Résumé :
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[BDSP. Notice produite par INIST-CNRS DBGR0x9f. Diffusion soumise à autorisation]. In many developing countries, breastfed children have a lower nutritional status than those weaned from 12 months of age. Reverse causality, that is, earlier weaning of healthy and well-nourished children, is a possible explanation. Maternal reasons for early and late weaning were investigated in a cohort of 485 rural Senegalese children using structured interviews during two rounds at the ages of 18-28 and 23-33 months, respectively. Length, weight and height were assessed, and dates of weaning were monitored. The mean duration of breastfeeding was 24.1 months (quartiles 21.9 and 26.3). Two-thirds of mothers of breastfed children under 2 stated that they would wean at the age of 2, while for breastfed children aged 2 years, a'tall and strong'child was the most prevalent criterion. The main reasons for weaning prior to 2 years (N=244) were that the child ate well from the family plate (60%), that the child was'tall and strong' (46%) and maternal pregnancy (35%). The main reasons for weaning later than the age of 2 were : a'little, weak'child (33%), food shortage (25%), illness of the child (24%) and refusal of family food (14%, N=120). Children breastfed above the age of 2 because they were'small and weak'had lower mean height-for-age and a greater prevalence of stunting than children breastfed late for other reasons (P<0.0001). The habit of postponing weaning of stunted children very likely explains why breastfed children have lower height-for-age than weaned children in this setting.
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