title: [Prevalence of sarcopenia in geriatric outpatients and nursing homes. The ELLI study].
abstract: BACKGROUND
  There are few systematic studies on the prevalence of sarcopenia using the new diagnostic criteria in different geriatric care settings.
  
  
  OBJECTIVE
  To estimate the prevalence of sarcopenia, using the European Working Group on Sarcopenia in Older People (EWGSOP) criteria in older subjects living in nursing homes and in those who attend geriatric outpatient clinics.
  
  
  METHODS
  A single country multicentre study in two samples of older subjects: patients cared for in outpatient geriatric clinics, and individuals living in nursing homes. Data collected will include demographic variables, medical history, medication, geriatric syndromes, functional status (assessment of basic and instrumental activities of daily living), mobility, cognitive status, comorbidity, quality of life, nutritional status, and laboratory parameters. For the diagnosis of sarcopenia, 4m walking speed, handgrip strength, and body composition measured by bioelectrical impedance analysis will be assessed.
  
  
  RESULTS
  Using the EWGSOP algorithm, the prevalence of sarcopenia in an elderly Spanish population will be estimated. In addition, concordance and correlation between the three parameters included in the definition (muscle mass, muscle strength, and physical performance) will be analysed, using the different existing cut-off points, and examining the diagnostic accuracy of each. Finally, demographic, anthropometric and functional data that define subjects with sarcopenia will be investigated.
  
  
  CONCLUSIONS
  The ELLI study should improve knowledge on the prevalence and characteristics of sarcopenia in older people in our population.
authors.affiliation: Servicio de Geriatría, Hospital General Universitario Gregorio Marañón, Madrid, España. Electronic address: camiop@yahoo.es.
authors.forename: Carmen María
authors.initials: CM
authors.lastname: Osuna-Pozo
authors.affiliation: Servicio de Geriatría, Hospital General Universitario Gregorio Marañón, Madrid, España.
authors.forename: José Antonio
authors.initials: JA
authors.lastname: Serra-Rexach
authors.affiliation: Departamento de Fisiología, Universidad de Valencia, Fundación Investigación Hospital Clínico Universitario/INCLIVA, Valencia, España.
authors.forename: José
authors.initials: J
authors.lastname: Viña
authors.affiliation: Departamento de Fisiología, Universidad de Valencia, Fundación Investigación Hospital Clínico Universitario/INCLIVA, Valencia, España.
authors.forename: María del Carmen
authors.initials: Mdel C
authors.lastname: Gómez-Cabrera
authors.affiliation: Institut de l'Envelliment, Universitat Autònoma de Barcelona, Barcelona, España.
authors.forename: Antoni
authors.initials: A
authors.lastname: Salvá
authors.affiliation: Unidad de Geriatría, Hospital de Sant Pau, Universitat Autònoma de Barcelona, Barcelona, España.
authors.forename: Domingo
authors.initials: D
authors.lastname: Ruiz
authors.affiliation: Unidad de Geriatría, Servicio de Medicina Interna, Hospital Clínico de Barcelona, Universidad de Barcelona, Barcelona, España.
authors.forename: Ferrán
authors.initials: F
authors.lastname: Masanes
authors.affiliation: Unidad de Geriatría, Servicio de Medicina Interna, Hospital Clínico de Barcelona, Universidad de Barcelona, Barcelona, España.
authors.forename: Alfonso
authors.initials: A
authors.lastname: Lopez-Soto
authors.affiliation: Programa de Geriatría, Hospital Universitari de Bellvitge, IDIBELL, L'Hospitalet de Llobregat, Barcelona, España.
authors.forename: Francesc
authors.initials: F
authors.lastname: Formiga
authors.affiliation: Servicio de Geriatría, Hospital Clínico San Carlos, Universidad Complutense, Madrid, España.
authors.forename: Federico
authors.initials: F
authors.lastname: Cuesta
authors.affiliation: Servicio de Geriatría, Hospital Universitario Ramón y Cajal, Madrid, España.
authors.forename: Alfonso
authors.initials: A
authors.lastname: Cruz-Jentoft
mesh_terms: D000368:Aged; D000465:Algorithms; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D008297:Male; D009735:Nursing Homes; D010045:Outpatients; D015995:Prevalence; D055948:Sarcopenia / Q000175:diagnosis* / Q000453:epidemiology*
keywords: Fuerza muscular; Masa muscular; Muscle mass; Muscle strength; Older people; Personas mayores; Physical performance; Prevalence; Prevalencia; Rendimiento físico; Sarcopenia