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BAC 40 battery: a tool of cognitive evaluation for the diagnosis of Alzheimer’s disease at the specialist office


Guard, O.


Revue Neurologique, Volume: 166, No.: 6-7, Pages.: 615-620

Year of Publication



BAC 40 is a “composite” battery of psychometric tests useful for the diagnosis of Alzheimer’s dementia. It was elaborated using the modified Mini-Mental Status (MMS). The advantage is to establish a diagnosis in less than 20 minutes, exploring all the sectors of cognitive life. This tool was validated in a control population of 103 aged normal subjects and in 97 patients living at home or in institution and attending a neurology outpatient clinic for a memory complain. The scores obtained with “BAC 40” and the “ADAS-COG SCALE” were compared in all patients. The statistical analysis demonstrated a good correlation between the two scales, with a Spearman coefficient of -0.72 for the controls, and -0.90 for the patients. Cutoff values were determined below which a pathologic dementia process can be highly suspected. Score variations according to different parameters, and particularly in function of age, are given.;

Bibtex Citation

@article{Guard_2010, doi = {10.1016/j.neurol.2010.01.001}, url = {}, year = 2010, month = {jun}, publisher = {Elsevier {BV}}, volume = {166}, number = {6-7}, pages = {615--620}, author = {O. Guard}, title = {La batterie {BAC}~40~: un outil d'{'{e}}valuation cognitive pour le diagnostic de la maladie d'Alzheimer au cabinet du sp{'{e}}cialiste}, journal = {Revue Neurologique} }


aged, aged, 80 and over, alzheimer disease, diagnosis, humans, middle aged, neurology, neuropsychological tests, office visits, psychology, psychometrics

Countries of Study


Types of Dementia

Alzheimer’s Disease

Type of Interventions

Diagnostic Target Identification

Diagnostic Targets

Cognition testing (inc. task driven tests such as clock drawing)