. Med."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"27","DOI":"10.1177\/0145445518791255","article-title":"Applying the generalized logistic model in single case designs: Modelling treatment-induced shifts","volume":"44","author":"Verboon","year":"2020","journal-title":"Behav. Modif."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"79","DOI":"10.1080\/10503307.2019.1566676","article-title":"The dose-response effect in routinely delivered psychological therapies: A systematic review","volume":"30","author":"Robinson","year":"2020","journal-title":"Psychother. Res."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"e1","DOI":"10.2522\/ptj.2016.96.7.e1","article-title":"The Single-Case Reporting Guideline In BEhavioural Interventions (SCRIBE) 2016 Statement","volume":"96","author":"Tate","year":"2016","journal-title":"Phys. Ther."},{"key":"ref_14","doi-asserted-by":"crossref","unstructured":"Ryle, A., and Kerr, I.B. (2020). Introducing Cognitive Analytic Therapy: Principles and Practice of a Relational Approach to Mental Health, John Wiley & Sons.","DOI":"10.1002\/9781119375210"},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"151","DOI":"10.1111\/papt.12306","article-title":"Developing a competence framework for cognitive analytic therapy","volume":"94","author":"Parry","year":"2021","journal-title":"Psychol. Psychother. Theory Res. Pract."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"621","DOI":"10.1111\/papt.12390","article-title":"The effectiveness of cognitive analytic therapy for bipolar affective disorder: A co-produced single subject withdrawal design with extended follow up (A1\/B\/A2\/C-FU)","volume":"95","author":"Kellett","year":"2022","journal-title":"Psychol. Psychother. Theory Res. Pract."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"598","DOI":"10.1177\/0145445504272974","article-title":"An alternative method for quantitative synthesis of single-subject researches: Percentage of data points exceeding the median","volume":"30","author":"Ma","year":"2006","journal-title":"Behav. Modif."},{"key":"ref_18","unstructured":"Wendt, O. (2009, January 18). Calculating effect sizes for single-subject experimental designs: An overview and comparison. Proceedings of the Ninth Annual Campbell Collaboration Colloquium, Oslo, Norway."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"357","DOI":"10.1016\/j.beth.2008.10.006","article-title":"An improved effect size for single-case research: Nonoverlap of all pairs","volume":"40","author":"Parker","year":"2009","journal-title":"Behav. Ther."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"194","DOI":"10.1177\/00224669070400040101","article-title":"Percentage of all non-overlapping data (PAND) an alternative to PND","volume":"40","author":"Parker","year":"2007","journal-title":"J. Spec. Educ."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"221","DOI":"10.1177\/01454455980223001","article-title":"Summarizing single-subject research: Issues and applications","volume":"22","author":"Scruggs","year":"1998","journal-title":"Behav. Modif."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"329","DOI":"10.1016\/S0304-4076(96)01818-0","article-title":"An R-squared measure of goodness of fit for some common nonlinear regression models","volume":"77","author":"Cameron","year":"1997","journal-title":"J. Econom."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"12","DOI":"10.1037\/0022-006X.59.1.12","article-title":"Clinical significance: A statistical approach to defining meaningful change in psychotherapy research","volume":"59","author":"Jacobson","year":"1991","journal-title":"J. Consult. Clin. Psychol."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"606","DOI":"10.1046\/j.1525-1497.2001.016009606.x","article-title":"The PHQ-9: Validity of a brief depression severity measure","volume":"16","author":"Kroenke","year":"2001","journal-title":"J. Gen. Intern. Med."},{"key":"ref_25","unstructured":"American Psychiatric Association (2000). Diagnostic and Statistical Manual of Mental Disorders, 4th ed., Text Revision, American Psychiatric Association."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"744","DOI":"10.1111\/j.1365-2850.2011.01735.x","article-title":"Quality of Life Enjoyment and Satisfaction Questionnaire\u2013short form for quality of life assessments in clinical practice: A psychometric study","volume":"18","author":"Stevanovic","year":"2011","journal-title":"J. Psychiatr. Ment. Health Nurs."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"206","DOI":"10.1037\/1040-3590.10.3.206","article-title":"The validation of a new obsessive\u2013compulsive disorder scale: The Obsessive\u2013Compulsive Inventory","volume":"10","author":"Foa","year":"1998","journal-title":"Psychol. Assess."},{"key":"ref_28","unstructured":"Pustejovsky, J.E., and Swan, D.M. (2021, January 01). SingleCaseES: A Calculator for Single-Case Effect Sizes. R Package Version 0.4.4. Available online: https:\/\/CRAN.R-project.org\/package=SingleCaseES."},{"key":"ref_29","unstructured":"(2018). R Core Team R: A Language and Environment for Statistical Computing, R Foundation for Statistical Computing. Available online: https:\/\/www.r-project.org."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"224","DOI":"10.1016\/j.urology.2015.09.028","article-title":"Health-related quality of life in children with prune-belly syndrome and their caregivers","volume":"87","author":"Arlen","year":"2016","journal-title":"Urology"},{"key":"ref_31","first-page":"197","article-title":"The effectiveness of cognitive analytic therapy on the severity of symptoms in patients with obsessive-compulsive disorder","volume":"1","author":"Rezaei","year":"2013","journal-title":"Pract. Clin. Psychol."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"116198","DOI":"10.1016\/j.psychres.2024.116198","article-title":"A systematic scoping review of the literature on sexual orientation obsessive compulsive disorder (SOOCD): Important clinical considerations and recommendations","volume":"342","author":"Allely","year":"2024","journal-title":"Psychiatry Res."}],"container-title":["Reports"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2571-841X\/8\/2\/51\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,9]],"date-time":"2025-10-09T17:16:03Z","timestamp":1760030163000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2571-841X\/8\/2\/51"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,4,17]]},"references-count":32,"journal-issue":{"issue":"2","published-online":{"date-parts":[[2025,6]]}},"alternative-id":["reports8020051"],"URL":"https:\/\/doi.org\/10.3390\/reports8020051","relation":{},"ISSN":["2571-841X"],"issn-type":[{"type":"electronic","value":"2571-841X"}],"subject":[],"published":{"date-parts":[[2025,4,17]]}}}