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Is adolescent pregnancy a risk factor for low birth weight? Embarazo en la adolescencia es factor de riesgo para el bajo peso al nacer? Gravidez na adolescência é fator de risco para o baixo peso ao nascer?

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Author(s): Alzira Maria D'avila Nery Guimarães | Heloísa Bettiol | Luiz De Souza | Ricardo Q Gurgel | Maria Luiza Dória Almeida | Eleonora Ramos De Oliveira Ribeiro | Marcelo Z GoldaniV | Marco Antônio Barbieri

Journal: Revista de Saúde Pública
ISSN 0034-8910

Volume: 47;
Issue: 1;
Start page: 11;
Date: 2013;
Original page

Keywords: Embarazo en Adolescencia | Recién Nacido de Bajo Peso | Atención Prenatal | Factores de Riesgo | Factores Socioeconómicos | Estudios Transversales | Gravidez na Adolescência | Recém-Nascido de Baixo Peso | Cuidado Pré-Natal | Fatores de Risco | Fatores Socioeconômicos | Estudos Transversais | Pregnancy in Adolescence. Infant | Low Birth Weight | Prenatal Care | Risk Factors | Socioeconomic Factors | Cross-Sectional Studies

ABSTRACT
OBJECTIVE: The objective of this study was to evaluate whether adolescent pregnancy is a risk factor for low birth weight (LBW) babies. METHODS: This was a cross-sectional study of mothers and their newborns from a birth cohort in Aracaju, Northeastern Brazil. Data were collected consecutively from March to July 2005. Information collected included socioeconomic, biological and reproductive aspects of the mothers, using a standardized questionnaire. The impact of early pregnancy on birth weight was evaluated by multiple logistic regression. RESULTS: We studied 4,746 pairs of mothers and their babies. Of these, 20.6% were adolescents (< 20 years of age). Adolescent mothers had worse socioeconomic and reproductive conditions and perinatal outcomes when compared to other age groups. Having no prenatal care and smoking during pregnancy were the risk factors associated with low birth weight. Adolescent pregnancy, when linked to marital status "without partner", was associated with an increased proportion of low birth weight babies. CONCLUSIONS: Adolescence was a risk factor for LBW only for mothers without partners. Smoking during pregnancy and lack of prenatal care were considered to be independent risk factors for LBW.OBJETIVO: Evaluar el embarazo en la adolescencia como factor de riesgo para bajo peso al nacer. MÉTODOS: Estudio transversal incluido en una cohorte de puérperas y sus respectivos recién nacidos, en las cuatro maternidades de Aracaju, SE (Brasil), de marzo a julio de 2005. Se estudiaron 4.646 pares de madres/recién nacidos. Los datos se colectaron consecutivamente durante cuatro meses. Variables sociales, biológicas y asistenciales se obtuvieron por medio de cuestionario estandarizado. Se realizó regresión logística múltiple, con control de factores de confusión y de modificación. RESULTADOS: Del total analizadas, 20,6% eran adolescentes (
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