Table 1.

Study inclusion and exclusion criteria. ¹

Inclusion Criteria	Exclusion Criteria
Trial-based cost-effectiveness analyses, simulation-based cost-effectiveness analyses	Reviews, meta analyses, qualitative studies, partial economic evaluations (i.e., only description of costs or outcomes), not peer reviewed
Target population: Preschool children (<6 years) and/or their parents	Selected target groups (e.g., low socioeconomic status, ethnic groups)
Intervention: Behavioural intervention targeting diet and physical activity	Pharmaceutical intervention, surgical intervention, structural intervention
Intervention outcome measures must include at least one of the following: BMI or waist circumference, overweight prevalence
Language: English or German	No abstract available; conference abstracts
European countries, USA, Canada, Australia, New Zealand	Developing countries

¹ As a part of the literature search, economic evaluation protocols and additional information related to included studies were checked.