title: [Harmonisation of databases for the study of frailty in older people: INTAFRADE study].
abstract: OBJECTIVE
  The main objective of the present work is to evaluate the feasibility of harmonising the available information from different independent databases, in order to build an integrated database to study frailty.
  
  
  METHODS
  This work is based on the European project, Integral Approach to the Transition between Frailty and Dependence on older adults: Patterns of occurrence, identification tools and model of care (INTAFRADE), developed by 4 groups, 3 in Spain and one in France. Each partner provided their databases related to the study of frailty. As a previous step to the creation of an integrated database the characteristics and variables included in each study were mapped, specifying whether their harmonisation was possible or not.
  
  
  RESULTS
  A total of 30 different variables that corresponded to 8 dimensions were identified: Sociodemographic and social characteristics, health status, lifestyle habits, anthropometric measures, other physical measurements, use of health services, and adverse health results. Of them all, 28 (93%) variables were harmonisable, although only 20% were present in all databases, with 47% in 3 of them. In relation to the frailty instruments, all of them were lacking at least 50% of the items. The harmonisation process will allow us to jointly analyse information available on 2,361 people.
  
  
  CONCLUSIONS
  The European INTAFRADE study will allow a deeper understanding of the frailty process in older people by harmonising information from heterogeneous databases.
authors.affiliation: Red de Investigación en Servicios Sanitarios en Enfermedades Crónicas (REDISSEC), España; Unidad de Investigación AP-OSIS Gipuzkoa, Osakidetza, San Sebastián, España; Instituto de Investigación Sanitaria Biodonostia, San Sebastián, España. Electronic address: monica.machonsobrado@osakidetza.eus.
authors.forename: Mónica
authors.initials: M
authors.lastname: Machón
authors.affiliation: Instituto de Investigación Sanitaria Biodonostia, San Sebastián, España.
authors.forename: Nerea
authors.initials: N
authors.lastname: Egüés
authors.affiliation: Red de Investigación en Servicios Sanitarios en Enfermedades Crónicas (REDISSEC), España; Servicio de Geriatría, Complejo Hospitalario de Navarra, Pamplona, España.
authors.forename: Nicolás
authors.initials: N
authors.lastname: Martínez
authors.affiliation: Gérontopôle, Centre Hospitalier Universitaire de Toulouse, INSERM UMR1027, Université de Toulouse III Paul Sabatier, Toulouse, Francia.
authors.forename: Gabor
authors.initials: G
authors.lastname: Abellán van Kan
authors.affiliation: Red de Investigación en Servicios Sanitarios en Enfermedades Crónicas (REDISSEC), España; Grupo EpiChron de Investigación en Enfermedades Crónicas, Instituto Aragón de Ciencias de la Salud (IACS), IIS Aragón, Hospital Universitario Miguel Servet, Zaragoza, España.
authors.forename: Amaia
authors.initials: A
authors.lastname: Calderón-Larrañaga
authors.affiliation: Centro de Salud de San Juan, Dirección de Atención Primaria, Servicio Navarro de Salud, Pamplona, España.
authors.forename: Pablo
authors.initials: P
authors.lastname: Aldaz
authors.affiliation: Red de Investigación en Servicios Sanitarios en Enfermedades Crónicas (REDISSEC), España; Grupo EpiChron de Investigación en Enfermedades Crónicas, Instituto Aragón de Ciencias de la Salud (IACS), IIS Aragón, Hospital Universitario Miguel Servet, Zaragoza, España.
authors.forename: Beatriz
authors.initials: B
authors.lastname: Poblador-Plou
authors.affiliation: Red de Investigación en Servicios Sanitarios en Enfermedades Crónicas (REDISSEC), España; Unidad de Investigación AP-OSIS Gipuzkoa, Osakidetza, San Sebastián, España; Instituto de Investigación Sanitaria Biodonostia, San Sebastián, España.
authors.forename: Kalliopi
authors.initials: K
authors.lastname: Vrotsou
authors.affiliation: Grupo EpiChron de Investigación en Enfermedades Crónicas, Instituto Aragón de Ciencias de la Salud (IACS), IIS Aragón, Hospital Universitario Miguel Servet, Zaragoza, España; Unidad de Valoración Socio-Sanitaria, Hospital Universitario Miguel Servet, Zaragoza, España.
authors.forename: Mercedes
authors.initials: M
authors.lastname: Clerencia-Sierra
authors.affiliation: Red de Investigación en Servicios Sanitarios en Enfermedades Crónicas (REDISSEC), España; Grupo EpiChron de Investigación en Enfermedades Crónicas, Instituto Aragón de Ciencias de la Salud (IACS), IIS Aragón, Hospital Universitario Miguel Servet, Zaragoza, España.
authors.forename: Alexandra
authors.initials: A
authors.lastname: Prados-Torres
authors.affiliation: Red de Investigación en Servicios Sanitarios en Enfermedades Crónicas (REDISSEC), España; Unidad de Investigación AP-OSIS Gipuzkoa, Osakidetza, San Sebastián, España; Instituto de Investigación Sanitaria Biodonostia, San Sebastián, España.
authors.forename: Itziar
authors.initials: I
authors.lastname: Vergara
mesh_terms: D000203:Activities of Daily Living; D000368:Aged; D016208:Databases, Factual; D016330:Frail Elderly; D015577:Geriatric Assessment; D006304:Health Status; D006801:Humans; D013030:Spain
keywords: Armonización; Fragilidad; Frailty; Harmonisation; Mapeo; Mapping; Older people; Personas mayores