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Stephen Scott a Department of Child and Adolescent Psychiatry,
Institute of Psychiatry, King's College London, London SE5 8AF, b Centre for the Economics of
Mental Health, Institute of Psychiatry, c MRC Social, Genetic and Developmental
Psychiatry Research Centre, Institute of Psychiatry
Correspondence
to: S Scott s.scott{at}iop.kcl.ac.uk
Objectives:
To compare the cumulative costs of public services used through to adulthood by individuals with three levels of
antisocial behaviour in childhood.
What is already known on this topic
What this study adds
Design:
Costs applied to data of 10 year old children from the inner London longitudinal study selectively followed up to adulthood.
Setting:
Inner London borough.
Participants:
142 individuals divided into three
groups in childhood: no problems, conduct problems, and conduct disorder.
Main outcome measures:
Costs in 1998 prices for public
services (excluding private, voluntary agency, indirect, and personal
costs) used over and above basic universal provision.
Results:
By age 28, costs for individuals with conduct disorder were 10.0 times higher than for those with no problems (95%
confidence interval of bootstrap ratio 3.6 to 20.9) and 3.5 times
higher than for those with conduct problems (1.7 to 6.2). Mean
individual total costs were £70 019 for the conduct disorder group
(bootstrap mean difference from no problem group £62 898; £22 692
to £117 896) and £24 324 (£16 707; £6594 to £28 149) for the
conduct problem group, compared with £7423 for the no problem group.
In all groups crime incurred the greatest cost, followed by extra
educational provision, foster and residential care, and state benefits;
health costs were smaller. Parental social class had a relatively small
effect on antisocial behaviour, and although substantial independent
contributions came from being male, having a low reading age, and
attending more than two primary schools, conduct disorder still
predicted the greatest cost.
Conclusions:
Antisocial behaviour in childhood is a
major predictor of how much an individual will cost society. The cost is large and falls on many agencies, yet few agencies contribute to
prevention, which could be cost effective.
Children who show substantial antisocial behaviour have poor social
functioning as adults and are at high risk of social
exclusion
Costs of antisocial behaviour incurred by individuals from childhood to
adulthood were 10 times greater for those who were seriously
antisocial in childhood than for those who were not
and avoidable
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