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  1. Length and ponderal index at birth : associations with mortality, hospitalizations, development and post-natal growth in brazilian infants.

    Article - En anglais

    Background Low birthweight infants suffer greater mortality and neonatal morbidity, grow less well in infancy and show poorer psycho-motor development.

    However, this simple categorization may obscure important differences in aetiology and prognosis between infants born stunted, thin, or both.

    Methods In 1993, all births in Pelotas, Brazil, were enrolled into a prospective study of health and development in infancy.

    Of 5249 live births, 5160 had length and weight measures at birth, and were classified into tertiles of length and ponderal index.

    All deaths and hospitalizations were monitored. and suspected developmental delay and attained growth at 12 months were assessed on a subsample of 1364 infants.

    Logistic regression was used to control for gestational age and socioeconomic status.

    Results There was no association between birth length and ponderal index tertiles.

    After adjusting for gestational age, infants in the lower tertiles of both length and ponderal index presented a 3.8-times higher risk of mortality from day 8 to day 365, and a 2.5-times higher risk of hospitalization compared to infants with greater birth lengths and/or ponderal indices.

    Suspected developmental delay was associated with length and, less strongly, with ponderal index, but there was no synergism between the two.

    Infants in the middle and upper tertiles of ponderal index at birth became thinner. (...)

    Mots-clés Pascal : Taille naissance, Poids naissance, Mortalité, Hospitalisation, Développement postnatal, Epidémiologie, Prédiction, Pronostic, Facteur risque, Nourrisson, Homme, Brésil, Amérique du Sud, Amérique, Etude cohorte, Biométrie

    Mots-clés Pascal anglais : Birth height, Birth weight, Mortality, Hospitalization, Postnatal development, Epidemiology, Prediction, Prognosis, Risk factor, Infant, Human, Brazil, South America, America, Cohort study, Biometrics

    Logo du centre Notice produite par :
    Inist-CNRS - Institut de l'Information Scientifique et Technique

    Cote : 98-0251612

    Code Inist : 002B30A01A2. Création : 11/09/1998.