{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T03:31:06Z","timestamp":1790825466518,"version":"4.1.0"},"reference-count":29,"publisher":"S. Karger AG","issue":"6","license":[{"start":{"date-parts":[[2022,1,1]],"date-time":"2022-01-01T00:00:00Z","timestamp":1640995200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"},{"start":{"date-parts":[[2022,1,1]],"date-time":"2022-01-01T00:00:00Z","timestamp":1640995200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Psychother Psychosom"],"published-print":{"date-parts":[[2022]]},"abstract":"<b><i>Introduction:<\/i><\/b> Evidence-based psychotherapies for borderline personality disorder (BPD) are lengthy, posing a barrier to their access. Brief psychotherapy may achieve comparable outcomes to long-term psychotherapy for BPD. Evidence is needed regarding the comparative effectiveness of short- versus long-term psychotherapy for BPD. <b><i>Objective:<\/i><\/b> The aim was to determine if 6 months of Dialectical Behavior Therapy (DBT) is noninferior to 12 months of DBT in terms of clinical effectiveness. <b><i>Methods:<\/i><\/b> This two-arm, single-blinded, randomized controlled noninferiority trial with suicidal or self-harming patients with BPD was conducted at two sites in Canada. Participants (<i>N<\/i> = 240, <i>M<\/i> (SD)<sub>age<\/sub> = 28.27 (8.62), 79% females) were randomized to receive either 6 (DBT-6) or 12 months (DBT-12) of comprehensive DBT. Masked assessors obtained measures of clinical effectiveness at baseline and every 3 months, ending at month 24. DBT-6 and DBT-12 were outpatient treatments consisting of weekly individual therapy sessions, weekly DBT skills training group sessions, telephone consultation as needed, and weekly therapist consultation team meetings. <b><i>Results:<\/i><\/b> The noninferiority hypothesis was supported for the primary outcome, total self-harm (6 months: margin = \u22121.94, <i>M<\/i><sub>diff<\/sub> [95% CI] = 0.16 [\u22120.14, 0.46]; 12 months: margin = \u22121.47, <i>M<\/i><sub>diff<\/sub> [95% CI] = 0.04 [\u22120.17, 0.23]; 24 months: margin = \u22121.25, <i>M<\/i><sub>diff<\/sub> [95% CI] = 0.12 [\u22120.02, 0.36]). Results also supported noninferiority of DBT-6 for general psychopathology and coping skills at 24 months. Furthermore, DBT-6 participants showed more rapid reductions in BPD symptoms and general psychopathology. There were no between-group differences in dropout rates. <b><i>Conclusions:<\/i><\/b> The noninferiority of a briefer yet comprehensive treatment for BPD has potential to reduce barriers to treatment access. <\/jats:p>","DOI":"10.1159\/000525102","type":"journal-article","created":{"date-parts":[[2022,6,23]],"date-time":"2022-06-23T21:00:35Z","timestamp":1656018035000},"page":"382-397","source":"Crossref","is-referenced-by-count":80,"title":["The Effectiveness of 6 versus 12 Months of Dialectical Behavior Therapy for Borderline Personality Disorder: A Noninferiority Randomized Clinical Trial"],"prefix":"10.1159","volume":"91","author":[{"given":"Shelley F.","family":"McMain","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alexander L.","family":"Chapman","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Janice 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