Impact of severity of personality disorder on the outcome of depression.

The influence of severity of personality disorder on outcome of depression is unclear. Four hundred and ten patients with depression in 9 urban and rural communities in Finland, Ireland, Norway, Spain and the United Kingdom, were randomised to individual problem-solving treatment (n=121), group sessions on depression prevention (n=106) or treatment as usual (n=183). Depressive symptoms were recorded at baseline, 6 and 12 months.