De Lauzon-Guillain, Blandine, Davisse-Paturet, Camille, Lioret, Sandrine, Ksiazek, Eléa, Bois, Corinne, Dufourg, Marie-Noëlle, Bournez, Marie, Nicklaus, Sophie, Wagner, Sandra, Charles, Marie, Equipe 6 : ORCHAD - Origines précoces de la santé du développement de l'enfant (CRESS - U1153), Université Paris Descartes - Paris 5 (UPD5)-Centre de Recherche Épidémiologie et Statistique Sorbonne Paris Cité (CRESS (U1153 / UMR_A_1125 / UMR_S_1153)), Université Paris Diderot - Paris 7 (UPD7)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut National de la Recherche Agronomique (INRA)-Université Paris Descartes - Paris 5 (UPD5)-Université Sorbonne Paris Cité (USPC)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut National de la Recherche Agronomique (INRA)-Université Sorbonne Paris Cité (USPC), Centre des Sciences du Goût et de l'Alimentation [Dijon] (CSGA), Institut National de la Recherche Agronomique (INRA)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique (CNRS), Etude longitudinale française depuis l'enfance (UMS : Ined-Inserm-EFS) (ELFE), EFS-Institut national d'études démographiques (INED)-Institut National de la Santé et de la Recherche Médicale (INSERM), Service départemental de PMI [Nanterre], Conseil départemental des Hauts-de-Seine, The ELFE survey is a joint project between INED (Institut National d'Etudes Démographiques), INSERM (Institut National de la Santé et de la Recherche Médicale), EFS (Etablissement Français du Sang), InVS (Institut de Veille Sanitaire), INSEE (Institut National de la Statistique et des Etudes Economiques), the Ministry of Health (DGS, Direction Générale de la Santé), the Ministry of Environment (DGPR, Direction Générale de la Prévention des Risques), the Ministry of Health and Employment (DREES, Direction de la Recherche, des Etudes, de l'Evaluation et des Statistiques), and the CNAF (Caisse Nationale des Allocations Familiales), with the support of the Ministry of Research and CCDSHS (Comité de Concertation pour les Données en Sciences Humaines et Sociales) and the Ministry of Culture (DEPS, Département des études, de la prospective et des statistiques). As part of the RECONAI platform, the study received state funding from the ANR within the framework of the 'Future Investments' program (reference: ANR-11- EQPX-0038). This analysis was funded by an ANR grant within the framework 'Social determinants of health' (reference: ANR-12-DSSA-0001) and Sandra Wagner was the recipient of a grant from the Nestlé Foundation., ANR-11-EQPX-0038/11-EQPX-0038,RE-CO-NAI,Plateforme de REcherche sur les COhortes d'enfants suivis depuis la NAIssance(2011), Institut National de la Recherche Agronomique (INRA)-Université Paris Diderot - Paris 7 (UPD7)-Université Paris Descartes - Paris 5 (UPD5)-Université Sorbonne Paris Cité (USPC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut National de la Recherche Agronomique (INRA)-Université Paris Diderot - Paris 7 (UPD7)-Université Sorbonne Paris Cité (USPC)-Institut National de la Santé et de la Recherche Médicale (INSERM), Centre National de la Recherche Scientifique (CNRS)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Institut National de la Recherche Agronomique (INRA)-Université de Bourgogne (UB), The ELFE survey is a joint project between INED (Institut National d'Etudes Démographiques), INSERM (Institut National de la Santé et de la Recherche Médicale), EFS (Etablissement Français du Sang), InVS (Institut de Veille Sanitaire), INSEE (Institut National de la Statistique et des Etudes Economiques), the Ministry of Health (DGS, Direction Générale de la Santé), the Ministry of Environment (DGPR, Direction Générale de la Prévention des Risques), the Ministry of Health and Employment (DREES, Direction de la Recherche, des Etudes, de l'Evaluation et des Statistiques), and the CNAF (Caisse Nationale des Allocations Familiales), with the support of the Ministry of Research and CCDSHS (Comité de Concertation pour les Données en Sciences Humaines et Sociales) and the Ministry of Culture (DEPS, Département des études, de la prospective et des statistiques). As part of the RECONAI platform, the study received state funding from the ANR within the framework of the 'Future Investments' program (reference: ANR-11- EQPX-0038)., Sandra Wagner was the recipient of a grant from the Nestlé Foundation., ANR-11-EQPX-0038,RE-CO-NAI,Plateforme de REcherche sur les COhortes d'enfants suivis depuis la NAIssance(2011), and ANR-12-DSSA-0001,SOFI,Déterminants socio-culturel des pratiques alimentaires dans l'enfance(2012)
B de Lauzon-Guillain and C Davisse-Paturet contributed equally to this work.; International audience; Breastfeeding is recommended until 6 months of age, but a wide range of infant formula is available for nonbreastfed or partially breastfed infants. Our aim was to describe infant formula selection and to examine social- and health-related factors associated with this selection. Analyses were based on 13,291 infants from the French national birth cohort Etude Longitudinale Française depuis l'Enfance. Infant diet was assessed at Month 2 by phone interview and monthly from Months 3 to 10 via internet/paper questionnaires. Infant formulas were categorized in 6 groups: extensively or partially hydrolysed, regular with or without prebiotics/probiotics, and thickened with or without prebiotics/probiotics. Associations between type of infant formula used at 2 months and family or infant characteristics were assessed by multinomial logistic regressions. At Month 2, 58.1% of formula-fed infants were fed with formula enriched in prebiotics/probiotics, 31.5% with thickened formula, and 1.4% with extensively hydrolysed formula. The proportion of formula-fed infants increased regularly, but the type of infant formula used was fairly stable between 2 and 10 months. At Month 2, extensively hydrolysed formulas were more likely to be used in infants with diarrhoea or regurgitation problems. Partially hydrolysed formulas were more often used in families with high income, with a history of allergy, or with infants with regurgitation issues. Thickened formulas were used more with boys, preterm infants, infants with regurgitation issues, or in cases of early maternal return to work. The main factors related to the selection of infant formula were family and infant health-related ones.