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Rationales, design and recruitment for the Elfe longitudinal study
Stéphanie Vandentorren1, Corinne Bois, Claudine Pirus
1Département santé environnement, Institut de veille sanitaire, Saint Maurice, France. s.vandentorren@invs.sante.fr
BMC Pediatrics
|September 24, 2009
Summary
This study establishes a large, national cohort to track children from birth to adulthood. It aims to understand how early life factors, including environment and social influences, impact long-term health and development.
Area of Science:
- Child development research
- Longitudinal cohort studies
- Public health and epidemiology
Background:
- Childhood health is influenced by multiple simultaneous factors, including prenatal conditions, environmental exposures, and social dynamics from family and school.
- A comprehensive cohort study is essential to differentiate these influences and determine causal attributions.
- Understanding these early-life determinants is crucial for improving long-term health outcomes and life trajectories.
Purpose of the Study:
- To establish a nationally representative cohort of 20,000 children to investigate the multifaceted influences on child development from birth to adulthood.
- To disentangle the complex interplay of pre-birth, environmental, and socio-familial factors affecting children's health and well-being.
- To provide a robust dataset for analyzing the long-term impact of childhood experiences on physical, psychological, social, and professional development.
Main Methods:
- Utilizing a multidisciplinary approach, the Elfe cohort study recruits 20,000 children, leveraging the INSEE Permanent Demographic Panel (EDP) for representativeness.
- Data collection involves repeated face-to-face or phone interviews (birth annually), medical assessments (ages 2 and 6), and biological sample analysis for fetal exposure assessment.
- Environmental sensors will be deployed in homes, and pilot studies have informed the ongoing data collection, including a 2-year survey.
Main Results:
- Pilot studies initiated in 2007 with 500 children achieved a 55% acceptance rate, providing valuable insights for the ongoing cohort.
- The 2-year survey is currently underway, indicating progress in data collection for the Elfe cohort.
- While specific results are pending, the methodology is designed to yield data on prevalence estimation and rare effect research.
Conclusions:
- The Elfe longitudinal study will generate a unique dataset for analyzing child development within their environmental context.
- It will enable the study of interacting factors throughout the life course, from childhood to adulthood.
- The research aims to determine the precise impact of childhood experiences on an individual's holistic development and future life outcomes.
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