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DOI: 10.1055/s-2007-980062
Validierung eines kurzen Testverfahrens (3MS-R) für die Erkennung der Alzheimer-Demenz
Validation of a Short Test (3MS-R) for Detecting Alzheimer's DiseasePublication History
Publication Date:
03 July 2007 (online)

Zusammenfassung
Hintergrund: Der 3MS-R ist eine Version des Modifizierten Mini-Mental Status-Tests, der als ein kurzer Screeningtest zur Erkennung kognitiver Störungen entwickelt wurde und in den USA und in Kanada häufig verwendet wird. Ziele: Prüfung der Eignung des 3MS-R zur Unterscheidung zwischen kognitiv gesunden älteren Menschen und Patienten mit leicht- bis mittelgradiger Demenz bei Alzheimer-Krankheit (AK) in einer deutschsprachigen Population und Vergleich dieses Verfahrens mit dem herkömmlichen Mini-Mental Status-Test (MMST). Probanden: Die Studie bezieht sich auf 31 Patienten mit leicht- und 5 Patienten mit mittelgradiger Demenz bei AK sowie auf 46 kognitiv unauffällige gleichaltrige Probanden. Methode: Als Validierungsmaßstab diente die klinische Expertendiagnose auf der Grundlage einer ausführlichen diagnostischen Evaluation. Das 3MS-R Gesamtergebnis wurde entsprechend der Ausbildungsdauer des Patienten korrigiert. Die statistische Analyse der Ergebnisse wurde anhand einer Receiver-Operator-Characteristics-Analyse (ROC) durchgeführt. Ergebnisse: Die ROC-Kurven ergaben eine Überlegenheit des 3MS-R gegenüber dem MMST bei der Abgrenzung zwischen Patienten mit Demenz bei AK und kognitiv unauffälligen Probanden (Fläche unter der Kurve: 3MS-R vs. MMST: 0,995 vs. 0,953). Bei dem optimalen Grenzwert des 3MS-R für die Erkennung der Alzheimerdemenz, der 88 ist, erreichte der 3MS-R eine Sensitivität von 98 % und eine Spezifität von 94 %. Die deutsche Version des 3MS-R ist ein kurzes und praktisches, aber auch zuverlässiges Testverfahren zur Abgrenzung zwischen Patienten mit AK und kognitiv unauffälligen Probanden. Die Eignung der deutschen Fassung des Tests zur Erkennung Demenzen anderer Ätiologien und der leichten kognitiven Störung sollte in der Zukunft untersucht werden.
Abstract
Background: The Modified Mini-Mental State Examination-revised (3MS-R) is a brief cognitive test designed to detect cognitive impairment, which is often used in Canada and USA. Objective: To assess the accuracy of the 3MS-R in identifying Alzheimer’s disease (AD) in comparison with the conventional Mini-Mental State Examination (MMSE) in a German-speaking population. Subjects: The study refers to 31 patients with early AD and 5 patients with moderate dementia of AD etiology, as well as to 46 age-matched cognitively normal participants. Method: The 3MS-R and the MMSE were validated against an expert diagnosis based on a comprehensive diagnostic workup. The 3MS scores were adjusted for educational attainment. Statistical analysis was performed using the Receiver Operating Characteristics (ROC). Results: ROC curves demonstrated the superiority of the ACE over the MMSE in identifying AD (Area under the Curve: 3MS-R vs. MMSE: 0.995 vs.0.953). The optimal cut-off score for the 3MS for detecting AD was 88 and had a sensitivity of 98 % and a specificity of 94 %. The German version of the 3MS-R is a short and practical but accurate test battery for the identification of AD. The effectiveness of the German version of the test in detecting other forms of dementias or mild cognitive impairment could be a task for future studies.
Schlüsselwörter
Screeningverfahren - Alzheimer-Krankheit - Deutschsprachige Population - 3MS-R - MMST
Key words
screening - Alzheimer's disease - German-speaking population - 3MS-R - MMSE
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Dr. med. Panagiotis Alexopoulos
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Schwabachanlage 6
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Email: panagiotis.alexopoulos@uk-erlangen.de
