<?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>0213-9111</journal-id>
<journal-title><![CDATA[Gaceta Sanitaria]]></journal-title>
<abbrev-journal-title><![CDATA[Gac Sanit]]></abbrev-journal-title>
<issn>0213-9111</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Española de Salud Pública y Administración Sanitaria (SESPAS)]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0213-91112019000600511</article-id>
<article-id pub-id-type="doi">10.1016/j.gaceta.2018.07.011</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Comparación de métodos de escalamiento de actividades de la vida diaria en personas mayores]]></article-title>
<article-title xml:lang="en"><![CDATA[Comparison of scaling methods for activities of daily living in older people]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ayala]]></surname>
<given-names><![CDATA[Alba]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pujol]]></surname>
<given-names><![CDATA[Rogelio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Forjaz]]></surname>
<given-names><![CDATA[Maria João]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Abellán]]></surname>
<given-names><![CDATA[Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Consejo Superior de Investigaciones Científicas Centro de Ciencias Humanas y Sociales Instituto de Economía, Geografía y Demografía]]></institution>
<addr-line><![CDATA[Madrid ]]></addr-line>
<country>España</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Red de Investigación en Servicios de Salud en Enfermedades Crónicas (REDISSEC)  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>España</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Instituto Nacional de Estadística  ]]></institution>
<addr-line><![CDATA[Madrid ]]></addr-line>
<country>España</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Instituto de Salud Carlos III Escuela Nacional de Sanidad Departamento de Epidemiología y Bioestadística]]></institution>
<addr-line><![CDATA[Madrid ]]></addr-line>
<country>Spain</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2019</year>
</pub-date>
<volume>33</volume>
<numero>6</numero>
<fpage>511</fpage>
<lpage>516</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_arttext&amp;pid=S0213-91112019000600511&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_abstract&amp;pid=S0213-91112019000600511&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_pdf&amp;pid=S0213-91112019000600511&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Objetivo Comparar las propiedades psicométricas de escalas de medición de las actividades de la vida diaria según distintos métodos y comprobar si los más complejos tienen más capacidad discriminatoria.  Método Muestra de personas mayores de laEncuesta sobre discapacidad, autonomía personal y situaciones de dependencia. Se utilizaron 14 ítems que medían actividades de la vida diaria. Cinco métodos de escalamiento: Suma y Rasch (los dos con ítems en forma dicotómica o politómica) y Guttman (forma dicotómica). Se evaluaron su capacidad discriminatoria (precisión relativa [PR]) y el área bajo la curva (AUC).  Resultados Todos los métodos mostraron altas correlaciones de Pearson entre ellos (0,765-0,993). Tenían similar poder discriminatorio al comparar categorías extremas de individuos no limitados respecto a gravemente limitados (PR: 0,93-1,00). El procedimiento Suma politómico mostró la mayor AUC (0,934; intervalo de confianza del 95% [IC95%]: 0,928-0,939) y el Guttman la menor (0,853; IC95%: 0,845-0,861).  Conclusiones Se observa una mayor fiabilidad en ítems politómicos que dicotómicos. Los métodos sencillos (Suma) y los complejos (Rasch) son opciones igualmente válidas. El método Guttman presentó peor capacidad discriminatoria.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Objective To compare the psychometric properties of scales top measure activities of daily living, constructed with different scaling methods, and to check whether the most complex scales have higher discriminatory capacity.  Method Sample of elderly people from theSpanish Survey on Disability, Personal Autonomy and Dependency We used 14 items that measured activities of daily living. Five scaling methods were applied: Sum and Rasch (both for dichotomous and polytomous items) and Guttman (dichotomous). We evaluated the discriminatory capacity (relative precision [RP]) and area under the curve (AUC).  Results All methods showed high Pearson correlations among them (0.765-0.993). They had similar discriminatory power when comparing extreme categories of individuals with no disability with severely limited (RP: 0.93-1.00). The polytomous Sum procedure showed the highest AUC (0.934; 95% confidence interval [95%CI]: 0.928-0.939) and Guttman the lowest (0.853; 95%CI: 0.845-0.861).  Conclusions Polytomous items have greater reliability than the dichotomous ones. Simplest methods (Sum) and most complex (Rasch) are equally valid. Guttman method presented worse discriminatory capacity.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Actividades de la vida diaria]]></kwd>
<kwd lng="es"><![CDATA[Guttman]]></kwd>
<kwd lng="es"><![CDATA[Rasch]]></kwd>
<kwd lng="es"><![CDATA[Métodos de escalamiento]]></kwd>
<kwd lng="es"><![CDATA[Población mayor]]></kwd>
<kwd lng="en"><![CDATA[Activities of daily living]]></kwd>
<kwd lng="en"><![CDATA[Guttman]]></kwd>
<kwd lng="en"><![CDATA[Rasch]]></kwd>
<kwd lng="en"><![CDATA[Scaling methods]]></kwd>
<kwd lng="en"><![CDATA[Older people]]></kwd>
</kwd-group>
</article-meta>
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