[Psychomotor development trajectories according to nutritional status in breastfed children]

To describe psychomotor development (PMD) trajectories and nutrition in children fed with breastfeeding (BF) and to evaluate possible associations.

Prospective co hort of full-term infants, without known pathologies, fed with BF. The intake of BF was evaluated with an isotopic technique at three months. At six successive ages, the nutritional status was evaluated according to the body mass index (BMI) for age and the PMD using the Ages and Stages Questionnai re (ASQ-3). Children who had at least two follow-up evaluations were included. Multivariate analysis of the trajectories by the PMD domain was performed according to BMI/A and BF, controlled by bio- socio-demographic variables.

53 children were included (60% male), 76 % were eutrophic, and 62% and 38% were fed exclusively or predominantly with BF, respectively. The nutritional and PMD trajectories were stable and within the normal range; there were no infants in the obesity ran ge. In the multivariate analysis, the Communication domain was significantly associated with BMI (p = 0.049) and BF (p = 0.032). Problem Solving domain was associated with BMI (p = 0.040). No significant associations were found in the trajectories of motor and socio-individual domains. Con clusion: The nutritional trajectories and each PMD domains were stable and within normal ranges. Exclusive BF was associated with a better Communication trajectory, while the BMI was associated with better Communication and Problem-Solving.