Recherche

Survey description The one-year survey is the second stage of telephone follow-up after the inclusion of Elfe children in the maternity ward. Between the previous two-month telephone survey and this one, parents were asked to fill in online or paper …

Methodology and programmes On this page you'll find information about weighting methods used for different waves. You'll also find recommended methods to compute the precision of analyses at each wave. Weighting methods used for different waves of Elfe …

Survey description The 2-year survey is the 3rd stage of telephone follow-up following the inclusion of Elfe children in the maternity ward. Its main objectives were to continue collecting data on the child's environment (family, social, economic, …

Survey description At 3 and 4 years old, three different surveys were conducted among the children in the Elfe cohort: I) The 3.5-year Survey; II) The Preschool Survey ("Moyenne Section de Maternelle") (documentation available in French only); III) The …

Survey description At ages 5 to 7, three different surveys were conducted among children in the Elfe cohort. The 5.5-year survey The survey at 5.5 years is the fourth stage of follow-up by interviewing parents after the inclusion of Elfe children in the …

Survey description At ages 8-10, three different surveys were conducted among the children in the Elfe cohort. Documentation is available for these surveys, but access to the data is currently reserved for researchers who are members of the thematic …

12-14 years Zoom sur l'image …

Biological data In addition to the interviews, some families volunteer to do biological collections, from mothers at the maternity ward, and from the child at birth and in following years. This is meant to test the impact of environmental, nutritional, …