Dropout of treatment is one of the key issues in outcome in a child and ado
lescent mental health service. We report two studies focusing on the treatm
ent process and the dropout rate of children with persistent conduct proble
ms presenting to a community mental health service, using a prospective des
ign. The first study included 32 children and used a randomised controlled
treatment design comparing a CBT approach with conjoint family therapy and
an eclectic approach. The overall dropout rate was 36%. Dropout occurred si
gnificantly less frequently in the CBT group. The dropout group was associa
ted with mothers who were younger and less educated, a poorer rating by the
clinicians at the last meeting, parental dissatisfaction with the treatmen
t service and perception that the treatment was less organised and having l
ess behavioural tasks. In the second study we used a naturalistic follow-up
design. Forty-six children were included, The overall dropout rate was 48%
. Again, the children who defaulted were rated by clinicians as less likely
to have improved and dropout was also significantly associated with parent
al perception of a less organised treatment. In both studies dropout usuall
y occurred after assessment and at the early phase of treatment.