Related Experiment Video
Updated: Mar 28, 2026

Author Spotlight: Exploring the Impact of Reduced Resistance Exercise Volume on Metabolic Health
Published on: December 1, 2023
The IDEFICS intervention trial to prevent childhood obesity: design and study methods
I Pigeot1,2, T Baranowski3, S De Henauw4
1Leibniz Institute for Prevention Research and Epidemiology - BIPS, Bremen, Germany.
Insights
The IDEFICS intervention trial aimed to prevent childhood obesity using a community-based program. This study evaluated the intervention
Area of Science:
- Pediatric obesity prevention
- Public health interventions
- Childhood lifestyle behaviors
Background:
- The Identification and prevention of Dietary- and lifestyle-induced health EFfects In Children and infantS (IDEFICS) study focused on primary prevention of childhood obesity.
- A community-oriented intervention program was developed, implemented, and evaluated within the IDEFICS study.
- This supplement compiles key results from the IDEFICS intervention.
Purpose of the Study:
- To describe the overall design and methods of the IDEFICS intervention.
- To facilitate a comprehensive understanding of the intervention's key results presented in the supplement.
- To highlight 'best practice' examples from the intervention.
Main Methods:
- A non-randomized, quasi-experimental trial involving one intervention and one control region per country.
- Intervention designed using the intervention mapping framework and a socio-ecological approach.
- Targeted children aged 2 to 9.9 years, with data collected at baseline and 2-year follow-up.
Main Results:
- The primary outcome was the prevalence of overweight/obesity based on IOTF criteria.
- The intervention aimed to reduce overweight/obesity prevalence in intervention regions.
- Intervention delivered over 2 years in school and community settings.
Conclusions:
- This paper provides an introductory framework for understanding the IDEFICS intervention results.
- It sets the stage for a comprehensive reading of the supplement's findings.
- The described methods and results contribute to the field of childhood obesity prevention.
Introduction:
One of the major research dimensions of the Identification and prevention of Dietary- and lifestyle-induced health EFfects In Children and infantS (IDEFICS) study involved the development, implementation and evaluation of a setting-based community-oriented intervention programme for primary prevention of childhood obesity. In this supplement of Obesity Reviews, a compilation of key results of the IDEFICS intervention is packaged in a series of complementary papers.
Objective:
This paper describes the overall design and methods of the IDEFICS intervention in order to facilitate a comprehensive reading of the supplement. In addition, some 'best practice' examples are described.
Results:
The IDEFICS intervention trial was conducted to assess whether the IDEFICS intervention prevented obesity in young children aged 2 to 9.9 years. The study was a non-randomized, quasi-experimental trial with one intervention matched to one control region in each of eight participating countries. The intervention was designed following the intervention mapping framework, using a socio-ecological theoretical approach. The intervention was designed to address several key obesity-related behaviours in children, parents, schools and community actors; the primary outcome was the prevalence of overweight/obesity according to the IOTF criteria based on body mass index. The aim was to achieve a reduction of overweight/obesity prevalence in the intervention regions. The intervention was delivered in school and community settings over a 2-year period. Data were collected in the intervention and control cohort regions at baseline and 2 years later.
Conclusion:
This paper offers an introductory framework for a comprehensive reading of this supplement on IDEFICS intervention key results.
Related Concept Videos
Study Designs in Epidemiology
Observational studies are those where the researcher does not intervene but rather observes natural variations. They include cross-sectional, cohort, and...
Factorial Design
Community Based Intervention
Foundations of Community Mental Health Programs
Central to the success of community-based interventions is the...
Study Design in Statistics
Does aspirin reduce the risk of heart attacks? Is one brand of fertilizer more effective at growing roses than another? Is fatigue as dangerous to a driver as the influence of alcohol? Questions like these are answered using randomized experiments with proper...
Bioequivalence Experimental Study Designs: Repeated Measures, Cross-Over, Carry-Over, and Latin Square Designs
Group Design

