<?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>0034-7434</journal-id>
<journal-title><![CDATA[Revista Colombiana de Obstetricia y Ginecología]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Colomb Obstet Ginecol]]></abbrev-journal-title>
<issn>0034-7434</issn>
<publisher>
<publisher-name><![CDATA[Federación Colombiana de Obstetricia y GinecologíaRevista Colombiana de Obstetricia y Ginecología]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0034-74342012000200003</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Factores de riesgo para diabetes gestacional en población obstétrica en tres instituciones de Medellín, Colombia: Estudio de casos y controles]]></article-title>
<article-title xml:lang="en"><![CDATA[Risk factors for gestational diabetes in an obstetric population in three institutions in Medellín, Colombia: a case-control study]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Campo-Campo]]></surname>
<given-names><![CDATA[María Nazareth]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Posada-Estrada]]></surname>
<given-names><![CDATA[Guadalupe]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Betancur-Bermúdez]]></surname>
<given-names><![CDATA[Laura Catalina]]></given-names>
</name>
<xref ref-type="aff" rid="A03"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Jaramillo-Quiceno]]></surname>
<given-names><![CDATA[Diana Milena]]></given-names>
</name>
<xref ref-type="aff" rid="A03"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Universidad Pontificia Bolivariana (UPB) Facultad de Medicina Ginecoobstetricia y Epidemiología Clínica]]></institution>
<addr-line><![CDATA[Medellín ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="A02">
<institution><![CDATA[,Universidad Pontificia Bolivariana (UPB) Facultad de Medicina Ginecoobstetricia y Epidemiología Clínica]]></institution>
<addr-line><![CDATA[Medellín ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="A03">
<institution><![CDATA[,Universidad Pontificia Bolivariana (UPB) Facultad de Medicina ]]></institution>
<addr-line><![CDATA[Medellín ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2012</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2012</year>
</pub-date>
<volume>63</volume>
<numero>2</numero>
<fpage>114</fpage>
<lpage>118</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0034-74342012000200003&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0034-74342012000200003&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0034-74342012000200003&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Objetivo: evaluar los factores de riesgo (FR) para diabetes mellitus gestacional en una población obstétrica en Colombia. Materiales y métodos: estudio de casos y controles retrospectivo. Población de mujeres gestantes atendidas en tres clínicas privadas de alta complejidad que atienden población del régimen contributivo de la ciudad de Medellín, en el periodo de junio de 2005 a mayo de 2007. Se excluyeron pacientes con diabetes pregestacional. Se definió como caso: pacientes gestantes o en posparto inmediato con diagnóstico de DMG. Los controles: pacientes en posparto sin DMG. Tamaño muestral: 215 casos y 430 controles. Con base en un OR estimado de 2,3. Relación 2 controles:1 caso, con proporción de exposición entre los controles de 7%, confianza de 95%, poder 80%. Resultados: se incluyeron 244 casos (36,6%) y 423 controles (63,4%). Se encontró asociación estadística con el antecedente personal de DMG (OR = 16,6; IC 95%: 4,9-55,7), el antecedente de macrosomía (OR = 7,3; IC 95%: 3,6-15,1), la edad &ge; 25 años (OR = 5,5; IC 95%: 3,6-8,5), multiparidad (OR = 2,6; IC 95%: 1,8-3,8), el IMC previo a la gestación &ge; 25 kg/m² (OR = 3,1; IC 95%: 2,2-4,4) e IMC al inicio del segundo trimestre &ge; 25 kg/m² (OR = 3,5; IC 95%: 2,1-5,7). Conclusión: además de los factores de riesgo re portados en la literatura, se encontró la macrosomía, la multiparidad, y la obesidad pregestacional y ges tacional como factores independientes para DMG.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Objective: Evaluating risk factors (FR) for gestational diabetes mellitus (GDM) in an obstetric population in Colombia. Materials and methods: This was a retrospective case-control study. The population consisted of pregnant females being seen at three private high-complexity clinics, attending the contributory regimen population in the city of Medellín from June 2005 to May 2007. Patients suffering pregestational diabetes were excluded. A case was defined as being a pregnant patient or female in the immediate postpartum period diagnosed with GDM. Controls consisted of patients in the postpartum with no GDM. Results: Data regarding 244 cases (36.6%) and 423 controls (63.4%) were included. Statistical association was found with personal background of GDM (OR = 16.6; 4.9-55.7 95% CI), a background of macrosomy (OR = 7.3; 3.6-15.1 95% CI), being aged &ge; 25 years (OR = 5.5: 3.61-8.5 95% CI), multiparity (OR = 2.6; 1.8-3.8 95% CI), &ge; 25 kg/m² BMI prior to gestation (OR = 3.1; 2.2-4.4 95% CI) &ge; 25 kg/m² BMI at the start of the second trimester (OR 3.5; 2.1-5.7 95% CI). Conclusion: As well as the risk factors reported in the literature, macrosomy, multiparity, pregestational and gestational obesity were also found to be independent factors for GDM.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[diabetes gestacional]]></kwd>
<kwd lng="es"><![CDATA[factores de riesgo]]></kwd>
<kwd lng="es"><![CDATA[macrosomía]]></kwd>
<kwd lng="es"><![CDATA[obesidad]]></kwd>
<kwd lng="en"><![CDATA[Gestational diabetes]]></kwd>
<kwd lng="en"><![CDATA[risk factors]]></kwd>
<kwd lng="en"><![CDATA[macrosomy]]></kwd>
<kwd lng="en"><![CDATA[obesity]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[  <font face="verdana" size="2"> <font size="4">    <center><b>Factores de riesgo para diabetes gestacional en poblaci&oacute;n obst&eacute;trica en tres instituciones de Medell&iacute;n, Colombia. Estudio de casos y controles </b></center></font>     <p>    <center>    <p>Mar&iacute;a Nazareth Campo-Campo, M.D.<sup>1</sup>, Guadalupe Posada-Estrada, M.D.<sup>2</sup>, Laura Catalina Betancur-Berm&uacute;dez<sup>3</sup>, Diana Milena Jaramillo-Quiceno<sup>3</sup></p></center></p>     <p>    <center>    <p>Recibido: enero 17/12 - Aceptado: junio 22/12 </p></center></p>     <p><sup>1</sup> M&eacute;dico ginecoobstetra. Docente Facultad de Medicina, Universidad Pontificia Bolivariana (UPB). Mag&iacute;ster en Epidemiolog&iacute;a Cl&iacute;nica, CES. Medell&iacute;n, Colombia. <a href="mailto:marianaza@hotmail.com">marianaza@hotmail.com</a></p>     <p><sup>2</sup> M&eacute;dico ginecoobstetra. Docente Facultad de Medicina, Universidad Pontificia Bolivariana (UPB). Mag&iacute;ster en Epidemiolog&iacute;a Cl&iacute;nica, CES. Medell&iacute;n, Colombia. </p>     ]]></body>
<body><![CDATA[<p><sup>3</sup> Estudiante pregrado &aacute;rea de investigaci&oacute;n, Facultad de Medicina,    Universidad Pontificia Bolivariana (UPB). Medell&iacute;n, Colombia.</p>     <p><b>RESUMEN</b></p>     <p><b>Objetivo:</b> evaluar los factores de riesgo (FR) para diabetes mellitus gestacional en una poblaci&oacute;n obst&eacute;trica en Colombia. </p>     <p><b>Materiales y m&eacute;todos:</b> estudio de casos y controles retrospectivo. Poblaci&oacute;n de mujeres gestantes atendidas en tres cl&iacute;nicas privadas de alta complejidad que atienden poblaci&oacute;n del r&eacute;gimen contributivo de la ciudad de Medell&iacute;n, en el periodo de junio de 2005 a mayo de 2007. Se excluyeron pacientes con diabetes pregestacional. Se defini&oacute; como caso: pacientes gestantes o en posparto inmediato con diagn&oacute;stico de DMG. Los controles: pacientes en posparto sin DMG. Tama&ntilde;o muestral: 215 casos y 430 controles. Con base en un OR estimado de 2,3. Relaci&oacute;n 2 controles:1 caso, con proporci&oacute;n de exposici&oacute;n entre los controles de 7%, confianza de 95%, poder 80%. </p>     <p><b>Resultados:</b> se incluyeron 244 casos (36,6%) y 423 controles (63,4%). Se encontr&oacute; asociaci&oacute;n estad&iacute;stica con el antecedente personal de DMG (OR = 16,6; IC 95%: 4,9-55,7), el antecedente de macrosom&iacute;a (OR = 7,3; IC 95%: 3,6-15,1), la edad &ge; 25 a&ntilde;os (OR = 5,5; IC 95%: 3,6-8,5), multiparidad (OR = 2,6; IC 95%: 1,8-3,8), el IMC previo a la gestaci&oacute;n &ge; 25 kg/m&sup2; (OR = 3,1; IC 95%: 2,2-4,4) e IMC al inicio del segundo trimestre &ge; 25 kg/m&sup2; (OR = 3,5; IC 95%: 2,1-5,7).</p>     <p><b>Conclusi&oacute;n</b>: adem&aacute;s de los factores de riesgo re   portados en la literatura, se encontr&oacute; la macrosom&iacute;a,    la multiparidad, y la obesidad pregestacional y ges tacional como factores independientes para DMG.</p>     <p><b>Palabras clave</b>: diabetes gestacional, factores de  riesgo, macrosom&iacute;a, obesidad.</p> <font size="4">    <center><b>Risk factors for gestational diabetes in an obstetric population in three institutions in Medell&iacute;n, Colombia: a case-control study </b></center></font>     <p><b>ABSTRACT</b></p>     <p><b>Objective:</b> Evaluating risk factors (FR) for gestational diabetes mellitus (GDM) in an obstetric population in Colombia. </p>     ]]></body>
<body><![CDATA[<p><b>Materials and methods:</b> This was a retrospective case-control study. The population consisted of pregnant females being seen at three private high-complexity clinics, attending the contributory regimen population in the city of Medell&iacute;n from June 2005 to May 2007. Patients suffering pregestational diabetes were excluded. A case was defined as being a pregnant patient or female in the immediate postpartum period diagnosed with GDM. Controls consisted of patients in the postpartum with no GDM. </p>     <p><b>Results:</b> Data regarding 244 cases (36.6%) and 423 controls (63.4%) were included. Statistical association was found with personal background of GDM (OR = 16.6; 4.9-55.7 95% CI), a background of macrosomy (OR = 7.3; 3.6-15.1 95% CI), being aged &ge; 25 years (OR = 5.5: 3.61-8.5 95% CI), multiparity (OR = 2.6; 1.8-3.8 95% CI), &ge; 25 kg/m&sup2; BMI prior to gestation (OR = 3.1; 2.2-4.4 95% CI) &ge; 25 kg/m&sup2; BMI at the start of the second trimester (OR 3.5; 2.1-5.7 95% CI). </p>     <p><b>Conclusion:</b> As well as the risk factors reported in the literature, macrosomy, multiparity, pregestational and gestational obesity were also found to be independent factors for GDM. </p>     <p><b>Key words: </b>Gestational diabetes, risk factors, macrosomy, obesity. </p>     <p><b>INTRODUCCI&Oacute;N</b></p>     <p>La diabetes mellitus gestacional (DMG) es el trastorno metab&oacute;lico m&aacute;s com&uacute;n durante la gestaci&oacute;n, con una prevalencia en promedio de 7% de acuerdo con la poblaci&oacute;n estudiada y la prueba de diagn&oacute;stico utilizada (1). Es definida como una intolerancia a los carbohidratos detectada por primera vez durante el embarazo (2). El 90% de las pacientes a las que se le diagnostica la diabetes por primera vez durante el embarazo presentan DMG; el restante 10% est&aacute; conformado por mujeres con diabetes pregestacional (tipo 1 o 2), que no sab&iacute;an su diagn&oacute;stico (3, 4). En Colombia, en el Hospital Universitario del Valle se encontr&oacute; una incidencia de 0,34% (5); en otros estudios es del 1,43% y aumenta a un 2,03% usando los criterios diagn&oacute;sticos sugeridos por Carpenter y Coustan (6). </p>     <p>Los factores de riesgo (FR) m&aacute;s reportados para DMG son: antecedente personal de diabetes gestacional, que aumenta el riesgo 33-50%, y a&uacute;n m&aacute;s si hay un segundo FR (7). Los hispanos son considerados como poblaci&oacute;n de alto riesgo (8, 9) pero no es claro si el riesgo corresponde a los hispanos que viven en Estados Unidos o en Europa. Otros factores descritos son la historia familiar en primer grado de diabetes mellitus (DM), edad materna (&gt; 25 a&ntilde;os), sobrepeso previo al embarazo (IMC &gt; 25), antecedente obst&eacute;trico adverso (mortinatos, peso fetal &gt; 4000 g), multiparidad (tres o m&aacute;s hijos) (9). Existen reportes de que el riesgo aumenta a mayor ganancia de peso y edad de la paciente con cada nuevo embarazo (10). Otros FR no son concluyentes en su asociaci&oacute;n con DMG: factores maternos, raza, ganancia de peso en el embarazo, estatura baja, rasgo Thalasemia, s&iacute;ndrome de ovario poliqu&iacute;stico, glucosuria, e historia de pobre resultado obst&eacute;trico (11). </p>     <p>Existe escasa informaci&oacute;n sobre los factores que incrementan el riesgo para DMG en nuestra poblaci&oacute;n, algunos autores indican que los FR deben ser definidos para cada poblaci&oacute;n, dadas las diferencias raciales, culturales y nutricionales (12, 13). En Colombia, los estudios existentes (5, 6) no definen dichos factores. Por tanto, el objetivo del presente estudio es evaluar los factores de riesgo (FR) para DMG en una poblaci&oacute;n obst&eacute;trica en Colombia. </p>     <p><b>MATERIALES Y M&Eacute;TODOS </b></p>     <p>Estudio de casos y controles retrospectivo. Poblaci&oacute;n de mujeres gestantes atendidas en tres cl&iacute;nicas privadas de alta complejidad que atienden poblaci&oacute;n del r&eacute;gimen contributivo de la ciudad de Medell&iacute;n, Colombia en el periodo de junio de 2005 a mayo de 2007. Se excluyeron pacientes con diabetes pregestacional. La investigaci&oacute;n fue aprobada por el comit&eacute; de &eacute;tica de cada instituci&oacute;n. </p>     ]]></body>
<body><![CDATA[<p>Se defini&oacute; como caso: pacientes en la primera semana posparto con DMG, diagn&oacute;stico realizado por tamizaje O&rsquo;Sullivan &ge; 130 mg/dl y la curva de tolerancia a la glucosa (tres horas) con dos o m&aacute;s valores alterados seg&uacute;n criterios de Carpenter y Coustan (12, 14, 15). Control: pacientes en la primera semana posparto con tamizaje negativo para DMG, quienes tuvieron un embarazo sin complicaciones. La curva fue positiva por la presencia de dos valores positivos en los casos, y negativa con menos de dos valores positivos en los controles.</p>     <p><b>Tama&ntilde;o muestral:</b> 215 casos y 430 controles.   La muestra se calcul&oacute; utilizando la f&oacute;rmula de Joseph   L. Fleiss (16), a partir de un OR estimado de 2,3 (11,   17). Relaci&oacute;n 2 controles:1 caso, con proporci&oacute;n de   exposici&oacute;n entre los controles de 7% (1), confianza   de 95%, poder 80%.  </p>     <p>Se realiz&oacute; un muestreo consecutivo de los casos,   en el momento de captar un caso, de manera   aleatoria se identificaban dos controles atendidos en   la misma semana de caracter&iacute;sticas semejantes en   quienes el tamizaje fue negativo para DMG.  </p>     <p><b>Procedimiento:</b> los casos y los controles se   captaron por revisi&oacute;n detallada de la historia cl&iacute;nica   y la hoja inform&aacute;tica prenatal del Centro Latinoamericano   de Perinatolog&iacute;a (CLAP). La informaci&oacute;n   se tom&oacute; en un formato espec&iacute;ficamente diligenciado   para el estudio. En caso de encontrar informaci&oacute;n   incompleta en la historia cl&iacute;nica o en el registro de   CLAP, se proced&iacute;a a comunicaci&oacute;n con la paciente.  </p>     <p><b>Variables por medir:</b> edad, estrato socioecon&oacute;mico,   raza, &iacute;ndice de masa corporal antes y   durante el embarazo, paridad, v&iacute;a del parto; estos   requisitos se registran en el CLAP y al ingreso a las   instituciones.  </p>     <p><b>An&aacute;lisis estad&iacute;stico:</b> las variables num&eacute;ricas   se presentan mediante medidas de tendencia central   y dispersi&oacute;n, las variables categ&oacute;ricas mediante   proporciones. Se comparan las caracter&iacute;sticas basales   de los casos y los controles mediante la prueba   T-student para variables continuas y el chi-cuadrado   para categ&oacute;ricas. La asociaci&oacute;n de los factores de   exposici&oacute;n y la DMG se realiz&oacute; mediante el OR, y   su correspondiente intervalo de confianza del 95%.  </p>     <p><b>RESULTADOS</b> </p>     <p>Se evalu&oacute; un total de 667 pacientes (244 casos y 423   controles), el 68,5% provino de la Cl&iacute;nica Universitaria   Bolivariana (CUB), el 22,5% de SaludCoop   y el 9% del Prado.  </p>     <p>El 96% de las pacientes pertenec&iacute;an a los estratos   1 al 3. La edad promedio de los casos fue de 32 a&ntilde;os   (DS &plusmn; 6 a&ntilde;os) y en los controles fue de 26 a&ntilde;os (SD &plusmn; 6,5 a&ntilde;os) (p = < 0,0001); raza mestiza, 81%   casos y 73% controles; raza blanca, 17% frente a   24%; raza negra, 2% frente a 1,9% (p = 0,01). La   mediana de hijos para los casos fue de dos y para los controles de uno. El promedio de tamizaje en el grupo caso fue de 170 &plusmn; 27,8 mg/dl, y en los controles de 101,7 &plusmn; 25,7 mg/dl (valor p = 0,001). El 25% de los casos y el 16% de los controles presentaron parto por ces&aacute;rea (p = 0,004). </p>     <p>Los factores asociados a la presencia de DMG fueron el antecedente personal de DMG, la edad mayor 25 a&ntilde;os, el antecedente de DM familiar, el antecedente de macrosom&iacute;a fetal, el &iacute;ndice de masa corporal mayor a 25 antes el embarazo, y tener 3 o m&aacute;s hijos (<a href="#Tabla1">tabla 1</a>). </p>     ]]></body>
<body><![CDATA[<p>    <center><a name="Tabla1"></a><img src="/img/revistas/rcog/v63n2/v63n2a03t1.jpg"></center></p>     <p><b>DISCUSI&Oacute;N</b></p>     <p>El presente estudio es el primero del pa&iacute;s en identificar los FR para DMG que se presentan en nuestra poblaci&oacute;n con el m&eacute;todo diagn&oacute;stico utilizado en ese momento, con dos valores alterados al realizar la curva de tolerancia a la glucosa de tres horas. Actualmente se est&aacute; en consenso de cambio de m&eacute;todo diagn&oacute;stico seg&uacute;n los resultados del estudio HAPO, la carga de glucosa de 75 g, y medici&oacute;n de niveles de glucosa en ayunas, una y dos horas posterior a la carga (18-20). El FR con mayor fuerza de asociaci&oacute;n fue el antecedente de DMG, semejante a lo informado por otros autores (1, 10, 15, 21, 22). Encontramos tambi&eacute;n que el IMC &gt; 25 es factor de riesgo independiente en nuestra poblaci&oacute;n, en concordancia con diferentes autores (23-26). Nuestro hallazgo acerca del antecedente de macrosom&iacute;a ha sido tambi&eacute;n informado previamente, aunque otros autores no lograron establecer esta asociaci&oacute;n (3, 23, 24, 27, 28). Respecto a la multiparidad nuestros resultados son consistentes con otros reportes (29-31), sin embargo, otros autores no la asocian a mayor riesgo (17, 32, 34). Algunos la asocian al incremento con la edad y al aumento de peso (12). </p>     <p><b>CONCLUSI&Oacute;N</b></p>     <p>El antecedente personal de DMG, el antecedente familiar de DM y el IMC mayor a 25% al inicio del embarazo se confirman como factores de riesgo para DM; se encontraron otros que no son considerados FR alto independiente para DMG, como la obesidad previa al embarazo y la macrosom&iacute;a en un hijo anterior. </p>     <p><b>AGRADECIMIENTOS</b></p>      <p>Los autores agradecen a todo el equipo cient&iacute;fico y revisor, y a los departamentos de archivo de las tres instrucciones. </p>      <p><b>REFERENCIAS</b></p>         <!-- ref --><p>1. American Diabetes Association. Gestational Diabetes Mellitus. 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