title: [Adaptation and convergent validity of a telephone-based Mini-Mental State Examination].
abstract: OBJECTIVE
  To adapt to Spanish and to determine the convergent validity of a Telephone Mini-Mental State Examination (t-MMSE) in order to assess the cognitive functions in Alzheimer's disease (AD) patients.
  
  
  METHODS
  Prospective and observational study of a clinical sample consisting of patients with dementia from a memory clinic. Consecutive sampling of participants was used and convergent validity of the t-MMSE and MMSE scores was determined using several statistics measures. Patients were randomly assigned depending on the administration of the in-person/telephone test (MMSE and t-MMSE) or telephone/in-person (t-MMSE and MMSE) test within a 1- to 7-day interval. The effect of the confusion variables (age, gender, years of education, dementia severity, presence or absence of hearing impairment and administration order) on the concordance between the in-person and telephone MMSE versions was analysed.
  
  
  RESULTS
  After translating and retranslating the t-MMSE, of 141 participants, 77.47% subjects completed the protocol of the study. For the total score, the statistics for the convergent validity suggested a high consistency, independently of the order of test administration (intraclass correlation coefficient = 0.87, Spearman's rho = 0.77); for the all subscores, it suggested moderate and good correlations. The difference between subscores did not range more than 1 point in any case. Confusion variables did not affect the variability of the performance scores between t-MMSE and MMSE.
  
  
  CONCLUSIONS
  The t-MMSE can be used as a good tool to estimate the MMSE score of patients with dementia.
authors.affiliation: Unitat de Recerca, Institut d'Assistència Sanitària, Salt, Girona, España. recerca@ias.scs.es
authors.forename: Josep
authors.initials: J
authors.lastname: Garre-Olmo
authors.forename: Carme
authors.initials: C
authors.lastname: Lax-Pericall
authors.forename: Oriol
authors.initials: O
authors.lastname: Turro-Garriga
authors.forename: Olga
authors.initials: O
authors.lastname: Soler-Cors
authors.forename: Sílvia
authors.initials: S
authors.lastname: Monserrat-Vila
authors.forename: Joan
authors.initials: J
authors.lastname: Vilalta-Franch
authors.forename: Joy L
authors.initials: JL
authors.lastname: Taylor
authors.forename: Secundino
authors.initials: S
authors.lastname: López-Pousa
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D008297:Male; D008609:Mental Status Schedule; D008875:Middle Aged; D011446:Prospective Studies; D013689:Telephone