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Matern Child Nutr. 2018 Jan;14(1). doi: 10.1111/mcn.12460. Epub 2017 May 3.

Very low prevalence of iron deficiency among young French children: A national cross-sectional hospital-based survey.

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INSERM UMR1153, Centre de Recherche en Épidémiologie et Statistique Sorbonne Paris Cité (CRESS), équipe Épidémiologie Périnatale, Obstétricale et Pédiatrique (ÉPOPé), Labex GR-Ex, Université Paris Descartes, Paris, France.
Service de Pédiatrie Générale et Maladies Infectieuses, Hôpital Necker-Enfants malades, AP-HP, Université Paris Descartes, Paris, France.
Université Paris Diderot, Sorbonne Paris Cité, Paris, France.
INSERM UMR1153, Centre de Recherche en Épidémiologie et Statistique Sorbonne Paris Cité (CRESS), Equipe de Recherche en Epidémiologie Nutritionnelle (EREN), Université Paris Descartes, Paris, France.
Département de Santé Publique, AP-HP, Hôpital Avicenne, Bobigny, Paris, France.
Centre de recherche sur l'inflammation, INSERM UMR 1149, Université Paris Diderot; ERL CNRS 8252, Faculté de Médecine site Bichat, Paris, France.
Association Clinique et Thérapeutique Infantile du Val-de-Marne (ACTIV), Paris, France.
Université Paris Est, IMRB- GRC GEMINI, Paris, France.
Association Française de Pédiatrie Ambulatoire (AFPA), Talence, France.
Comité de nutrition de la Société Française de Pédiatrie, Paris, France.
Observatoire Régional de la Santé (ORS) Ile-de-France, Paris, France.
Centre de Recherche pour l'Etude et l'Observation des Conditions de vie (CREDOC), Paris, France.
Laboratoire CERBA, Paris, France.
Department of Clinical Epidemiology, Predictive Medicine and Public Health University of Porto Medical School, Porto, Portugal.
Santé Publique France, Paris, France.


Although iron deficiency (ID) is considered the most frequent micronutrient deficiency in industrialized countries and is associated with impaired neurodevelopment when occurring in early years, accurate recent estimations of its prevalence are lacking. Our objective was to estimate ID prevalence and associated sociodemographic markers in young children in France. The Saturn-Inf national cross-sectional hospital-based survey recruited 3,831 French children <6 years old between 2008 and 2009 to assess lead poisoning prevalence and to establish a biobank. This secondary analysis measured serum ferritinemia (SF) in sera kept frozen at -80 °C for children with sufficient serum aliquots and C-reactive protein <10 mg/L. For the 657 participating children (17% of the Saturn-Inf study), the median age was 3.9 years (interquartile range: 2.2-5.1); 52% were boys. The median SF was 44 μg/L (interquartile range: 28-71). ID prevalence was 2.8% (95% confidence interval [1.7, 4.7]) and 3.2% (95% confidence interval [2.0, 5.1]) with an SF threshold of 10 and 12 μg/L, respectively. Low SF was significantly associated (p < .05) with mother being a migrant (32 vs. 45 μg/L for a mother born in France) or unemployed (37 vs. 50 μg/L for a mother employed). In this first national cross-sectional hospital-based study in France, ID prevalence was much lower than that in other French and European studies performed in underprivileged populations but close to the lowest values observed in other population-based studies in Europe.


health policy; infant and child nutrition; infant iron status; infant milk formula; preschool children; socioeconomic factors

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