<?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>0864-0289</journal-id>
<journal-title><![CDATA[Revista Cubana de Hematología, Inmunología y Hemoterapia]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Cubana Hematol Inmunol Hemoter]]></abbrev-journal-title>
<issn>0864-0289</issn>
<publisher>
<publisher-name><![CDATA[Centro Nacional de Información de Ciencias MédicasEditorial Ciencias Médicas]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0864-02892024000100006</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Proteína C reactiva como predictor de gravedad en pacientes con COVID-19]]></article-title>
<article-title xml:lang="en"><![CDATA[C-reactive protein as predictor of gravity in patients with COVID-19]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Reyes Cepero]]></surname>
<given-names><![CDATA[Yudania]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Herrera Mendoza]]></surname>
<given-names><![CDATA[Geronimo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Aquino Reyes]]></surname>
<given-names><![CDATA[Abel Alfonso]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Aquino Perna]]></surname>
<given-names><![CDATA[Angel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Zaila Lago]]></surname>
<given-names><![CDATA[Edisley]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital General Provincial &#8220;Camilo Cienfuegos&#8221;  ]]></institution>
<addr-line><![CDATA[ Sancti Spíritus]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Sancti Spíritus &#8220;José Martí Pérez&#8221;  ]]></institution>
<addr-line><![CDATA[ Sancti Spíritus]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2024</year>
</pub-date>
<volume>40</volume>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S0864-02892024000100006&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S0864-02892024000100006&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S0864-02892024000100006&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción:  Numerosos estudios han reportado que la gravedad de la COVID-19 está más asociada con altos niveles de proteína C reactiva que en la enfermedad no grave; sin embargo, existen controversias en los resultados.  Objetivo:  Determinar si la proteína C reactiva es un biomarcador de gravedad en pacientes con COVID-19.  Métodos: Se realizó un estudio retrospectivo descriptivo en 148 pacientes ingresados en el Hospital Provincial General Camilo Cienfuegos de Sancti Spíritus en el mes de junio de 2021. La variable analizada fue proteína C reactiva. Se comparó la media entre grupos: graves y no graves mediante la prueba t Student para muestras independientes con un nivel de significación de 0,05. La capacidad predictora del biomarcador se determinó con el análisis de la curva ROC. Se evaluó la exactitud diagnóstica.  Resultados: El valor medio de proteína C reactiva en el grupo de los graves y no graves fue 106,73 (88,43-125,03) y 26,87 (23,51-30,23), respectivamente; con diferencias altamente significativas. El área bajo la curva ROC fue de 0,991 (0,975-1,000). La mayor sensibilidad y la menor razón de falsos positivos para discriminar entre ambos grupos se encontró en 47,1 mg/L.  Conclusiones: La capacidad predictora de gravedad de la prueba fue excelente. El punto de corte óptimo para definir la probabilidad de evolucionar hacia la gravedad de un paciente fue de 47,1 mg/L. La cuantificación de este parámetro bioquímico podría optimizar estrategias diagnósticas y terapéuticas.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction: Several studies have reported that severe COVID-19 is associated with higher levels of C reactive protein than mild disease; however, there are controversy in the results.  Objective: To determine whether C-reactive protein is a biomarker of severity in patients with COVID-19.  Methods:  A retrospective and descriptive study was carried out on 148 inpatients at Camilo Cienfuegos Hospital, in Sancti Spíritus. The variable analyzed was C-reactive protein. The mean between groups: severe and non-severe, was compared using t Student test for independent samples with a significance level of 0.05. Predictive capacity of the biomarker by ROC curve analysis was determined. Diagnostic accuracy was evaluated.  Results:  The mean value of C-reactive protein in the severe an non severe groups was 106.73 (88.43-125.03) and 26.87 (23.51-30.23), respectively; with highly significant differences. The area under the ROC curve was 0.991(0.975-1.000). The highest sensitivity and the lowest rate of false positive to discriminate between both groups was found at 47.1 mg/L.  Conclusions: The severity predictive capacity of the test was excellent. The optimal cut-off point to define when a patient was likely to progress to severity was 47.1 mg/L. The quantification of this biochemical parameter could optimize diagnostic and therapeutic strategies.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[proteína C reactiva]]></kwd>
<kwd lng="es"><![CDATA[COVID-19]]></kwd>
<kwd lng="es"><![CDATA[biomarcadores]]></kwd>
<kwd lng="en"><![CDATA[C-reactive protein]]></kwd>
<kwd lng="en"><![CDATA[COVID-19]]></kwd>
<kwd lng="en"><![CDATA[biomarkers]]></kwd>
</kwd-group>
</article-meta>
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