Motor and cognitive development of infants of adolescent and adult mothers: longitudinal study

• Published in: Revista brasileira de cineantropometria & desempenho humano Vol. 17; no. 4; pp. 438 - 449
• Main Authors: de Borba, Luana Silva, Valentini, Nadia Cristina
• Format: Journal Article
• Language: Portuguese
• Published: 01.01.2015
• ISSN: 1415-8426; 1980-0037
• DOI: 10.5007/1980-0037.2015v17n4p438

The aims of this study were to investigate in infants of adolescent and adult mothers: (1) the risk factors for child development; (2) changes in cognitive and motor development over four months of follow-up, (3) correlation between cognitive and motor development over four months of follow-up. This is a longitudinal study with 40 infants, 20 infants of adolescent mothers and 20 of adult mothers from Porto Alegre and Butia, state of Rio Grande do Sul, Brazil. Three evaluations of motor and cognitive development were performed using the Alberta Motor Infant Scale (AIMS) and the Bayley Scale Infant Development II. Significant difference in the supine position of AIMS was observed between groups in the third evaluation. Infants of adolescent mothers showed lower scores than those of adult mothers. The motor scores of each position and total AIMS score showed significant difference during overall time and in each group. The Bayley-II mental score also showed significant difference during overall time and in each group. There was a positive, strong and significant association between AIMS and Bayley scores in all three evaluation stages as in the group of infants of adolescent and adult mothers. It was concluded that infants of adolescent mothers showed worse results in the supine position during the third evaluation than those of adult mothers. There was a significant association between motor and cognitive development in both groups of infants over time.Original Abstract: Este estudo teve como objetivos investigar em bebes de maes adolescentes e adultas: (1) os fatores de risco para o desenvolvimento infantil; (2) as mudancas cognitivas e motoras ao longo de quatro meses, (3) as correlacoes entre o desenvolvimento motor e cognitivo ao longo de quatro meses. Estudo longitudinal com 40 bebes, 20 nascidos de maes adolescentes e 20 de maes adultas, provenientes dos municipios de Porto Alegre e Butia, no Rio Grande do Sid, Brasil. Foram realizadas tres avaliacoes do desenvolvimento motor e cognitivo, utilizando a Alberta Motor Infant Scale (AIMS) e Bayley Scale of Infant Development II. Na postura supina da AIMS, observou-se diferenca significativa entre os grupos na terceira avaliacao. Os bebes das maes adolescentes apresentaram escores mais baixos em relacao aos bebes de maes adultas. Os escores motores de cada postura da AIMS e o escore total AIMS apresentaram diferenca significativa ao longo do tempo em geral e em cada grupo. O escore mental bruto da Bayley-II tambem apresentou diferenca significativa ao longo do tempo em geral e em cada grupo. Observou-se associacao positiva, forte e significativa entre os escores totais da AIMS e Bayley em todos os tres momentos de avaliacao no grupo de bebes de maes adolescentes e adultas. Pode-se concluir que bebes de maes adolescentes apresentaram-se piores na postura supina em relacao aos bebes de maes adultas. Os desenvolvimentos motor e cognitivo se associaram significativamente em ambos os grupos ao longo do tempo.