<?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>1665-1146</journal-id>
<journal-title><![CDATA[Boletín médico del Hospital Infantil de México]]></journal-title>
<abbrev-journal-title><![CDATA[Bol. Med. Hosp. Infant. Mex.]]></abbrev-journal-title>
<issn>1665-1146</issn>
<publisher>
<publisher-name><![CDATA[Instituto Nacional de Salud, Hospital Infantil de México Federico Gómez]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1665-11462024000600319</article-id>
<article-id pub-id-type="doi">10.24875/bmhim.24000060</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Types of statistical analysis in prognostic studies]]></article-title>
<article-title xml:lang="es"><![CDATA[Tipos de análisis estadísticos en los estudios de pronóstico]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rendón-Macías]]></surname>
<given-names><![CDATA[Mario E.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castillo-Ivón]]></surname>
<given-names><![CDATA[Ana S.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Orozco-Díaz]]></surname>
<given-names><![CDATA[Lorena]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Panamericana School of Medicine Faculty of Health Sciences]]></institution>
<addr-line><![CDATA[ Mexico City]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2024</year>
</pub-date>
<volume>81</volume>
<numero>6</numero>
<fpage>319</fpage>
<lpage>327</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1665-11462024000600319&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1665-11462024000600319&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1665-11462024000600319&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Prognostic studies may have a descriptive exploratory objective on an outcome or a comparative objective in the search for factors associated with it. A second objective is explanatory to determine the effect of a particular prognostic factor adjusted for its confounders, with or without the intention of establishing causality. The third objective is the construction of a predictive prognostic scale. For each of these objectives, there are recommended statistical methods for clarification and validity. In this article, the methods and application examples are presented. The proper selection of analytical methods allows for clear and valid communication of the results of a prognostic study.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Los estudios pronósticos pueden tener un objetivo exploratorio descriptivo sobre un desenlace o comparativo en la búsqueda de factores asociados al mismo. Un segundo objetivo es explicativo para determinar el impacto de un factor pronóstico en particular ajustado a sus confusores con o sin la intención de establecer rutas causales. El tercero es la construcción de una escala pronóstica predictiva. Para cada uno de estos objetivos existen métodos estadísticos recomendados para su clarificación y validez, los cuales fueron revisados en una publicación previa. En este artículo presentamos los métodos y ejemplos de aplicación. La adecuada selección de los métodos analíticos permite una comunicación clara y válida de los resultados de un estudio pronóstico.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Statistical analysis]]></kwd>
<kwd lng="en"><![CDATA[Prognosis]]></kwd>
<kwd lng="en"><![CDATA[Validity]]></kwd>
<kwd lng="es"><![CDATA[Análisis estadístico]]></kwd>
<kwd lng="es"><![CDATA[Pronóstico]]></kwd>
<kwd lng="es"><![CDATA[Validez]]></kwd>
</kwd-group>
</article-meta>
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