<?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>0864-0300</journal-id>
<journal-title><![CDATA[Revista Cubana de Investigaciones Biomédicas]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Cubana Invest Bioméd]]></abbrev-journal-title>
<issn>0864-0300</issn>
<publisher>
<publisher-name><![CDATA[ECIMED]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0864-03002021000400005</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Enfermedad renal crónica y pronóstico de pacientes con COVID-19]]></article-title>
<article-title xml:lang="en"><![CDATA[Chronic kidney disease and prognosis of COVID-19 patients]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cobiellas Carballo]]></surname>
<given-names><![CDATA[Lázaro Ibrain]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bonet Chacón]]></surname>
<given-names><![CDATA[Linet]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Plasencia Urizarri]]></surname>
<given-names><![CDATA[Thais María]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Almaguer Mederos]]></surname>
<given-names><![CDATA[Luis Enrique]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital Universitario de Holguín &#8220;Vladimir Ilich Lenin&#8221;  ]]></institution>
<addr-line><![CDATA[ Holguín]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Ciencias Médicas de Holguín  ]]></institution>
<addr-line><![CDATA[ Holguín]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2021</year>
</pub-date>
<volume>40</volume>
<numero>3</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S0864-03002021000400005&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S0864-03002021000400005&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S0864-03002021000400005&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción:  La COVID-19 ha desatado una emergencia en salud pública de carácter internacional, pues ha infescado y provocado muertes a millones de personas, desatando así una crisis humanitaria nunca antes vista. Las muertes por COVID-19 también se han asociado a la presencia de algunas enfermedades crónicas.  Objetivo:  Evaluar la asociación entre la enfermedad renal crónica y el peor pronóstico de pacientes con COVID-19.  Métodos:  Se realizó una búsqueda en las bases de datos PubMed, Scopus, EBSCO Host, Clinical Key, Hinari y Cochrane. Se consultaron artículos publicados hasta el 30 de abril de 2020. Se incluyeron artículos observacionales con información relevante respecto al desenlace de pacientes con COVID-19 y enfermedad renal crónica.  Resultados:  Fueron incluidos 13 artículos que resumen la información de 8207 pacientes, de los que 405 (4,9 %) tenían enfermedad renal crónica. Se asoció la comorbilidad con un peor pronóstico en pacientes con COVID-19, con OR = 1,99 [IC 95 %: 1,13-3,52; Z = 2,37; p = 0,02] y heterogeneidad I2 = 47 %, (2 = 22,47 (p = 0,03). Al eliminar los estudios con mayor contribución a la heterogeneidad, se analizó información de 5924 pacientes y hubo una mayor asociación entre la enfermedad renal crónica y el peor pronóstico, con OR = 3,02 [IC 95 %: 1,79-5,10; Z = 4,15; p &lt; 0,0001] y heterogeneidad I2 = 0%, (2 = 3,78 (p = 0,88). Lo que se interpreta como que los pacientes con enfermedad renal crónica afectados con COVID-19 tienen una probabilidad tres veces mayor de presentar un peor pronóstico que la población general.  Conclusiones:  La enfermedad renal crónica empeora el pronóstico de los pacientes afectados con COVID-19.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction:  COVID-19 has triggered a global public health emergency, for it has infected and caused the death of millions of people, thus unleashing an unprecedented humanitarian crisis. Deaths due to COVID-19 have also been associated to the presence of several chronic diseases.  Objective:  Evaluate the association between chronic kidney disease and the worst prognosis of COVID-19 patients.  Methods:  A search was conducted in the databases PubMed, Scopus, EBSCO Host, Clinical Key, Hinari and Cochrane for observational papers published before 30 April 2020 which contained relevant information about the outcome of patients with COVID-19 and chronic kidney disease.  Results:  A total 13 papers were included which summarize information about 8 207 patients, 405 (4.9%) of them with chronic kidney disease. Comorbidity was associated to a worse prognosis of COVID-19 patients, with OR = 1.99 [CI 95%: 1.13-3.52; Z = 2.37; p = 0.02] and heterogeneity I2 = 47%, (2 = 22.47 (p = 0.03). After deleting the studies with a greater contribution to heterogeneity, an analysis was conducted of the information about 5 924 patients, finding a greater association between chronic kidney disease and worst prognosis, with OR = 3.02 [CI 95%: 1.79-5.10; Z = 4.15; p &lt; 0.0001] and heterogeneity I2 = 0%, (2 = 3.78 (p = 0.88). This implies that patients with chronic kidney disease affected by COVID-19 have three times as many chances of having a worse prognosis than the general population.  Conclusions:  Chronic kidney disease worsens the prognosis of COVID-19 patients.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[COVID-19]]></kwd>
<kwd lng="es"><![CDATA[comorbilidad]]></kwd>
<kwd lng="es"><![CDATA[enfermedad renal crónica]]></kwd>
<kwd lng="es"><![CDATA[pronóstico]]></kwd>
<kwd lng="es"><![CDATA[SARS-CoV-2]]></kwd>
<kwd lng="en"><![CDATA[COVID-19]]></kwd>
<kwd lng="en"><![CDATA[comorbidity]]></kwd>
<kwd lng="en"><![CDATA[chronic kidney disease]]></kwd>
<kwd lng="en"><![CDATA[prognosis]]></kwd>
<kwd lng="en"><![CDATA[SARS-CoV-2]]></kwd>
</kwd-group>
</article-meta>
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