title: [Development and Validation of the National Functionality Table for Chronic Diseases].
abstract: BACKGROUND
  Systematic evaluation and registration of adults functionality with chronic diseases is relevant, because it allows: 'flattening' health, social and employment policies, according to the person's functionality with chronic diseases, providing health and social professionals with a data collection, which complements disease records, and finally, measuring functionality gains. The objective of the study was to develop a National Functionality Table for active age adults with chronic disease, according to the International Classification of Functioning, Disability and Health of the World Health Organization.
  
  
  METHODS
  Quantitative and qualitative methods were used; literature review (17 articles), focal group (nine experts), Delphi panel (16 experts) and exploratory study (309 persons with chronic diseases).
  
  
  RESULTS
  The literature review identified 67 limited activities in the study population, from which 40 activities were selected by the focal group and 38 activities were validated by the Delphi panel.
  
  
  CONCLUSIONS
  In order to test the psychometric properties we have compared the average value of all possible coefficients of internal consistency type (split-half). When analyzing the discrimination of functional levels in different samples, equality of variances was verified, using the Levene test as well as the 't' test. According to the observation and analysis of α Cronbach coefficient we have found that the National Functionality Table shows good reliability levels. From the main component analysis, five dimensions were identified.
  
  
  CONCLUSIONS
  the National Functionality Table has appropriate psychometric characteristics in respect to its consistency, reliability and internal validity.
authors.affiliation: Centro de Investigação em Saúde Pública. Escola Nacional de Saúde Pública. Universidade Nova de Lisboa. Lisboa.
authors.forename: Carla Sandra
authors.initials: CS
authors.lastname: Pereira
authors.affiliation: Centro de Estudo de Doença Crónica. NOVA Medical School. Universidade NOVA de Lisboa. Lisboa. Serviço de Reumatologia. Hospital Egas Moniz. Centro Hospitalar Lisboa Ocidental. Lisboa.
authors.forename: Jaime
authors.initials: J
authors.lastname: Banco
authors.affiliation: Escola Superior de Enfermagem S. João de Deus. Universidade de Ãvora. Ãvora.
authors.forename: Manuel
authors.initials: M
authors.lastname: Lopes
authors.affiliation: Centro de Investigação em Saúde Pública. Escola Nacional de Saúde Pública. Universidade Nova de Lisboa. Lisboa.
authors.forename: Ana
authors.initials: A
authors.lastname: Escoval
authors.affiliation: Instituto de Medicina Preventiva e Saúde Publica. Faculdade de Medicina. Universidade de Lisboa. Lisboa. Departamento da Qualidade na Saúde. Direção-Geral da Saúde. Lisboa.
authors.forename: Paulo
authors.initials: P
authors.lastname: Nogueira
authors.affiliation: Departamento da Qualidade na Saúde. Direção-Geral da Saúde. Lisboa.
authors.forename: José Alexandre
authors.initials: JA
authors.lastname: Diniz
authors.affiliation: Faculdade de Medicina. Universidade de Lisboa. Lisboa.
authors.forename: Fernando
authors.initials: F
authors.lastname: Guerra
authors.affiliation: Departamento da Qualidade na Saúde. Direção-Geral da Saúde. Lisboa.
authors.forename: Anabela
authors.initials: A
authors.lastname: Coelho
mesh_terms: D000203:Activities of Daily Living; D000328:Adult; D002908:Chronic Disease; D004185:Disability Evaluation; D006801:Humans; D011174:Portugal