Main content
  • Homepage
    • Who are we ?
      • The team
      • Associated researchers
      • Oversight
      • International partnerships
    • Background to the study
    • Study goals
    • Main research themes
      • Social sciences
      • Health
      • Environment
      • Cross-cutting research
    • How does it work? >
      • Key stages
      • Participants
      • Pilot study
      • Data security & ethics
    • Our partners
    • 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
    • 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
    • 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
    • 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
Rechercher
  • FR
  • EN

Recherche

Your Search

171 results
  • Infant feeding practices and sleep

    Infant feeding practices and sleep Zoom sur l'image More information Messayke S, Davisse-Paturet C, Nicklaus S, Dufourg MN, Charles MA, de Lauzon-Guillain B, Plancoulaine S (2020). Infant feeding practices and sleep at 1 year of age in the nationwide ELFE …
  • Preparing for the birth: what choices, what influences?

    Preparing for the birth: what choices, what influences? The period surrounding the birth of a child is a particularly significant event in people's lives ("the happiest day" of their lives). But under what conditions does it take place? Nathalie Oria …
  • Children's games: a reflection of their socialisation?

    Children's games: a reflection of their socialisation? Zoom sur l'image More information Bertrand Geay, Pierig Humeau, Emilie Spruyt « L'émergence du jeu symbolique selon les caractéristiques sociales de l'enfant », Journée scientifique de l’étude Elfe, …
  • Neurodevelopment of children: mothers' diet during pregnancy under the microscope

    Neurodevelopment of children: mothers' diet during pregnancy under the microscope EN SAVOIR PLUS de Lauzon-Guillain B, Marques C, Kadawathagedara M, Bernard JY, Tafflet M, Lioret S, Charles MA. Maternal diet during pregnancy and child neurodevelopment up …
  • The math performance gap between girls and boys is non-existent before the first year of primary school

    The math performance gap between girls and boys is non-existent before the first year of primary school Interview with Jean-Paul Fischer The math performance gap between girls and boys, with its attendant career consequences, is an issue that has received …
  • Allergy risk: the importance of not diversifying infant diets too late

    Allergy risk: the importance of not diversifying infant diets too late The development of food allergies in the French population has become a major public health problem. Parents are now encouraged to introduce potentially allergenic foods from the age …
  • Paternity leave and fathers' mental health

    Paternity leave and fathers' mental health Using data from the Elfe study, Katharine Barry and Maria Melchior have investigated the effect of paternity leave on fathers' post-partum depression. [VIDEO FR] In this interview, "Regards sur l'enfance", Maria …
  • Boys' or girls' games? The role of siblings!

    Boys' or girls' games? The role of siblings! Using data from the Elfe study, Abigail Bourguignon, Holly Hargis, Wilfried Lignier, Julie Pagis, Helène Oehmichen, Julien Vitores and Kevin Diter looked at the differences in play choices between girls and …
  • Early schooling at age 2 narrow the gaps in child development?

    Early schooling at age 2 narrow the gaps in child development? Using data from the Elfe study, Estelle Herbaut and Géraldine Farges examine the effects of 2-year-old schooling on children's development. [VIDEO FR] In this interview [FR], Géraldine Farges, …
  • Previous page
  • …
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • en_next_page
  • Document library
  • Contact us
  • Intranet Elfeo
  • Data access platform
  • Legal notice
Institut Nation d'Études Démographiques - Accueil

© Ined 2026