Cross-national comparisons of the Cambridge Cognitive Examination-revised: the CAMCOG-R: results from the European Harmonization Project for Instruments in Dementia.

Background: Transnational and psychometrically appropriate versions of instruments used in the diagnosis of dementia are essential for comparing information between different countries. The Cambridge Examination for Mental Disorders of the Elderly incorporates a brief neuropsychological test battery, Cambridge Cognitive Examination (recently revised version), which provides objective data on performance across a number of cognitive domains.

Objective: To harmonise the Cambridge Cognitive Examination between seven European countries.

Behavioral problems in dementia: a factor analysis of the neuropsychiatric inventory.

The aim of this study was to detect behavioral subsyndromes of the 12-item Neuropsychiatric Inventory (NPI). Cross-sectional data of 199 patients with dementia living in the community were collected. Principal component analysis (with Varimax rotation) was used for factor analysis.