title: [Psychometric properties of the diabetes mellitus 2 treatment adherence scale version III (EATDM-III) adapted for Chilean patients].
abstract: BACKGROUND
  The Diabetes Mellitus 2 treatment adherence scale version III (EATDM-III) was devised in Costa Rica. Its seven factors are family support, community organization and support, physical exercise, medical control, hygiene and self-care and assessment of physical condition.
  
  
  OBJECTIVE
  To assess the psychometric properties of the scale in Chilean patients.
  
  
  METHODS
  The results of the EATDM-III scale, applied to 274 patients with Diabetes Mellitus 2 aged 59 ± 11 years (59% women), were analyzed. Reliability, item, exploratory and confirmatory factorial analyses were carried out both in the initial and the proposed model.
  
  
  RESULTS
  We propose a version of 30 items grouped in six dimensions, improving the fit indices obtained with the original scale. The review of item factor loadings shows that all are appropriate both in magnitude and statistical significance, with values between 0.46 and 0.93. Internal consistency measured by Cronbach's alpha, was 0.85 for the total scale.
  
  
  CONCLUSIONS
  The adapted EATDM-III scale is reliable and can be used to assess treatment adherence in Chilean patients.
authors.forename: Alfonso
authors.initials: A
authors.lastname: Urzúa
authors.forename: Carlos
authors.initials: C
authors.lastname: Cabrera
authors.forename: Christofer
authors.initials: C
authors.lastname: González
authors.forename: Pablo
authors.initials: P
authors.lastname: Arenas
authors.forename: Mónica
authors.initials: M
authors.lastname: Guzmán
authors.forename: Alejandra
authors.initials: A
authors.lastname: Caqueo-Urízar
authors.forename: Alfonso
authors.initials: A
authors.lastname: Villalobos
authors.forename: Matías
authors.initials: M
authors.lastname: Irarrázaval
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002677:Chile; D003431:Cross-Cultural Comparison; D003924:Diabetes Mellitus, Type 2 / Q000628:therapy*; D015444:Exercise; D005260:Female; D006801:Humans; D006920:Hygiene; D007802:Language; D008297:Male; D008875:Middle Aged; D010349:Patient Compliance; D011594:Psychometrics; D015203:Reproducibility of Results; D012648:Self Care; D012944:Social Support; D011795:Surveys and Questionnaires; D055815:Young Adult