Whether the question was fully answered or not, the review identified some evidence on the effectiveness of various stages of the than interventions in treating childhood obesity. The included trials for review were heterogeneous and involved children between the ages of 6 and 17 years. Eight studies (n=8) focused on family-based intervention studies with participants (n=721) and five (n=5) for school-based intervention studies with participants (n=1346). Seven studies in the family-based intervention reported to be effective except for one study by Goldfield et al. [55], which focussed on cost effectiveness of the intervention. The family-based intervention studies reported their effectiveness depending on various factors such as the type of intervention, methodological quality, outcome, follow up and miscellaneous factors such as the setting, intervention personnel and duration of treatment [54].

The interventional components of childhood obesity include behaviour change, diet and physical activity [62]. Family-based interventions utilised all the three components, more specifically dietary behaviour changes, except for one trial by Golley et al. [68], which utilised lifestyle parent skills as a foundation for successful intervention that places a regular, targeted increase in physical activity and targeted reduction in high fat foods. Barlow and Dietz [63] reported that parent-involved programmes had short or long-term beneficial effects on the BMI of participants, which was supported by Jiang et al. [67].

Most of the school-based programmes used physical activity and dietary changes as their intervention, which proved to be effective in the short term [17]. However, a systematic review by Katz et al. [32] found that physical activity and nutrition proved to be effective in decreasing BMI among the intervention group when compared to control. The importance of a combined diet, physical activity and behaviour components were highlighted in many studies [64,65], though was observed in family-based rather than school-based intervention Cilengitide studies. Studies by Golan (1998 and 2006) proved parental involvement as effective components of an intervention to treat childhood obesity, which was also reported in a systematic review by Luttikhuis et al. [5] which showed that parental involvement with children younger than twelve years is more effective than at any other age. In the review, it was shown that parental involvement is more effective between the ages of 6 and 12 years than participants over 12 years. In some school-based intervention, the age grou
In Canada, public health program planning and delivery at the regional/local level is performed by the regional health authorities (RHA).