title: [Estimation of the prevalence of cognitive impairment according to the test used].
abstract: OBJECTIVE
  The aim of the study was to compare the findings of Folstein's Mini Mental Test (MMT), Lobo's Cognitive Mini Exam (CME) and the Isaacs Set test, in their detection of cognitive deficit in over-64 year olds; and to analyse the factors associated with variability in the scores obtained with these tests.
  
  
  METHODS
  An observational crossover study.
  
  
  METHODS
  An urban Primary Care center.
  
  
  METHODS
  Among the total of 1096 patients aged over 64 registered on 5 lists and with medical records, a random sample of 329 was chosen.
  
  
  METHODS
  The MMT, CME and Set test were administered to each patient in the same interview. Information on associated morbidity and social and demographic variables was gathered.
  
  
  RESULTS
  211 women (64%) and 118 men (36%) completed the tests. Women were older (73.0 +/- 6 against 71.2 +/- 6; p = 0.02) and had had less schooling (3.2 +/- 3.6 years against 4.2 +/- 3.7; p = 0.019). A higher percentage of women were illiterate (47.1% against 24.3%; p = 0.008). The MMT showed CD at 60.8%, the CME at 28% and the Set test at 11.3%.
  
  
  CONCLUSIONS
  Estimated prevalence of CD varies depending on the test used. Variability in the MMT and CME is basically due to years of schooling, whereas in the Set test it is because of age.
authors.affiliation: ABS La Mina, Sant Adrià del Besòs (Barcelona).
authors.forename: M J
authors.initials: MJ
authors.lastname: González Moneo
authors.forename: R
authors.initials: R
authors.lastname: Escrivà Ferrairó
authors.forename: E
authors.initials: E
authors.lastname: Vinyoles Bargalló
authors.forename: C
authors.initials: C
authors.lastname: Espel Masferrer
authors.forename: J
authors.initials: J
authors.lastname: Davins Miralles
authors.forename: M
authors.initials: M
authors.lastname: Borrell Muñoz
mesh_terms: D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D003072:Cognition Disorders / Q000175:diagnosis* / Q000453:epidemiology; D018592:Cross-Over Studies; D004493:Education; D005260:Female; D015577:Geriatric Assessment; D006801:Humans; D007361:Intelligence Tests; D008297:Male; D015995:Prevalence; D011569:Psychiatric Status Rating Scales; D012737:Sex Factors