[Screening of cognitive functions and the prediction of incident dementia by means of the SIDAM]

Psychiatr Prax. 2007 Apr;34(3):139-44. doi: 10.1055/s-2006-951973.
[Article in German]


Objective: The suitability of the SIDAM (Structured Interview for the Diagnosis of Dementia) for the detection of pre-clinical stages of dementia.

Methods: Prospective study of a sample of 794 non-demented elderly persons in the age bracket from 65 to 85 who were initially being treated in general hospitals. A cognitive screening with the SIDAM was performed during their stay in the hospital. After discharge the occurrence of dementia was determined in four follow-up studies at one-year intervals.

Results: During the follow-up, 100 newly developed cases of dementia were diagnosed. A lower performance in the SIDAM was associated with a significantly higher risk of the development of dementia. In comparison with the upper quartile in total SIDAM score the relative risk of a dementia amounted to 2.6 (1.0-6.8) for the second quartile, 4.5 (1.9-11.0) for the third quartile and 13.3 (5.7-31.1) for the fourth quartile. The highest predictive validity was found for memory performance, in particular for free delayed recall.

Conclusions: Risk groups for dementia can be identified by the use of a brief cognitive screening procedure.

Publication types

  • English Abstract

MeSH terms

  • Aged
  • Aged, 80 and over
  • Alzheimer Disease / diagnosis*
  • Alzheimer Disease / psychology
  • Cognition Disorders / diagnosis*
  • Cognition Disorders / psychology
  • Early Diagnosis
  • Female
  • Follow-Up Studies
  • Humans
  • Male
  • Mass Screening*
  • Mathematical Computing
  • Mental Status Schedule / statistics & numerical data
  • Neuropsychological Tests / statistics & numerical data*
  • Psychometrics / statistics & numerical data
  • Reproducibility of Results
  • Statistics as Topic