{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,5]],"date-time":"2026-10-05T01:48:53Z","timestamp":1791164933753,"version":"4.1.0"},"reference-count":40,"publisher":"Royal College of Psychiatrists","issue":"4","license":[{"start":{"date-parts":[[2018,1,2]],"date-time":"2018-01-02T00:00:00Z","timestamp":1514851200000},"content-version":"unspecified","delay-in-days":1554,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Br J Psychiatry"],"published-print":{"date-parts":[[2013,10]]},"abstract":"<jats:sec><jats:title>Background<\/jats:title><jats:p>There are no randomised clinical trials comparing the outcomes of short- with long-term psychodynamic group psychotherapy.<\/jats:p><\/jats:sec><jats:sec><jats:title>Aims<\/jats:title><jats:p>To compare differences in outcome during and after short-and long-term group psychotherapy.<\/jats:p><\/jats:sec><jats:sec><jats:title>Method<\/jats:title><jats:p>In total, 167 out-patients with mood, anxiety and personality disorders were randomised to short- or long-term group therapy (20 or 80 weekly, 90 min sessions). Outcome measures were: symptoms (Symptom Checklist 90 \u2013 Revised), interpersonal problems (Inventory of Interpersonal Problems \u2013 Circumplex) and psychosocial functioning (Global Assessment of Functioning (GAF) split version: GAF-Symptom and GAF-Function). Change over the 3-year study period was assessed using linear mixed models. The study was registered in clinicalTrials.gov as NCT00521417.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Patients in both groups made significant gains. A significantly larger symptomatic change over time was found for long-term compared with short-term therapy, but no significant differences were detected for the three remaining outcome variables. There was a higher number of premature terminations in the long-term (33.3%) compared with the short-term group (8.6%).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Short- and long-term therapy seem equally effective for typical out-patients seeking group psychotherapy, except for symptomatic distress.<\/jats:p><\/jats:sec>","DOI":"10.1192\/bjp.bp.112.113688","type":"journal-article","created":{"date-parts":[[2013,9,13]],"date-time":"2013-09-13T03:58:56Z","timestamp":1379044736000},"page":"280-287","source":"Crossref","is-referenced-by-count":57,"title":["Comparison of short- and long-term dynamic group psychotherapy: randomised clinical trial"],"prefix":"10.1192","volume":"203","author":[{"given":"Steinar","family":"Lorentzen","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Torleif","family":"Ruud","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anette","family":"Fjeldstad","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Per","family":"H\u2298glend","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"170","published-online":{"date-parts":[[2018,1,2]]},"reference":[{"key":"S0007125000053095_ref39","article-title":"Implications of therapist effects for the design and analysis of comparative studies of psychotherapies","volume":"59","author":"Crits-Cristoph","year":"1991","journal-title":"J Consult Clin Psychol"},{"key":"S0007125000053095_ref36","volume-title":"Statistical Power Analysis for the Behavioral Sciences","author":"Cohen","year":"1988"},{"key":"S0007125000053095_ref33","doi-asserted-by":"publisher","DOI":"10.1037\/0022-006X.59.1.12"},{"key":"S0007125000053095_ref32","doi-asserted-by":"publisher","DOI":"10.2307\/2533520"},{"key":"S0007125000053095_ref30","volume-title":"Linear Mixed Models for Longitudinal Data","author":"Verbeke","year":"2000"},{"key":"S0007125000053095_ref29","first-page":"456","volume-title":"Practical Statistics for Medical Research","author":"Altman","year":"1991"},{"key":"S0007125000053095_ref27","article-title":"Intraclass correlations: uses in assessing rater reliability","volume":"86","author":"Shrout","year":"1991","journal-title":"Psychol Bull"},{"key":"S0007125000053095_ref25","doi-asserted-by":"publisher","DOI":"10.1037\/0022-006X.56.6.885"},{"key":"S0007125000053095_ref23","volume-title":"The SCL-90-R: Administration, Scoring and Procedures. 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