<?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>0120-4157</journal-id>
<journal-title><![CDATA[Biomédica]]></journal-title>
<abbrev-journal-title><![CDATA[Biomédica]]></abbrev-journal-title>
<issn>0120-4157</issn>
<publisher>
<publisher-name><![CDATA[Instituto Nacional de Salud]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-41572008000400008</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Confiabilidad y reproducibilidad de la escala de fototipos de Fitzpatrick antes y después de un ejercicio de estandarización clínica]]></article-title>
<article-title xml:lang="en"><![CDATA[Reliability and reproducibility of the Fitzpatrick phototype scale for skin sensitivity to ultraviolet light]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez]]></surname>
<given-names><![CDATA[Guillermo]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Nova]]></surname>
<given-names><![CDATA[John]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Centro Dermatológico Federico Lleras Acosta Oficina de Docencia e Investigación ]]></institution>
<addr-line><![CDATA[Bogotá D.C]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2008</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2008</year>
</pub-date>
<volume>28</volume>
<numero>4</numero>
<fpage>544</fpage>
<lpage>550</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-41572008000400008&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-41572008000400008&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-41572008000400008&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Introducción. La escala de fototipos de Fitzpatrick permite conocer la sensibilidad de la piel frente a la luz ultravioleta; una estimación confiable del fototipo permite establecer el verdadero riesgo de cáncer de piel de acuerdo con esta característica. Objetivo. Establecer si existen diferencias en la concordancia intraobservador e interobservador de dos dermatólogos que evalúan el fototipo utilizando la escala de Fitzpatrick, antes y después de un proceso de estandarización clínica. Materiales y métodos. Se realizó un estudioanalítico de concordancia intraobservador e interobservador. La escala de fototipos de Fitzpatrick se estandarizó mediante la metodología de grupos focales. Para conocer el acuerdo intra e interobservador se utilizó el estadístico kappa ponderado. El efecto de la estandarización se midió mediante un contraste de hipótesis de igualdad de coeficientes kappa utilizando el estadístico de Wald, a través de la metodología de mínimos cuadrados ponderados. Resultados. Se incluyeron 155 pacientes mayores de 15 años evaluados en cuatro oportunidades, por dos observadores independientes. En la fase de pre-estandarización, el kappa ponderado interobservador basal fue de 0,31 y de 0,40 a las seis semanas. El kappa intraobservador A fue de 0,47 y el intraobservador B fue de 0,51. Después del proceso de estandarización, se obtuvo un kappa ponderado interobservador basal de 0,77, y de 0,82 a las seis semanas. Los coeficientes kappa intraobservador A y B fueron 0,78 y 0,82, respectivamente. Se establecieron diferencias estadísticamente significativas entre los coeficientes antes y después de la estandarización (p=0,000 en todas las comparaciones). Conclusiones. La escala de fototipos de Fitzpatrick posterior a un ejercicio de estandarización arroja resultados confiables, reproducibles y estables en el tiempo.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Introduction. The Fitzpatrick phototype scale has been used to determine skin sensitivity to ultraviolet light. The reliability of this scale in estimating sensitivity permits risk evaluation of skin cancer based on phototype. Objective. Reliability and changes in intra and inter-observer concordance was determined for the Fitzpatrick phototype scale after the assessment methods for establishing the phototype were standardized. Materials and methods.An analytical study of intra and inter-observer concordance was performed. The Fitzpatrick phototype scale was standardized using focus group methodology. To determine intra and inter-observer agreement, the weighted kappa statistical method was applied. The standardization effect was measured using the equal kappa contrast hypothesis and Wald test for dependent measurements. The phototype scale was applied to 155 patients over 15 years of age who were assessed four times by two independent observers. The sample was drawn from patients of the Centro Dermatológico Federico Lleras Acosta. Results. During the pre-standardization phase, the baseline and six-week inter-observer weighted kappa were 0.31 and 0.40, respectively. The intra-observer kappa values for observers A and B were 0.47 and 0.51, respectively. After the standardization process, the baseline and six-week inter-observer weighted kappa values were 0.77, and 0.82, respectively. Intra-observer kappa coefficients for observers A and B were 0.78 and 0.82. Statistically significant differences were found between coefficients before and after standardization (p<0.001) in all comparisons. Conclusion. Following a standardization exercise, the Fitzpatrick phototype scale yielded reliable, reproducible and consistent results.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[reproducibilidad de resultados]]></kwd>
<kwd lng="es"><![CDATA[dermatología]]></kwd>
<kwd lng="es"><![CDATA[piel]]></kwd>
<kwd lng="es"><![CDATA[pigmentación de la piel]]></kwd>
<kwd lng="es"><![CDATA[neoplasias cutáneas]]></kwd>
<kwd lng="es"><![CDATA[radiación solar]]></kwd>
<kwd lng="en"><![CDATA[reproducibility of results]]></kwd>
<kwd lng="en"><![CDATA[dermatology]]></kwd>
<kwd lng="en"><![CDATA[skin]]></kwd>
<kwd lng="en"><![CDATA[skin pigmentation]]></kwd>
<kwd lng="en"><![CDATA[skin neoplasm]]></kwd>
<kwd lng="en"><![CDATA[solar radiation]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[  ]]></body><back>
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