<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1679-4974</journal-id>
<journal-title><![CDATA[Epidemiologia e Serviços de Saúde]]></journal-title>
<abbrev-journal-title><![CDATA[Epidemiol. Serv. Saúde]]></abbrev-journal-title>
<issn>1679-4974</issn>
<publisher>
<publisher-name><![CDATA[Secretaria de Vigilância em Saúde e Ambiente - Ministério da Saúde do Brasil]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1679-49742020000100025</article-id>
<article-id pub-id-type="doi">10.5123/s1679-49742020000100024</article-id>
<title-group>
<article-title xml:lang="pt"><![CDATA[Intenção de amamentar, duração do aleitamento materno e motivos para o desmame: um estudo de coorte, Pelotas, RS, 2014]]></article-title>
<article-title xml:lang="es"><![CDATA[Intención de amamantar, duración de la lactancia materna y motivos para la ablactación: estudio de cohorte, Pelotas, RS, Brasil, 2014]]></article-title>
<article-title xml:lang="en"><![CDATA[Maternal intention to breastfeed, duration of breastfeeding and reasons for weaning: a cohort study, Pelotas, RS, Brazil, 2014]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Amaral]]></surname>
<given-names><![CDATA[Sheila Afonso do]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bielemann]]></surname>
<given-names><![CDATA[Renata Moraes]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Del-Ponte]]></surname>
<given-names><![CDATA[Bianca]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Valle]]></surname>
<given-names><![CDATA[Neiva Cristina Jorge]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Costa]]></surname>
<given-names><![CDATA[Caroline dos Santos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Oliveira]]></surname>
<given-names><![CDATA[Martiele da Silva]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Santos]]></surname>
<given-names><![CDATA[Iná S.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidade Federal de Pelotas Programa de Pós-Graduação em Nutrição e Alimentos ]]></institution>
<addr-line><![CDATA[Pelotas RS]]></addr-line>
<country>Brazil</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidade Federal de Pelotas Programa de Pós-Graduação em Epidemiologia ]]></institution>
<addr-line><![CDATA[Pelotas RS]]></addr-line>
<country>Brazil</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2020</year>
</pub-date>
<volume>29</volume>
<numero>1</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.iec.gov.br/scielo.php?script=sci_arttext&amp;pid=S1679-49742020000100025&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.iec.gov.br/scielo.php?script=sci_abstract&amp;pid=S1679-49742020000100025&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.iec.gov.br/scielo.php?script=sci_pdf&amp;pid=S1679-49742020000100025&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo  Objetivo: avaliar a intenção materna de amamentar, duração do aleitamento materno até os 24 meses e os motivos para o desmame no primeiro ano de vida.  Métodos: trata-se de estudo de coorte realizado em Pelotas, RS, Brasil, com participantes do Multi-Centre Body Composition Study; para a análise da duração da amamentação, utilizou-se tábua de vida.  Resultados: das 1.377 mães rastreadas, 74,3% relataram intenção de amamentar exclusivamente até os 6 meses, enquanto 91,1% pretendiam prolongar o aleitamento materno até pelo menos os 12 meses; até pelo menos 6 meses, 58,0% das crianças foram amamentadas; a mediana da amamentação foi de 10,8 meses (IIQ: 5,8 a 23,0); os principais motivos relatados para desmame foram leite insuficiente (57,3%), retorno ao trabalho/escola (45,5%) e recusa inexplicável do bebê (40,1%).  Conclusão: apesar da intenção de amamentar, persistem barreiras estruturais e sociais que interferem no sucesso da amamentação, especialmente as relacionadas ao trabalho materno.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Objetivo: evaluar la intención materna de amamantar, la duración de la lactancia materna hasta los 24 meses de edad y los motivos para la ablactación en el primer año de vida.  Métodos: se trata de un estudio de cohorte realizado en Pelotas, RS, Brasil, con participantes del Multi-Centre Body Composition Study; para el análisis de la duración de la lactancia, se utilizó la tabla de vida.  Resultados: de las 1.377 madres rastreadas, el 74,3% tenía intención de amamantar exclusivamente hasta los 6 meses, mientras que el 91,1% pretendía prolongarla hasta por lo menos los 12 meses; el 58,0% de los niños fueron amamantados hasta, al menos, los 6 meses; la mediana de la lactancia fue de 10,8 meses (IIQ: 5,8 a 23,0); los principales motivos para el destete fueron: leche insuficiente (57,3%), retorno al trabajo/escuela (45,5%) y la negativa inexplicable del bebé (40,1%).  Conclusión: los resultados muestran que, a pesar de la intención de amamantar, todavía hay barreras estructurales y sociales que interfieren en el éxito de la lactancia, especialmente los relacionados con el trabajo materno.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Objective: to evaluate maternal intention to breastfeed, duration of breastfeeding up to 24 months-of-age and reasons for weaning in the first year of life.  Methods: this was a cohort study conducted in Pelotas, RS, Brazil, with participants from the Multi-Center Body Composition Study; a life table was used to analyze duration of breastfeeding.  Results: of the 1377 mothers screened, 74.3% reported intending to exclusively breastfeed up until 6 months, while 91.1% intended to prolong breastfeeding until at least 12 months; 58.0% of children were breastfed up to at least 6 months; median breastfeeding duration was 10.8 months (IQR: 5.8 - 23.0); the main reasons reported for weaning were insufficient breast milk (57.3%), return to work/school (45.5%), and unexplained refusal by the baby (40.1%).  Conclusion: the results show that despite the intention to breastfeed, there are still structural and social barriers that interfere with successful breastfeeding, especially those related to working mothers.]]></p></abstract>
<kwd-group>
<kwd lng="pt"><![CDATA[Aleitamento Materno]]></kwd>
<kwd lng="pt"><![CDATA[Intenção]]></kwd>
<kwd lng="pt"><![CDATA[Desmame]]></kwd>
<kwd lng="pt"><![CDATA[Estudos Longitudinais]]></kwd>
<kwd lng="es"><![CDATA[Lactancia Materna]]></kwd>
<kwd lng="es"><![CDATA[Intención]]></kwd>
<kwd lng="es"><![CDATA[Destete]]></kwd>
<kwd lng="es"><![CDATA[Estudios Longitudinales]]></kwd>
<kwd lng="en"><![CDATA[Breast Feeding]]></kwd>
<kwd lng="en"><![CDATA[Intention]]></kwd>
<kwd lng="en"><![CDATA[Weaning]]></kwd>
<kwd lng="en"><![CDATA[Longitudinal Studies]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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