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three times a week Sixtytwo percent of patients also received antidepression medication. Benzodiapines were also used. Symptoms were reduced, but not eliminated. Findings confirmed the effectiveness of DBT. It was also proved that DBT can be used in an inpatient setting. Positive aspects of DBT Reduced suicidal behaviour Hospitalizations Length of hospitalization treatment dropout Depression scores Anger Dissociation Substance use Increased interpersonal functioning Global functioning Negative aspects of DBT The first stage alone takes one year at least. Expensive Long waiting lists Evaluation ? There are few studies about DBT. Most studies use small samples. ? There were no followup studies of the original research. ? Personality disorders are difficult to treat. Parasuicidal behaviours are hard to control. However, DBT seems to help most patients. ? It is possible to adapt DBT to other situations and settings.