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The ELFE Study
Who are we ?
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Results so far
Social sciences
Children's experience of the first lockdown in France
Early language socialisation
Role of grandparents after a birth
Growing up in a family of immigrant origin in France
Caring and sharing: who looks after baby?
Socioeconomic inequalities in language and motor development
Becoming the parents of a boy or girl
Low birth weight and socioeconomic characteristics
Preparing for the birth: what choices, what influences?
Children's games: a reflection of their socialisation?
The math performance gap between girls and boys is non-existent before the first year of primary school
Boys' or girls' games? The role of siblings!
Early schooling at age 2 narrow the gaps in child development?
Children with special educational needs
Health
Sleep habits and sleep characteristics at age one year in the ELFE birth cohort study
European LifeCycle Project: a network of cohorts totalling 250,000 children to improve public health
Elfe participe à la construction des nouvelles courbes de croissance du périmètre crânien
Respiratory symptoms at 2 months and 1 year
BCG vaccination before 3 months
Early prenatal interview and antenatal education
Tobacco and alcohol use during pregnancy in France: The role of migrant status
Psychological distress and access to mental healthcare during pregnancy
Infant feeding practices and sleep
Neurodevelopment of children: mothers' diet during pregnancy under the microscope
Allergy risk: the importance of not diversifying infant diets too late
Paternity leave and fathers' mental health
The microbiota of toddlers under the microscope!
Accidents of everyday life from 1 to 10.5 years old
Ophthalmological impairments at five and a half years after preterm birth
Environment
Levels of pyrethroid pesticides in pregnant women
Analysis of pesticides in hair samples from pregnant women
Absorption of environmental pollutants during pregnancy
Dietary exposure to pesticide residues
Exposure to microorganisms in the home
Impact of occupational exposure to solvents during pregnancy on fetal growth
Cross-cutting research
Infant formula : social and health related factors
Determinants of dietary diversification
Duration of breastfeeding in France
Breastfeeding practices
Children's health and inequalities: a report by the Cour des Comptes documented by data from the Elfe study
Children's exposure to screens: are families following the recommendations?
L'influence de la fratrie sur le développement du langage des enfants à 2 ans
10 years & 10 research advances
Research
Publications
Academic journals
Reports & working documents
Popular science articles
Theses
Research projects
Social sciences
Health
Environment
Cross-cutting research
Methodology
International comparisons
Access to data & questionnaires
Questionnaires and other useful documents
Other cohorts
Newsletter
Elfe Actu Archives
Lettres-Elfe Archives
Survey section
Doctor and dentist survey
espace médecin
Espace chirurgien-dentiste - enquête santé Elfe
Survey at 10½ years
Biological part
School surveys
Survey in Year 4 of primary school
First-year primary school survey
Survey at nursery school
Stakeholders
Covid-19 survey
Families section
Agenda
Enquête en ligne à 11 ou 12 ans
Pilot survey on teenage years
Survey at 14 years old - teenagers
Survey at 14 years - parents
Lettres d’information
newsletter 6
Le coin des enfants >
C’est quoi Elfe ?
Graine d'Elfe - Journal d'information
Boîte à jeux
Mon expérience Elfe - Concours Elfe artiste
En coulisses >
From construction to a survey
Témoignages de familles
Parents Ambassadeurs
Le saviez-vous ?
happy new year
Family rights and data security
Confidentialité des données
RIGHTS OF PARTICIPANTS
What's new
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