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Cost-Effectiveness and Long-Term Savings of the Bright Bodies Intervention for Childhood Obesity
Sydney Pryor1, Mary Savoye2, Paulina Nowicka3
1Department of Chronic Disease Epidemiology, Yale School of Public Health, New Haven, CT, USA; Department of Health Policy and Management, Milken Institute School of Public Health, George Washington University, Washington, DC, USA.
Insights
The Bright Bodies program significantly reduces children's body mass index (BMI) and is cost-saving for the healthcare system by lowering future obesity-related costs.
Area of Science:
- Public Health
- Health Economics
- Pediatric Obesity
Background:
- Childhood obesity is a growing public health concern with significant long-term health and economic consequences.
- Effective interventions are needed to manage and reduce obesity rates in children.
- The Bright Bodies program is a high-intensity, family-based intervention shown to improve body mass index (BMI) in children with obesity.
Purpose of the Study:
- To estimate the cost and cost-effectiveness of the Bright Bodies intervention.
- To compare the economic impact of Bright Bodies against traditional clinical weight management.
- To project the long-term healthcare cost savings associated with reduced childhood obesity.
Main Methods:
- A microsimulation model was developed to project 10-year BMI trajectories for children aged 8-16 with obesity.
- Data from the National Longitudinal Surveys and CDC growth charts were used for model development and validation.
- The model estimated BMI reduction, incremental costs of Bright Bodies, and projected obesity-related medical expenditures from a health system perspective.
Main Results:
- Bright Bodies is projected to reduce a participant's BMI by 1.67 kg/m² annually over 10 years compared to control.
- The incremental cost of Bright Bodies was $360 per person, but it generated cost savings of $1126 per person over 10 years.
- Cost savings were achieved within approximately 3.58 years, offsetting the initial intervention costs.
Conclusions:
- Despite being resource-intensive, the Bright Bodies intervention is cost-saving compared to standard clinical care.
- The program averts future obesity-related healthcare costs, demonstrating its economic value.
- Investing in intensive childhood obesity interventions like Bright Bodies can lead to significant long-term healthcare savings.
Objectives:
To estimate the cost and cost-effectiveness of Bright Bodies, a high-intensity, family-based intervention that has been demonstrated to improve body mass index (BMI) among children with obesity in a randomized controlled trial.
Methods:
We developed a microsimulation model to project 10-year BMI trajectories of 8 to 16-year-old children with obesity, using data from the National Longitudinal Surveys and Centers for Disease Control and Prevention growth charts, and we validated the model using data from the Bright Bodies trial and a follow-up study. We used the trial data to estimate the average reduction in BMI per person-year over 10 years and the incremental costs of Bright Bodies, compared with the traditional clinical weight management (control), from a health system's perspective in 2020 US dollars. Using results from studies of Medical Expenditure Panel Survey data, we projected the long-term obesity-related medical expenditure.
Results:
In the primary analysis, assuming depreciating effects postintervention, Bright Bodies is expected to reduce a participant's BMI by 1.67 kg/m2 (95% uncertainty interval 1.43-1.94) per year over 10 years as compared with control. The incremental intervention cost of Bright Bodies was $360 ($292-$421) per person compared with the clinical control. Nevertheless, savings in obesity-related healthcare expenditure offset these costs and the expected cost-savings of Bright Bodies is $1126 ($689-$1693) per person over 10-years. The projected time to achieve cost-savings compared with clinical control was 3.58 (2.63-5.17) years.
Conclusions:
Although resource-intensive, our findings suggest that Bright Bodies is cost-saving compared to the clinical control by averting future obesity-related healthcare costs among children with obesity.
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