A retrospective chart review was performed on children seen in the NEW Kids Program at the Children's Hospital of Wisconsin, a family-based clinic that treats pediatric obesity using medical management, nutrition education, behavioral intervention, and physical activity. Inclusion criteria were program participation for >or=9 months and >4 visits. Analyses were performed to identify factors associated with pre- to postintervention changes in BMI, BMI z-score, and CVRF laboratory values.