<?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>0034-7531</journal-id>
<journal-title><![CDATA[Revista Cubana de Pediatría]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Cubana Pediatr]]></abbrev-journal-title>
<issn>0034-7531</issn>
<publisher>
<publisher-name><![CDATA[Centro Nacional de Información de Ciencias MédicasEditorial Ciencias Médicas]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0034-75312022000100012</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Desempeño comparativo de la escala de Alvarado y la escala de apendicitis pediátrica en escolares y adolescentes]]></article-title>
<article-title xml:lang="en"><![CDATA[Comparative performance of Alvarado scale and the pediatric appendicitis scale in schoolchildren and adolescents]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ramírez Guirado]]></surname>
<given-names><![CDATA[Alejandro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Navarro Sombert]]></surname>
<given-names><![CDATA[Ana Barbarita]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Villamil Martínez]]></surname>
<given-names><![CDATA[Ramón]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital Pediátrico Docente Centro Habana  ]]></institution>
<addr-line><![CDATA[ La Habana]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Hospital Pediátrico Universitario William Soler  ]]></institution>
<addr-line><![CDATA[ La Habana]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2022</year>
</pub-date>
<volume>94</volume>
<numero>1</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S0034-75312022000100012&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S0034-75312022000100012&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S0034-75312022000100012&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción: La escala de Alvarado y la escala de apendicitis pediátrica se utilizan para la estratificación de pacientes pediátricos con sospecha de apendicitis.  Objetivo:  Comparar el desempeño diagnóstico de estas escalas en escolares y adolescentes, en general y según edad y sexo.  Métodos:  Estudio observacional prospectivo de 452 pacientes entre 5 y 18 años de edad, ingresados en el Hospital Pediátrico Docente Centro Habana, por dolor abdominal o apendicitis aguda, entre 2016 y 2017.  Resultados:  La escala de Alvarado tuvo a los &lt;4 puntos: sensibilidad 99,14 %, razón de verosimilitud negativa 0,02; a los &gt;7 puntos: especificidad 96,15 %, razón de verosimilitud positiva 10,3. La escala de apendicitis pediátrica presentó a los &lt;5 puntos: sensibilidad 96,55 %, razón de verosimilitud negativa 0,07; a los &gt;8 puntos: especificidad 96,15 %, razón de verosimilitud positiva 5,60. Las áreas bajo la curva fueron similares en general (0,851-0,858), siendo más altas y similares entre sí en escolares masculinos (0,918-0,923). En adolescentes femeninas, el área bajo la curva para la escala de apendicitis pediátrica (0,841) fue mayor que para la de Alvarado (0,802).  Conclusiones:  La escala de Alvarado resulta más específica, mientras que la escala de apendicitis pediátrica es más sensible. Se deben considerar diferentes puntos de corte para cada escala al estratificar según probable apendicitis. El desempeño discriminativo se comporta similar en general para ambas escalas, y muy bien en escolares masculinos. La mayor diferencia en desempeño ocurre en adolescentes femeninas, a favor de la escala de apendicitis pediátrica.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction:  Alvarado scale and the pediatric appendicitis scale are used for the stratification of pediatric patients with suspected appendicitis.  Objective:  Compare the diagnostic performance of these scales in schoolchildren and adolescents, in general and according to age and sex.  Methods:  Prospective observational study of 452 patients between 5 and 18 years of age, admitted to Centro Habana Pediatric Teaching Hospital due to abdominal pain or acute appendicitis in the period 2016-2017.  Results:  Alvarado scale had at &lt;4 points: sensitivity 99.14 %, negative likelihood ratio 0.02; at &gt;7 points: specificity 96.15 %, positive likelihood ratio 10.3. The paediatric appendicitis scale presented at &lt;5 points: sensitivity 96.55 %, negative likelihood ratio 0.07; at &gt;8 points: specificity 96.15 %, positive likelihood ratio 5.60. The areas under the curve had a similar overall (0.851 - 0.858), being higher and similar to each other in male schoolchildren (0.918 - 0.923). In female adolescents, the area under the curve for the pediatric appendicitis scale (0.841) was greater than for Alvarado's (0.802).  Conclusions:  Alvarado scale is more specific, while the pediatric appendicitis scale is more sensitive. Different cut-off points should be considered for each scale when stratifying according to probable appendicitis. Discriminative performance behaves similar in general for both scales, and very well in male schoolchildren. The biggest difference in performance occurs in female adolescents, in favor of the pediatric appendicitis scale.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[apendicitis]]></kwd>
<kwd lng="es"><![CDATA[niños]]></kwd>
<kwd lng="es"><![CDATA[escala de Alvarado]]></kwd>
<kwd lng="es"><![CDATA[escala de apendicitis pediátrica]]></kwd>
<kwd lng="en"><![CDATA[appendicitis]]></kwd>
<kwd lng="en"><![CDATA[children]]></kwd>
<kwd lng="en"><![CDATA[Alvarado scale]]></kwd>
<kwd lng="en"><![CDATA[pediatric appendicitis]]></kwd>
</kwd-group>
</article-meta>
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