Caution must therefore be exercised in interpreting results , but the case for investment in parenting and health visitor-related programmes appears most strong , especially when impacts beyond the health sector are taken into account .
In the workplace an economic return on investment in a number of comprehensive workplace health promotion programmes and stress management projects ( largely in the USA ) was reported , while group-based exercise and psychosocial interventions are of potential benefit to older people .
The clinical effectiveness of different parenting programmes for children with conduct problems: a systematic review of randomised controlled trials
Background Conduct problems are common , disabling and costly . The prognosis for children with conduct problems is poor , with outcomes in adulthood including criminal behaviour , alcoholism , drug abuse , domestic violence , child abuse and a range of psychiatric disorders . There has been a rapid expansion of group based parent-training programmes for the treatment of children with conduct problems  in a number of countries over the past 10 years . Existing review s of parent training have method ological limitations such as inclusion of non-r and omised studies , the absence of investigation for heterogeneity prior to meta- analysis or failure to report confidence intervals . The objective of the current study was to systematic ally review r and omised controlled trials of parenting programmes for the treatment of children with conduct problems .  Methods St and ard systematic review methods were followed including duplicate inclusion decisions , data extraction and quality assessment . Twenty electronic data bases from the fields of medicine , psychology , social science and education were comprehensively search ed for RCTs and systematic review s to February 2006 . Inclusion criteria were : r and omised controlled trial ; of structured , repeatable parenting programmes ; for parents/carers of children up to the age of 18 with a conduct problem ; and at least one measure of child behaviour . Meta- analysis and qualitative synthesis were used to summarise included studies . Results 57 RCTs were included . Studies were small with an average group size of 21 . Meta-analyses using both parent ( SMD -0.67 ; 95 % CI : -0.91 , -0.42 ) and independent ( SMD -0.44 ; 95 % CI : -0.66 , -0.23 ) reports of outcome showed significant differences favouring the intervention group . There was insufficient evidence to determine the relative effectiveness of different approaches to delivering parenting programmes . Conclusion Parenting programmes are an effective treatment for children with conduct problems . The relative effectiveness of different parenting programmes requires further research
Caution must therefore be exercised in interpreting results , but the case for investment in parenting and health visitor-related programmes appears most strong , especially when impacts beyond the health sector are taken into account .
In the workplace an economic return on investment in a number of comprehensive workplace health promotion programmes and stress management projects ( largely in the USA ) was reported , while group-based exercise and psychosocial interventions are of potential benefit to older people .