title: Adapting and testing the oral impacts on daily performances among adults and elderly in Brazil.
abstract: OBJECTIVE
  To cross-culturally adapt and evaluate the psychometric properties of the oral impact on daily performance (OIDP) in Brazilians aged 50-74 years; to test the impact of oral health on 'work' and 'vigorous physical activity'.
  
  
  BACKGROUND
  Clinical oral health indicators do not assess the perceived impact of oral health on people's lives.
  
  
  METHODS
  The study was performed through small group interviews, pilot studies and a main study with 200 people aged 50 and over. Data were collected through interviews in health centres.
  
  
  RESULTS
  For content validity, 'eating' (1.00, p < 0.001) and 'speaking' (0.96, p < 0.001) obtained the highest level of agreement among experts. For criterion and construct validity, there was an inverse correlation between self-rated oral health, perceived oral treatment needs and satisfaction with oral health and OIDP score. Cronbach's alpha coefficient varied from 0.69 to 0.67 when 'work' and 'vigorous physical activities' were deleted. Test-retest reliability was 0.69 (ICC).
  
  
  CONCLUSIONS
  The validation process showed that the Brazilian OIDP has the necessary basic psychometric properties to be used in the 50-74 years age group in Brazil. 'Work' and 'vigorous physical activities' had low impact on oral health. The activity 'vigorous physical activities' was not maintained in the instrument because of its low impact, while 'work' was maintained due of the increase in the 50-59 years age group in the Brazilian population.
authors.affiliation: Programa de Pós-Graduação em Odontologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.
authors.forename: Claides
authors.initials: C
authors.lastname: Abegg
authors.forename: Victor Nascimento
authors.initials: VN
authors.lastname: Fontanive
authors.forename: George
authors.initials: G
authors.lastname: Tsakos
authors.forename: Rosane Silvia
authors.initials: RS
authors.lastname: Davoglio
authors.forename: Mônica Maria Celestina
authors.initials: MM
authors.lastname: de Oliveira
mesh_terms: D000368:Aged; D001938:Brazil; D003431:Cross-Cultural Comparison; D003753:Dental Health Surveys / Q000706:statistics & numerical data*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009909:Oral Health / Q000706:statistics & numerical data*; D010549:Personal Satisfaction; D010865:Pilot Projects; D011594:Psychometrics; D011788:Quality of Life; D015203:Reproducibility of Results
keywords: elderly; oral health; oral impacts on daily performance index; quality of life; validation studies