<?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>S1679-49742017000100081</article-id>
<article-id pub-id-type="doi">10.5123/s1679-49742017000100009</article-id>
<title-group>
<article-title xml:lang="pt"><![CDATA[Partos cesáreos no Piauí: tendência e fatores associados no período 2000-2011]]></article-title>
<article-title xml:lang="es"><![CDATA[Partos por cesarea en Piauí: tendencia y factores asociados en el periodo 2000-2011]]></article-title>
<article-title xml:lang="en"><![CDATA[Cesarean sections in Piauí State: trend and associated factors in the period 2000-2011, Brazil]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Madeiro]]></surname>
<given-names><![CDATA[Alberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rufino]]></surname>
<given-names><![CDATA[Andréa Cronemberger]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Santos]]></surname>
<given-names><![CDATA[Aline Oliveira dos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidade Estadual do Piauí Núcleo de Pesquisa e Extensão em Saúde da Mulher ]]></institution>
<addr-line><![CDATA[Teresina PI]]></addr-line>
<country>Brazil</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2017</year>
</pub-date>
<volume>26</volume>
<numero>1</numero>
<fpage>81</fpage>
<lpage>90</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.iec.gov.br/scielo.php?script=sci_arttext&amp;pid=S1679-49742017000100081&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.iec.gov.br/scielo.php?script=sci_abstract&amp;pid=S1679-49742017000100081&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.iec.gov.br/scielo.php?script=sci_pdf&amp;pid=S1679-49742017000100081&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo  OBJETIVO: analisar a tendência da proporção de partos cesáreos e fatores associados no Piauí, Brasil, de 2000 a 2011.  MÉTODOS: estudo de série temporal e transversal, com dados dos partos hospitalares de primíparas registrados no Sistema de Informações sobre Nascidos Vivos (Sinasc).  RESULTADOS: a proporção de partos cesáreos aumentou de 34,4% em 2000 para 52,1% em 2011 (variação percentual anual +4,4; IC95% 3,6;5,1); mulheres brancas (RP=1,72; IC95% 1,63;1,86), com 40 anos ou mais de idade (RP=2,17; IC95% 2,09;2,28), com 12 anos ou mais de estudo (RP=1,86; IC95% 1,77;1,96), que realizaram sete ou mais consultas de pré-natal (RP=2,08; IC95% 1,97;2,18), residentes em municípios com mais de 300 mil habitantes (RP=1,68; IC95% 1,62;1,80) e com índice de desenvolvimento humano mais elevado (RP=1,61; IC95% 1,51;1,73) mostraram maiores proporções de partos cesáreos.  CONCLUSÃO: a ocorrência de partos cesáreos foi elevada e mais frequente em mulheres de baixo risco obstétrico.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  OBJETIVO: analizar la tendencia de cesáreas y factores asociados en Piauí, Brasil, de 2000 a 2011.  MÉTODOS: estudio de series temporales y transversal, con datos de todos los nacimientos hospitalarios de mujeres primíparas, proporcionados por el Sistema de Información sobre Nacidos Vivos (Sinac).  RESULTADOS: la proporción de cesáreas ha aumentado de 34,4% en 2000 para 52,1% en 2011 (variación porcentual anual de +4,4; IC95% 3,6;5,1); las mujeres blancas (RP=1,72; IC95% 1,63;1,86), mayores de 40 años (RP=2,17; IC95% 2,09;2,28), con más de 12 años de escolaridad (RP=1,86; IC95% 1,77;1,96), que hicieron 7 o más consultas prenatales (RP=2,08; IC95% 1,97;2,18) y que vivían en municipios con más de 300.000 habitantes (RP=1,68; IC95% 1,62;1,80) y con más alto Índice de Desarrollo Humano (RP=1,61; IC95% 1,51;1,73) mostraron mayor proporción de cesáreas.  CONCLUSION: la ocurrencia de partos por cesárea fue alta y más frecuente en mujeres de bajo riesgo obstétrico.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  OBJECTIVE:  to analyze trends in cesarean sections proportion and associated factors in Piauí State, Brazil, from 2000 to 2011.  METHODS:  this is a time series and cross-sectional study, with data of all institutional childbirths in primiparous, recorded on the Information System on Live Births (Sinasc).  RESULTS:  cesarean sections proportion increased from 34.4% in 2000 to 52.1% in 2011 (annual percentage change +4.4; 95%CI 3.6;5.1); white-skinned women (PR=1.72; 95%CI 1.63;1.86), over 40 years (PR=2.17; 95%CI 2.09;2.28), with more than 12 years of schooling (PR=1.86; 95%CI 1.77;1.96), who attended 7 or more prenatal care appointments (PR=2.08; 95%CI 1.97;2.18), residents in municipalities with over 300,000 inhabitants (PR=1.68; 95%CI 1.62;1.80) and with higher Human Development Index (PR=1.61; 95%CI 1.51;1.73) presented the highest cesarean sections proportion.  CONCLUSIONS:  the occurrence of cesarean sections was high and more frequent in women with low obstetric risk.]]></p></abstract>
<kwd-group>
<kwd lng="pt"><![CDATA[Cesárea]]></kwd>
<kwd lng="pt"><![CDATA[Tendências]]></kwd>
<kwd lng="pt"><![CDATA[Fatores de Risco]]></kwd>
<kwd lng="pt"><![CDATA[Desigualdades em Saúde]]></kwd>
<kwd lng="pt"><![CDATA[Estudos de Séries Temporais]]></kwd>
<kwd lng="pt"><![CDATA[Estudos Transversais]]></kwd>
<kwd lng="es"><![CDATA[Cesárea]]></kwd>
<kwd lng="es"><![CDATA[Tendencias]]></kwd>
<kwd lng="es"><![CDATA[Factores de Riesgo]]></kwd>
<kwd lng="es"><![CDATA[Desigualdades en la Salud]]></kwd>
<kwd lng="es"><![CDATA[Estudios de Series Temporales]]></kwd>
<kwd lng="es"><![CDATA[Estudios Transversales]]></kwd>
<kwd lng="en"><![CDATA[Cesarean Section]]></kwd>
<kwd lng="en"><![CDATA[Trends]]></kwd>
<kwd lng="en"><![CDATA[Risk Factors]]></kwd>
<kwd lng="en"><![CDATA[Health Inequalities]]></kwd>
<kwd lng="en"><![CDATA[Time Series Studies]]></kwd>
<kwd lng="en"><![CDATA[Cross-Sectional Studies]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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