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Trauma caused by those close to the patient might have a more profound impact than other types of trauma and may influence early life social functioning. The aim is to investigate the associations between different types of trauma, in particular close interpersonal traumas experienced before the age of 18, premorbid factors and baseline clinical characteristics in a sample of first\u2010episode psychosis patients.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>A total of 191 patients from the \u2018<jats:styled-content style=\"fixed-case\">TIPS<\/jats:styled-content>\u2019 cohort completed assessment with the <jats:styled-content style=\"fixed-case\">B<\/jats:styled-content>rief <jats:styled-content style=\"fixed-case\">B<\/jats:styled-content>etrayal <jats:styled-content style=\"fixed-case\">T<\/jats:styled-content>rauma <jats:styled-content style=\"fixed-case\">S<\/jats:styled-content>urvey at their 5 years follow\u2010up interview.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Half of the patients reported that they had experienced interpersonal trauma and one\u2010third reported having experienced close interpersonal trauma before the age of 18. Women reported more sexual abuse, physical attacks and emotional and physical maltreatment than men. There were significant associations between early interpersonal trauma and premorbid adjustment and duration of untreated psychosis, but no significant associations with length of education, comorbid substance use or baseline clinical symptomatology.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Close interpersonal trauma before the age of 18 is associated with poorer premorbid adjustment and a longer duration of untreated psychosis. This may indicate that traumatic experiences delay help\u2010seeking behaviour.<\/jats:p><\/jats:sec>","DOI":"10.1111\/eip.12315","type":"journal-article","created":{"date-parts":[[2016,1,23]],"date-time":"2016-01-23T08:24:35Z","timestamp":1453537475000},"page":"316-323","source":"Crossref","is-referenced-by-count":26,"title":["Relation between premorbid adjustment, duration of untreated psychosis and close interpersonal trauma in first\u2010episode psychosis"],"prefix":"10.1111","volume":"12","author":[{"given":"Ulrik Helt","family":"Haahr","sequence":"first","affiliation":[{"name":"Early Psychosis Intervention Center Psychiatry East, Region Zealand  Roskilde Denmark"},{"name":"Institute of Clinical Medicine Faculty of Health and Medical Sciences University of Copenhagen  Copenhagen Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tor Ketil","family":"Larsen","sequence":"additional","affiliation":[{"name":"Regional Centre for Clinical Research in Psychosis 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