ACTRN12606000206527.

Study name	Process and outcome of acceptance‐based outpatient skills training groups for people with four or more criteria of borderline personality disorder
Methods	RCT
Participants	Males and females with four or more criteria of BPD
Interventions	Phase 1 is a 12 week two hours per week acceptance‐based crisis skills training group. Clients have the option of continuing to Phase 2 which consists of an additional 30 weeks of skills training groups covering interpersonal skills, emotion regulation skills and mindfulness skills. The groups are a combination of Acceptance and Commitment Therapy and Dialectical Behaviour Therapy interventions in the context of Acceptance and Commitment Therapy principles of treatment. Random allocation to immediate start of treatment of 3 months delay
Outcomes	Utilisation of crisis emergency and inpatient services
Starting date	16 March 2006
Contact information	Elise Guymer, Spectrum PO Box 135 Ringwood East VIC 3135, Australia; eliseguymer@netscape.net
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