Pregnancy in teenagers and low birthweight infant: is there an association?

ABSTRACT Objective: To study the association between teenage pregnancy (ten to 19 years old) and low birthweight. Methods: Cross-sectional study carried out at a tertiary center from June 2000 to June 2001. A simple random drawing selected teenagers and adult mothers who were interviewed during the first day after birth. multivariate analysis using logistic regression of variables related to low birthweight was applied. Results: 539 pairs (mothers and their newborns) were studied – 331 (61.4%) women with 20 years old or more and 208 (38.5%) <20 years old. Among the adolescents, 50 (24%) infants had gestational age <37 weeks, whereas among mothers over 20 years old, 52 (15.7%) were preterm (OR 1.58; 95%CI 1.00-2.51). Among the adolescent and adult women, there were respectively 52 (25%) and 56 (16.9%) newborns <2500g (OR 1.64; 95%CI 1.05-2.56). Among those who had adequate prenatal care, low birth weight was detected in 12.3 and 22.1% of mothers with adequate and inadequate prenatal care, respectively. The association found in the univariate analysis between low birth weight and maternal age was not sustained in the multivariate analysis.

[1]  B. Horta,et al.  [Maternity and paternity in the Pelotas birth cohort from 1982 to 2004-5, Southern Brazil]. , 2008, Revista de saude publica.

[2]  S. Wen,et al.  Increased risks of neonatal and postneonatal mortality associated with teenage pregnancy had different explanations. , 2008, Journal of clinical epidemiology.

[3]  Emília de Faria Carniel,et al.  Determinantes do baixo peso ao nascer a partir das Declarações de Nascidos Vivos , 2008 .

[4]  C. Madhu,et al.  A comparative study of teenage pregnancy , 2008, Journal of obstetrics and gynaecology : the journal of the Institute of Obstetrics and Gynaecology.

[5]  S. Wen,et al.  Teenage pregnancy and adverse birth outcomes: a large population based retrospective cohort study. , 2007, International journal of epidemiology.

[6]  R. A. Mulinari,et al.  Impacto do estado nutricional no peso ao nascer de recém-nascidos de gestantes adolescentes , 2007 .

[7]  P. Keskinoğlu,et al.  Perinatal outcomes and risk factors of Turkish adolescent mothers. , 2007, Journal of pediatric and adolescent gynecology.

[8]  Antônio Chambô Filho,et al.  Prematuridade e baixo peso entre recém-nascidos de adolescentes primíparas Prematurity and low weight of newborns from primiparous adolescents according to age groups , 2006 .

[9]  M. Magalhães,et al.  Gestação na adolescência precoce e tardia: há diferença nos riscos obstétricos? , 2006 .

[10]  I. Goonewardene,et al.  Adverse effects of teenage pregnancy. , 2009, The Ceylon medical journal.

[11]  Ricardo Queiroz Gurgel,et al.  Peso ao nascer de recém-nascidos de mães adolescentes comparados com o de puérperas adultas jovens , 2005 .

[12]  M. Magalhães.  Aspectos da gravidez na adolescência em maternidade escola de Fortaleza , 2005 .

[13]  M. Erazo,et al.  Factores de riesgo asociados al bajo peso al nacer , 2004 .

[14]  S. Gama,et al.  [Some emotional repercussions of adolescent pregnancy in Rio de Janeiro, Brazil (1999-2001)]. , 2004, Cadernos de saude publica.

[15]  Gordon C. S. Smith,et al.  Teenage pregnancy and risk of adverse perinatal outcomes associated with first and second births: population based retrospective cohort study , 2001, BMJ : British Medical Journal.

[16]  C. Szwarcwald,et al.  Gravidez na adolescência como fator de risco para baixo peso ao nascer no Município do Rio de Janeiro, 1996 a 1998 , 2001 .

[17]  C. Szwarcwald,et al.  [The pregnancy during adolescence as a risk factor for low birth weight, Brazil]. , 2001, Revista de saude publica.

[18]  H. Bettiol,et al.  Maternal age, social changes, and pregnancy outcome in Ribeirão Preto, southeast Brazil, in 1978-79 and 1994. , 2000, Cadernos de saude publica.

[19]  A. D. A. B. Filho,et al.  A gravidez na adolescência é fator de risco para o baixo peso ao nascer? (Brasil) , 2000 .

[20]  H. Bettiol,et al.  [Comparison between two cohorts of adolescent mothers in municipality of the Southeastern, Brazil]. , 2000, Revista de saude publica.

[21]  M. Gudavalli,et al.  Adolescent pregnancy: positive perinatal outcome at a community hospital , 2000, Journal of perinatal medicine.

[22]  C. A. Segre,et al.  [Relationship between maternal weight gain and birthweight] , 1998, Jornal de pediatria.

[23]  Manuela Fleming.  Adolescência , 1992, PSICOLOGIA.

[24]  Antônio Augusto Moura da Silva,et al.  Associação entre idade, classe social e hábito de fumar maternos com peso ao nascer , 1992 .

[25]  R. Caldeyro-barcia,et al.  A simplified method for diagnosis of gestational age in the newborn infant. , 1978, The Journal of pediatrics.