<?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>0120-0534</journal-id>
<journal-title><![CDATA[Revista Latinoamericana de Psicología]]></journal-title>
<abbrev-journal-title><![CDATA[rev.latinoam.psicol.]]></abbrev-journal-title>
<issn>0120-0534</issn>
<publisher>
<publisher-name><![CDATA[Fundación Universitaria Konrad Lorenz]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-05342022000100086</article-id>
<article-id pub-id-type="doi">10.14349/rlp.2022.v54.10</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[El impacto de la soledad y la fragilidad en el bienestar de los mayores europeos]]></article-title>
<article-title xml:lang="en"><![CDATA[The impact of loneliness and frailty on the well-being of older Europeans]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sancho]]></surname>
<given-names><![CDATA[Patricia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sentandreu-Mañó]]></surname>
<given-names><![CDATA[Trinidad]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Fernández]]></surname>
<given-names><![CDATA[Irene]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Tomás]]></surname>
<given-names><![CDATA[José M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Valencia  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Spain</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Valencia  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Spain</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de Valencia  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Spain</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2022</year>
</pub-date>
<volume>54</volume>
<fpage>86</fpage>
<lpage>93</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-05342022000100086&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-05342022000100086&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-05342022000100086&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introducción: El bienestar es un constructo importante cuyos determinantes asociados deben ser identificados para comprender con mayor profundidad los procesos para envejecer de forma saludable. El estudio del impacto de la fragilidad en el bienestar de las personas mayores requiere incorporar los dominios físico, psicológico y social. Así, el adulto mayor frágil puede definirse a partir de la fragilidad física, junto con la soledad como fragilidad social. Este estudio propone un modelo para estudiar el impacto de la fragilidad física y la soledad sobre el bienestar de las personas mayores, diferenciando entre control, autonomía, placer y autorrealización.  Método: Se realizó un estudio de carácter transversal con una muestra de 13569 personas mayores provenientes de la encuesta SHARE, para estimar un modelo de ecuaciones estructurales en el que se contemplaban los efectos de la fragilidad y la soledad en el bienestar (cuestionario CASP), controlado por el género, la edad y la salud percibida.  Resultados: El modelo final contemplaba el efecto del género sobre el indicador de fuerza de prensión de fragilidad. Los resultados mostraron un ajuste adecuado del modelo a los datos y consiguieron explicar un 80.1% de la varianza de control, un 48.6% de la de autonomía, un 43.6% de la de placer y un 61.3% de la varianza de autorrealización.  Conclusiones: La soledad y la fragilidad presentaron efectos diferenciales en función del componente de bienestar. Se discuten las implicaciones de dichos efectos en el desarrollo de intervenciones.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Introduction: Well-being is an important construct whose associated determinants must be identified in order to further understand the processes for healthy aging. The study of the impact of frailty on older people&#8217;s wellbeing requires the incorporation of physical, psychological and social domains. Hence, frail older adults can be defined from physical frailty, together with loneliness as social frailty. This study proposes a model to study the impact of frailty and loneliness on well-being of older adults, differentiating among control, autonomy, pleasure and self-realization.  Method: A cross-sectional study was carried out with a sample of 13569 older adults from the SHARE project was employed in order to estimate a structural equation model in which frailty and loneliness affected well-being (CASP questionnaire), while controlling for gender, age and perceived health.  Results: The final model additionally contemplated the effect of gender on the grip strength frailty indicator. Results showed a good fit of the model to the data and could explain 80.1% of the variance of control, 48.6% of autonomy&#8217;s, 43.6% of pleasure&#8217;s and 61.3% of the variance of self-realization.  Conclusions: Loneliness and frailty showed differential effects on the different components of well-being. Implications of these effects on intervention development are discussed]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Bienestar]]></kwd>
<kwd lng="es"><![CDATA[envejecimiento exitoso]]></kwd>
<kwd lng="es"><![CDATA[factores físicos]]></kwd>
<kwd lng="es"><![CDATA[factores psicosociales]]></kwd>
<kwd lng="es"><![CDATA[personas mayores]]></kwd>
<kwd lng="en"><![CDATA[Well-being]]></kwd>
<kwd lng="en"><![CDATA[successful aging]]></kwd>
<kwd lng="en"><![CDATA[physical factors]]></kwd>
<kwd lng="en"><![CDATA[psychosocial factors]]></kwd>
<kwd lng="en"><![CDATA[older adults]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Alpert]]></surname>
<given-names><![CDATA[P. T.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Self-perception of social isolation and loneliness in older adults]]></article-title>
<source><![CDATA[Home Health Care Management &amp; Practice]]></source>
<year>2017</year>
<volume>29</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>249-52</page-range></nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Andrew]]></surname>
<given-names><![CDATA[M. K.]]></given-names>
</name>
<name>
<surname><![CDATA[Fisk]]></surname>
<given-names><![CDATA[J. D.]]></given-names>
</name>
<name>
<surname><![CDATA[Rockwood]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Psychological well-being in relation to frailty: A frailty identity crisis?]]></article-title>
<source><![CDATA[nternational Psychogeriatrics]]></source>
<year>2012</year>
<volume>24</volume>
<numero>08</numero>
<issue>08</issue>
<page-range>1347-53</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bao-lin]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Wei]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Jia-Qi]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Qing-gang]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Jian-feng]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Predicting factors associated with frailty in aged patients with bone-arthrosis pain in the clinic]]></article-title>
<source><![CDATA[Phys Sportsmed]]></source>
<year>2016</year>
<volume>44</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>391-6</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Barbosa]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Sandersb]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Kokanovi&#263;c]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[It&#8217;s the worst bloody feeling in the world: Experiences of loneliness and social isolation among older people living in care homes]]></article-title>
<source><![CDATA[Journal of Aging Studies]]></source>
<year>2019</year>
<volume>49</volume>
<page-range>74-84</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bergmann]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Scherpenzeel]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Börsch-Supan]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[SHARE Wave 7 Methodology: Panel Innovations and Life Histories]]></article-title>
<source><![CDATA[Munich Center for the Economics of Aging (MEA)]]></source>
<year>2019</year>
</nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bollen]]></surname>
<given-names><![CDATA[K. A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Structural Equation Modeling with latent variables]]></source>
<year>1989</year>
<publisher-name><![CDATA[John Wiley and Sons, Inc]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Börsch-Supan]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Survey of Health, Ageing and Retirement in Europe (SHARE) Wave 7. Release version: 7.1.1. SHARE-ERIC. Data set.]]></source>
<year>2020</year>
</nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cheung]]></surname>
<given-names><![CDATA[G. W.]]></given-names>
</name>
<name>
<surname><![CDATA[Rensvold]]></surname>
<given-names><![CDATA[R. B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Evaluating goodness-of-fit indexes for testing measurement invariance]]></article-title>
<source><![CDATA[Structural Equation Modeling]]></source>
<year>2002</year>
<volume>9</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>233-55</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Clegg]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Young]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Iliffe]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Olde Rikkert]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Rockwood]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Frailty in elderly people]]></article-title>
<source><![CDATA[Lancet]]></source>
<year>2013</year>
<volume>381</volume>
<numero>9868</numero>
<issue>9868</issue>
<page-range>752-62</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[De Jong Gierveld]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A review of loneliness: Concepts and definitions, determinants and consequences]]></article-title>
<source><![CDATA[Reviews in Clinical Gerontology]]></source>
<year>1998</year>
<volume>8</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>73-80</page-range></nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Dent]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Morley]]></surname>
<given-names><![CDATA[J. E.]]></given-names>
</name>
<name>
<surname><![CDATA[Cruz-Jentoft]]></surname>
<given-names><![CDATA[A. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Woodhouse]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Rodríguez-Mañas]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Fried]]></surname>
<given-names><![CDATA[L. P.]]></given-names>
</name>
<name>
<surname><![CDATA[Woo]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Aprahamian]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[Sanford]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Lundy]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Landi]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Beilby]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Martin]]></surname>
<given-names><![CDATA[F. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Bauer]]></surname>
<given-names><![CDATA[J. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Ferrucci]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Merchant]]></surname>
<given-names><![CDATA[R. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Dong]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Arai]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Hoogendijk]]></surname>
<given-names><![CDATA[E. O.]]></given-names>
</name>
<name>
<surname><![CDATA[&#8230; Vellas]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Physical Frailty: ICFSR International Clinical Practice Guidelines for Identification and Management]]></article-title>
<source><![CDATA[The Journal of Nutrition, Health &amp; Aging]]></source>
<year>2019</year>
<volume>23</volume>
<numero>9</numero>
<issue>9</issue>
<page-range>771-87</page-range></nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Dykstra]]></surname>
<given-names><![CDATA[P. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Van Tilburg]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[de Jong Gierveld]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Changes in older adults loneliness: Results from a seven-year longitudinal study]]></article-title>
<source><![CDATA[Research on Aging]]></source>
<year>2005</year>
<volume>27</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>725-47</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Freedman]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Nicolle]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Social isolation and loneliness: the new geriatric giants: Approach for primary care]]></article-title>
<source><![CDATA[Canadian Family Physician]]></source>
<year>2020</year>
<volume>66</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>176-82</page-range></nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Finney]]></surname>
<given-names><![CDATA[S. J.]]></given-names>
</name>
<name>
<surname><![CDATA[DiStefano]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<source><![CDATA[Non-normal and categorical data in structural equation modeling. En G. R. Hancock &amp; R. O. Mueller (Eds.), Structural equation modeling: A second course]]></source>
<year>2006</year>
<page-range>269-314</page-range><publisher-name><![CDATA[Information Age]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Fried]]></surname>
<given-names><![CDATA[L. P.]]></given-names>
</name>
<name>
<surname><![CDATA[Tangen]]></surname>
<given-names><![CDATA[C. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Walston]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Newman]]></surname>
<given-names><![CDATA[A. B.]]></given-names>
</name>
<name>
<surname><![CDATA[Hirsch]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Gottdiener]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Seeman]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Tracy]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Kop]]></surname>
<given-names><![CDATA[W. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Burke]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[McBurnie]]></surname>
<given-names><![CDATA[M. A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Frailty in older adults: evidence for a phenotype]]></article-title>
<source><![CDATA[Journal of Gerontology: Medical Sciences]]></source>
<year>2001</year>
<volume>56</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>146-56</page-range></nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gobbens]]></surname>
<given-names><![CDATA[R. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Luijkx]]></surname>
<given-names><![CDATA[K. G.]]></given-names>
</name>
<name>
<surname><![CDATA[Wijnen-Sponselee]]></surname>
<given-names><![CDATA[M. T.]]></given-names>
</name>
<name>
<surname><![CDATA[Schols]]></surname>
<given-names><![CDATA[J. M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[In search of an integral conceptual definition of frailty: Opinions of experts]]></article-title>
<source><![CDATA[Journal of the American Medical Directors Association]]></source>
<year>2010</year>
<volume>11</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>338-43</page-range></nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Griffin]]></surname>
<given-names><![CDATA[S. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Williams]]></surname>
<given-names><![CDATA[A. B.]]></given-names>
</name>
<name>
<surname><![CDATA[Mladen]]></surname>
<given-names><![CDATA[S. N.]]></given-names>
</name>
<name>
<surname><![CDATA[Perrin]]></surname>
<given-names><![CDATA[P. B.]]></given-names>
</name>
<name>
<surname><![CDATA[Dzierzewski]]></surname>
<given-names><![CDATA[J. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Rybarczyk]]></surname>
<given-names><![CDATA[B. D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Reciprocal effects between loneliness and sleep disturbance in older Americans]]></article-title>
<source><![CDATA[Journal of Aging and Health]]></source>
<year>2020</year>
<volume>32</volume>
<numero>9</numero>
<issue>9</issue>
<page-range>1156-64</page-range></nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gwozdz]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
<name>
<surname><![CDATA[Sousa-Poza]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Ageing, health and life satisfaction of the oldest old: An analysis for Germany]]></article-title>
<source><![CDATA[Social Indicators Research]]></source>
<year>2010</year>
<volume>97</volume>
<page-range>397-417</page-range></nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Han]]></surname>
<given-names><![CDATA[S. Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Ko]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A structural equation model of successful aging in Korean older women: using selection-optimization-compensation (SOC) strategies]]></article-title>
<source><![CDATA[Journal of Women and Aging]]></source>
<year>2021</year>
<volume>33</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>84-99</page-range></nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hawkley]]></surname>
<given-names><![CDATA[L. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Thisted]]></surname>
<given-names><![CDATA[R. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Cacioppo]]></surname>
<given-names><![CDATA[J. T.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Loneliness predicts reduced physical activity: Cross-sectional and longitudinal analyses]]></article-title>
<source><![CDATA[Health Psychology]]></source>
<year>2009</year>
<volume>28</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>354-63</page-range></nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hoogendijka]]></surname>
<given-names><![CDATA[E. O.]]></given-names>
</name>
<name>
<surname><![CDATA[Suanetc]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Dentd]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Deege]]></surname>
<given-names><![CDATA[D. J. H.]]></given-names>
</name>
<name>
<surname><![CDATA[Aartse]]></surname>
<given-names><![CDATA[M. J]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Adverse effects of frailty on social functioning in older adults: Results from the Longitudinal Aging Study Amsterdam]]></article-title>
<source><![CDATA[Maturitas]]></source>
<year>2016</year>
<volume>83</volume>
<page-range>45-50</page-range></nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hu]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Bentler]]></surname>
<given-names><![CDATA[P. M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Cut-off criteria for fit indexes in covariance structure analysis: Conventional criteria versus new alternatives]]></article-title>
<source><![CDATA[Structural Equation Modeling: A Multidisciplinary Journal]]></source>
<year>1999</year>
<volume>6</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>1-55</page-range></nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hubbard]]></surname>
<given-names><![CDATA[R. E.]]></given-names>
</name>
<name>
<surname><![CDATA[Andrew]]></surname>
<given-names><![CDATA[M. K.]]></given-names>
</name>
<name>
<surname><![CDATA[Fallah]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Rockwood]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Comparison of the prognostic importance of diagnosed diabetes, co-morbidity and frailty in older people]]></article-title>
<source><![CDATA[Diabetic Medicine]]></source>
<year>2010</year>
<volume>27</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>603-6</page-range></nlm-citation>
</ref>
<ref id="B24">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hughes]]></surname>
<given-names><![CDATA[M. E.]]></given-names>
</name>
<name>
<surname><![CDATA[Waite]]></surname>
<given-names><![CDATA[L. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Hawkley]]></surname>
<given-names><![CDATA[L. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Cacioppo]]></surname>
<given-names><![CDATA[J. T.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A short scale for measuring loneliness in large surveys results from two population-based studies]]></article-title>
<source><![CDATA[Research on Aging]]></source>
<year>2004</year>
<volume>26</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>655-72</page-range></nlm-citation>
</ref>
<ref id="B25">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hyde]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Wiggins]]></surname>
<given-names><![CDATA[R. D.]]></given-names>
</name>
<name>
<surname><![CDATA[Higgs]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Blane]]></surname>
<given-names><![CDATA[D. B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A measure of quality of life in early old age: The theory, development and properties of a needs satisfaction model (CASP-19)]]></article-title>
<source><![CDATA[Aging &amp; Mental Health]]></source>
<year>2003</year>
<volume>7</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>186-94</page-range></nlm-citation>
</ref>
<ref id="B26">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jakobsson]]></surname>
<given-names><![CDATA[U.]]></given-names>
</name>
<name>
<surname><![CDATA[Hallberg]]></surname>
<given-names><![CDATA[I. R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Loneliness, fear, and quality of life among elderly in Sweden: A gender perspective]]></article-title>
<source><![CDATA[Aging Clinical and Experimental Research]]></source>
<year>2013</year>
<volume>17</volume>
<page-range>494-501</page-range></nlm-citation>
</ref>
<ref id="B27">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jylha]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Old age and loneliness: Cross-sectional and longitudinal analyses in the Tampere longitudinal study on aging]]></article-title>
<source><![CDATA[Canadian Journal on Aging]]></source>
<year>2004</year>
<volume>23</volume>
<page-range>157-68</page-range></nlm-citation>
</ref>
<ref id="B28">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Maharani]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Pendleton]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Leroi]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Hearing Impairment, Loneliness, Social Isolation, and Cognitive Function: Longitudinal Analysis Using English Longitudinal Study on Ageing]]></article-title>
<source><![CDATA[American Journal of Geriatric Psychiatry]]></source>
<year>2019</year>
<volume>27</volume>
<numero>12</numero>
<issue>12</issue>
<page-range>1348-56</page-range></nlm-citation>
</ref>
<ref id="B29">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Morais]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Terassi]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Inouye]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Luchesi]]></surname>
<given-names><![CDATA[B. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Pavarini]]></surname>
<given-names><![CDATA[S. C. I.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Chronic pain in elderly caregivers at different levels of frailty]]></article-title>
<source><![CDATA[Revista Gaúcha de Enfermagem]]></source>
<year>2016</year>
<volume>37</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>1-7</page-range></nlm-citation>
</ref>
<ref id="B30">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mulasso]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Roppolo]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Giannotta]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Rabaglietti]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Associations of frailty and psychosocial factors with autonomy in daily activities: a cross-sectional study in Italian community-dwelling older adults]]></article-title>
<source><![CDATA[Clinical Interventions in Aging]]></source>
<year>2015</year>
<volume>11</volume>
<page-range>37-45</page-range></nlm-citation>
</ref>
<ref id="B31">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Muñoz]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Alix]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<source><![CDATA[Psicología del envejecimiento e intervención psicosocial. En J. Muñoz (Ed.), Psicología del envejecimiento]]></source>
<year>2002</year>
<page-range>19-28</page-range><publisher-name><![CDATA[Pirámide]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B32">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Muthén]]></surname>
<given-names><![CDATA[L. K.]]></given-names>
</name>
<name>
<surname><![CDATA[Muthén]]></surname>
<given-names><![CDATA[B. O.]]></given-names>
</name>
</person-group>
<source><![CDATA[Mplus User&#8217;s Guide]]></source>
<year>1998</year>
<edition>8</edition>
<publisher-name><![CDATA[Muthén &amp; Muthén]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B33">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nilsson]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[Bernspang]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Fisher]]></surname>
<given-names><![CDATA[A.G.]]></given-names>
</name>
<name>
<surname><![CDATA[Gustafson]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Löfgren]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Occupational Engagement and Life Satisfaction in the Oldest-Old: The Umeå 85+ Study]]></article-title>
<source><![CDATA[OTJR: Occupation, Participation and Health]]></source>
<year>2007</year>
<volume>27</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>131-9</page-range></nlm-citation>
</ref>
<ref id="B34">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Oksuzyan]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Singh]]></surname>
<given-names><![CDATA[P. K.]]></given-names>
</name>
<name>
<surname><![CDATA[Christensen]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Jasilionis]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A cross-national study of the gender gap in health among older adults in India and China: Similarities and disparities]]></article-title>
<source><![CDATA[Gerontologist]]></source>
<year>2018</year>
<volume>58</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>1156-65</page-range></nlm-citation>
</ref>
<ref id="B35">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Oude Voshaar]]></surname>
<given-names><![CDATA[R. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Dimitriadis]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[vandenBrink]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Aprahamian]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[Borges]]></surname>
<given-names><![CDATA[M. K.]]></given-names>
</name>
<name>
<surname><![CDATA[Marijnissen]]></surname>
<given-names><![CDATA[R. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Hoogendijk]]></surname>
<given-names><![CDATA[E. O.]]></given-names>
</name>
<name>
<surname><![CDATA[Rhebergen]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Jeuring]]></surname>
<given-names><![CDATA[H. W.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A 6-year prospective clinical cohort study on the bidirectional association between frailty and depressive disorder]]></article-title>
<source><![CDATA[International Journal of Geriatric Psychiatry]]></source>
<year>2021</year>
<volume>36</volume>
<numero>11</numero>
<issue>11</issue>
<page-range>1699-707</page-range></nlm-citation>
</ref>
<ref id="B36">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[O&#382;i&#263;]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Vasiljev]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
<name>
<surname><![CDATA[Ivkovi&#263;]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
<name>
<surname><![CDATA[Bilajac]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Rukavina]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Interventions aimed at loneliness and fall prevention reduce frailty in elderly urban population]]></article-title>
<source><![CDATA[Medicine]]></source>
<year>2020</year>
<volume>99</volume>
<numero>8</numero>
<issue>8</issue>
<page-range>1-8</page-range></nlm-citation>
</ref>
<ref id="B37">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Palomo-Vélez]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[García]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Araúna]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Muñoz-Mendoza]]></surname>
<given-names><![CDATA[C. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Fuentes]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Palomo]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effects of frailty status on happiness and life satisfaction: The mediating role of self-perceived health]]></article-title>
<source><![CDATA[Revista Latinoamericana de Psicología]]></source>
<year>2020</year>
<volume>52</volume>
<page-range>95-103</page-range></nlm-citation>
</ref>
<ref id="B38">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Penninx]]></surname>
<given-names><![CDATA[B. W. J. H.]]></given-names>
</name>
<name>
<surname><![CDATA[Van Tilburg]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Kriegsman]]></surname>
<given-names><![CDATA[D. M. W.]]></given-names>
</name>
<name>
<surname><![CDATA[Deeg]]></surname>
<given-names><![CDATA[D. J. H.]]></given-names>
</name>
<name>
<surname><![CDATA[Boeke]]></surname>
<given-names><![CDATA[A. J. P.]]></given-names>
</name>
<name>
<surname><![CDATA[Van Eijk]]></surname>
<given-names><![CDATA[J. T. M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effects of social support and personal coping resources on mortality in older age: the longitudinal aging study Amsterdam]]></article-title>
<source><![CDATA[American Journal of Epidemiology]]></source>
<year>1997</year>
<volume>146</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>510-9</page-range></nlm-citation>
</ref>
<ref id="B39">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pethtel]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
<name>
<surname><![CDATA[Chen]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Cross-cultural aging in cognitive and affective components of subjective well-being]]></article-title>
<source><![CDATA[Psychology and Aging]]></source>
<year>2010</year>
<volume>25</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>725-9</page-range></nlm-citation>
</ref>
<ref id="B40">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pinquart]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Sörensen]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<source><![CDATA[Risk factors for loneliness in adulthood and old age. A meta-analysis. En S. Shohov (Ed.), Advances in psychology research]]></source>
<year>2003</year>
<page-range>111-43</page-range><publisher-name><![CDATA[Nova Science]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B41">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pitkala]]></surname>
<given-names><![CDATA[K. H.]]></given-names>
</name>
<name>
<surname><![CDATA[Routasalo]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Kautiainen]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Tilvis]]></surname>
<given-names><![CDATA[R. S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effects of psychosocial group rehabilitation on health, use of health care services, and mortality of older persons suffering from loneliness: a randomized, controlled trial]]></article-title>
<source><![CDATA[Journal of Gerontology: Medical Science]]></source>
<year>2009</year>
<volume>64A</volume>
<numero>7</numero>
<issue>7</issue>
<page-range>792-800</page-range></nlm-citation>
</ref>
<ref id="B42">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Russel]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Peplau]]></surname>
<given-names><![CDATA[L. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Cutrona]]></surname>
<given-names><![CDATA[C. E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The revised UCLA Loneliness Scale: concurrent and discriminant validity evidence]]></article-title>
<source><![CDATA[Journal of Personality and Social Psychology]]></source>
<year>1980</year>
<volume>39</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>472-80</page-range></nlm-citation>
</ref>
<ref id="B43">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Santos-Eggimann]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Cuenoud]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Spagnoli]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Junod]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Prevalence of Frailty in Middle-Aged and Older Community-Dwelling Europeans Living in 10 Countries]]></article-title>
<source><![CDATA[The Journals of Gerontology Series A: Biological Sciences and Medical Sciences]]></source>
<year>2009</year>
<volume>64A</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>675-81</page-range></nlm-citation>
</ref>
<ref id="B44">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sentandreu-Mañó]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Badenes-Ribera]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Fernández]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[Oliver]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Burks]]></surname>
<given-names><![CDATA[D. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Tomás]]></surname>
<given-names><![CDATA[J. M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Frailty in the old age as a direct marker of quality of life and health: Gender differences.]]></article-title>
<source><![CDATA[Social Indicators Research]]></source>
<year>2022</year>
<volume>160</volume>
<page-range>429-43</page-range></nlm-citation>
</ref>
<ref id="B45">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Smith]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[White]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Stubbs]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Hu]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Veronese]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Vancampfort]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Hamer]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Gardner]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Yang]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Depressive symptoms, handgrip strength, and weight status in US older adults]]></article-title>
<source><![CDATA[Journal of Affective Disorders]]></source>
<year>2018</year>
<volume>238</volume>
<page-range>305-10</page-range></nlm-citation>
</ref>
<ref id="B46">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Steverink]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Lindenberg]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Which social needs are important for subjective well-being? What happens to them with aging?]]></article-title>
<source><![CDATA[Psychology and Aging]]></source>
<year>2006</year>
<volume>21</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>281-90</page-range></nlm-citation>
</ref>
<ref id="B47">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Studenski]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Hayes]]></surname>
<given-names><![CDATA[R. P.]]></given-names>
</name>
<name>
<surname><![CDATA[Leibowitz]]></surname>
<given-names><![CDATA[R. Q.]]></given-names>
</name>
<name>
<surname><![CDATA[Bode]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Lavery]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Walston]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Duncan]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Perera]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Clinical global impression of change in physical frailty: Development of a measure based on clinical judgment]]></article-title>
<source><![CDATA[Journal of the American Geriatrics Society]]></source>
<year>2004</year>
<volume>52</volume>
<numero>9</numero>
<issue>9</issue>
<page-range>1560-6</page-range></nlm-citation>
</ref>
<ref id="B48">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Tilvis]]></surname>
<given-names><![CDATA[R. S.]]></given-names>
</name>
<name>
<surname><![CDATA[Laitala]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
<name>
<surname><![CDATA[Routasalo]]></surname>
<given-names><![CDATA[P. E.]]></given-names>
</name>
<name>
<surname><![CDATA[Pitkälä]]></surname>
<given-names><![CDATA[K. H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Suffering from loneliness indicates significant mortality risk of older people]]></article-title>
<source><![CDATA[Journal of Aging Research]]></source>
<year>2011</year>
<volume>2011</volume>
<page-range>1-5</page-range></nlm-citation>
</ref>
<ref id="B49">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Tomás]]></surname>
<given-names><![CDATA[J. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Oliver]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Navarro]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Meléndez]]></surname>
<given-names><![CDATA[J. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Molina]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Comparación del bienestar psicológico de personas mayores dominicanas y españolas]]></article-title>
<source><![CDATA[Revista Española de Geriatría y Gerontología]]></source>
<year>2009</year>
<volume>44</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>180-5</page-range></nlm-citation>
</ref>
<ref id="B50">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Urtamo]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Jyväkorpi]]></surname>
<given-names><![CDATA[S. K.]]></given-names>
</name>
<name>
<surname><![CDATA[Strandberg]]></surname>
<given-names><![CDATA[T. E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Definitions of successful ageing: a brief review of a multidimensional concept]]></article-title>
<source><![CDATA[Acta bio-medica: Atenei Parmensis]]></source>
<year>2019</year>
<volume>90</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>359-63</page-range></nlm-citation>
</ref>
<ref id="B51">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Van de Schoot]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Lugtig]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Hox]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A checklist for testing measurement invariance]]></article-title>
<source><![CDATA[European Journal of Developmental Psychology]]></source>
<year>2012</year>
<volume>9</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>486-92</page-range></nlm-citation>
</ref>
<ref id="B52">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Van Oostrom]]></surname>
<given-names><![CDATA[S. H.]]></given-names>
</name>
<name>
<surname><![CDATA[Van der]]></surname>
<given-names><![CDATA[D. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Rietman]]></surname>
<given-names><![CDATA[M L.]]></given-names>
</name>
<name>
<surname><![CDATA[Picavet]]></surname>
<given-names><![CDATA[H. S. J]]></given-names>
</name>
<name>
<surname><![CDATA[Lette.]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Verschuren]]></surname>
<given-names><![CDATA[W. M. M]]></given-names>
</name>
<name>
<surname><![CDATA[de Bruin]]></surname>
<given-names><![CDATA[S. R.]]></given-names>
</name>
<name>
<surname><![CDATA[Spijkerman]]></surname>
<given-names><![CDATA[A. M. W]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A four-domain approach of frailty explored in the Doetinchem Cohort Study]]></article-title>
<source><![CDATA[BMC Geriatrics]]></source>
<year>2017</year>
<volume>17</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>196-207</page-range></nlm-citation>
</ref>
<ref id="B53">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Vestjens]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Cramm]]></surname>
<given-names><![CDATA[J. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Nieboer]]></surname>
<given-names><![CDATA[A. P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[An evaluation of an integrated primary care approach to improve well-being among frail community-dwelling older people]]></article-title>
<source><![CDATA[International Journal of Integrated Care]]></source>
<year>2016</year>
<volume>16</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>1-8</page-range></nlm-citation>
</ref>
<ref id="B54">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Vestjens]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Cramm]]></surname>
<given-names><![CDATA[J. N.]]></given-names>
</name>
<name>
<surname><![CDATA[Birnie]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Nieboer]]></surname>
<given-names><![CDATA[A. P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Evaluating an integrated primary care approach to improve well-being among frail community-living older people: A theory-guided study protocol]]></article-title>
<source><![CDATA[Geriatrics]]></source>
<year>2018</year>
<volume>18</volume>
<page-range>173-90</page-range></nlm-citation>
</ref>
<ref id="B55">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ware]]></surname>
<given-names><![CDATA[J. E.]]></given-names>
</name>
<name>
<surname><![CDATA[Gandek]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Overview of the SF-36 health survey and the international quality of life assessment (IQOLA) project]]></article-title>
<source><![CDATA[Journal of Clinical Epidemiology]]></source>
<year>1998</year>
<volume>51</volume>
<numero>11</numero>
<issue>11</issue>
<page-range>903-12</page-range></nlm-citation>
</ref>
<ref id="B56">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Wyshak]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Health ratings in relation to illnesses, physical functioning, general mental health and well-being: self-reports of college alumnae, ages &lt;40-80 and older]]></article-title>
<source><![CDATA[Quality of Life Research]]></source>
<year>2003</year>
<volume>12</volume>
<page-range>667-74</page-range></nlm-citation>
</ref>
<ref id="B57">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Xue]]></surname>
<given-names><![CDATA[Q. L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The frailty syndrome: Definition and natural history]]></article-title>
<source><![CDATA[Clinics in Geriatric Medicine: Home Page]]></source>
<year>2010</year>
<volume>27</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>1-15</page-range></nlm-citation>
</ref>
<ref id="B58">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Zebhauser]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Hofmann-Xu]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Baumert]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Häfner]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Lacruz]]></surname>
<given-names><![CDATA[M. E.]]></given-names>
</name>
<name>
<surname><![CDATA[Emeny]]></surname>
<given-names><![CDATA[R. T.]]></given-names>
</name>
<name>
<surname><![CDATA[Döring]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Grill]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Huber]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Peters]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Ladwig]]></surname>
<given-names><![CDATA[K. H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[How much does it hurt to be lonely? Mental and physical differences between older men and women in the KORA-Age Study]]></article-title>
<source><![CDATA[International Journal of Geriatric Psychiatry]]></source>
<year>2014</year>
<volume>29</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>245-52</page-range></nlm-citation>
</ref>
<ref id="B59">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Zhou]]></surname>
<given-names><![CDATA[Z.]]></given-names>
</name>
<name>
<surname><![CDATA[Wang]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Fang]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Loneliness and the risk of dementia among older Chinese adults: Gender differences]]></article-title>
<source><![CDATA[Aging and Mental Health]]></source>
<year>2018</year>
<volume>22</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>519-25</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
