<?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>1699-695X</journal-id>
<journal-title><![CDATA[Revista Clínica de Medicina de Familia]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Clin Med Fam]]></abbrev-journal-title>
<issn>1699-695X</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Española de Medicina de Familia y Comunitaria]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1699-695X2017000200078</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Prevalencia de insuficiencia renal crónica y factores asociados en el &#8220;anciano joven&#8221;]]></article-title>
<article-title xml:lang="en"><![CDATA[Prevalence of chronic kidney disease and associated factors in the &#8220;young elderly&#8221;]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arriola-Hernández]]></surname>
<given-names><![CDATA[Maite]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez-Clérigo]]></surname>
<given-names><![CDATA[Iratxe]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Nieto-Rojas]]></surname>
<given-names><![CDATA[Isabel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mota-Santana]]></surname>
<given-names><![CDATA[Reinilda]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Alonso-Moreno]]></surname>
<given-names><![CDATA[Francisco Javier]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Orueta-Sánchez]]></surname>
<given-names><![CDATA[Ramón]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Centro de Salud de Sillería  ]]></institution>
<addr-line><![CDATA[Toledo ]]></addr-line>
<country>España</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Unidad Docente Multiprofesional de Atención Familiar y Comunitaria de Toledo  ]]></institution>
<addr-line><![CDATA[Toledo ]]></addr-line>
<country>España</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2017</year>
</pub-date>
<volume>10</volume>
<numero>2</numero>
<fpage>78</fpage>
<lpage>85</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_arttext&amp;pid=S1699-695X2017000200078&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_abstract&amp;pid=S1699-695X2017000200078&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_pdf&amp;pid=S1699-695X2017000200078&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  Objetivo.  Conocer la función renal, y la posible relación de su deterioro con distintas variables, en un grupo de población de entre 65 y 74 años.  Diseño.  Observacional y transversal para el estudio de la prevalencia y de asociación cruzada para el estudio de las variables relacionadas con el deterioro.  Participantes.  Personas de 65 a 74 años adscritas a un Centro de Salud. Tamaño muestral calculado para una prevalencia estimada del 11 %, una precisión del 2 %, unas pérdidas/rechazos esperados del 10 % y un nivel de confianza del 95 %.  Resultados.  Población estudiada final de 388 personas (4,2 % perdidas). El filtrado glomerular (FG) medio fue de 78,86 (IC 95 %: 77,37-80,35) según CKD-EPI y de 85,15 (IC 95 %: 82,28-87,02) según MDRD-4. La prevalencia de IRC fue 11,1 % (IC 95 %: 9,2-12,9) según CKD-EPI y de 7,5 % (IC 95 %: 5,9-9,1) según MDRD-4, con un porcentaje en estadio 2 de la clasificación de la KDIGO del 63,7 % (IC 95 %: 60,9-66,6) y del 55,2 % (IC 95 %: 52,3-58,1) respectivamente. En el análisis multivariante por regresión lineal múltiple, la presencia de IRC y de reducción del FG se asociaron con mayor edad (p=0,06 y p&lt;0,01), sexo masculino (p&lt;0,01 en ambos casos) y consumo de mayor número de fármacos (p&lt;0,01 y p&lt;0,05).  Conclusiones.  Alta prevalencia de deterioro de la función renal en este grupo de edad, actuando la edad, el sexo y el consumo de medicamentos como factores predictores de dicho deterioro. Confirmación de la mayor sensibilidad de CKD-EPI sobre MDRD-4 para detectar deterioro.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  Objective.  To assess the renal function in a population group, aged 65 to 74 years, and to analyse the possible relationship between declining renal function with different variables.  Design.  Cross-sectional observational study of prevalence and analysis of the variables involved in renal function decline.  Participants.  Patients, aged 65 to 74 years, assigned to a health centre. The sample size was calculated for an estimated prevalence of 11%, with 2% accuracy and expected losses / rejections of 10%, and a confidence interval of 95%.  Results.  Final study population included 388 people (4.2% of loss). The average glomerular filtration rate (GFR) was 78.86 (95%CI 77.37 to 80.35) according to CKD-EPI and 85.15 (95%CI 82.28 to 87.02) according to MDRD-4. The prevalence of CKD was 11.1% (95%CI 9.2 to 12.9) according to CKD-EPI and 7.5% (95%CI 5.9 to 9.1) according to MDRD-4, with a percentage of 63.7% (95%CI 60.9 to 66.6) and 55.2% (95%CI 52.3 to 58.1) respectively in stage 2 of KDIGO classification. In multivariate analysis by multiple linear regression, the presence of CKD and decrease in GFR were associated with older age (p=0.06 and p &lt;0.01), male (p &lt;0.01 in both cases) and a greater number of drugs consumed (p &lt;0.01 and p &lt;0.05).  Conclusions.  High prevalence of impaired renal function in this age group, with age, sex and drug use as predicting factors of declining renal function. Confirmation of the increased sensitivity of CKD-EPI over MDRD-4 to detect this deterioration.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Insuficiencia Renal Crónica]]></kwd>
<kwd lng="es"><![CDATA[Tasa de Filtración Glomerular]]></kwd>
<kwd lng="es"><![CDATA[Anciano]]></kwd>
<kwd lng="en"><![CDATA[Renal Insufficiency Chronic]]></kwd>
<kwd lng="en"><![CDATA[Glomerular Filtration Rate]]></kwd>
<kwd lng="en"><![CDATA[Aged]]></kwd>
</kwd-group>
</article-meta>
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