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.


METHODS
40 patients with probable or possible Alzheimer's disease of each of the seven countries were administered the Cambridge Cognitive Examination. The Nurse Observation Scale for Geriatrics was used to assess concordance between cognitive and behavioural measures.


RESULTS
Only small differences between the various Cambridge Cognitive Examination versions were found, and patterns of correlation between Cambridge Cognitive Examination and the Nurse Observation Scale for Geriatrics were consistent.


CONCLUSIONS
These findings indicate that the harmonisation of the Cambridge Cognitive Examination was successful.
Verhey
Frans R J
FR
Institute Brain and Behaviour, University Hospital of Maastricht, The Netherlands. f.verhey@np.unimaas.nl
Huppert
Felicia A
FA
Korten
Edith C C M
EC
Houx
Peter
P
de Vugt
Marjolein
M
van Lang
Natasja
N
DeDeyn
Peter P
PP
Saerens
Jos
J
Neri
Mirco
M
de Vreese
Luc
L
Peña-Casanova
Jordi
J
Böhm
Peter
P
Stoppe
Gabriela
G
Fleischmann
Ulrich
U
Wallin
Anders
A
Hellström
Per
P
Middelkoop
Huub
H
Bollen
Ward
W
Klinkenberg
Edwin L
EL
Derix
Mayke M A
MM
Jolles
Jellemer
J
D000368:Aged; D000544:Alzheimer Disease / Q000175:diagnosis*; D003071:Cognition; D003072:Cognition Disorders / Q000175:diagnosis*; D003704:Dementia / Q000175:diagnosis; D005060:Europe; D005260:Female; D006801:Humans; D007391:International Cooperation; D008297:Male; D009483:Neuropsychological Tests; D012044:Regression Analysis; D015203:Reproducibility of Results