The measurement of everyday cognition: Development and validation of a short form of the Everyday Cognition scales

Alzheimer's & Dementia - Tập 7 Số 6 - Trang 593-601 - 2011
Sarah Tomaszewski Farias1, Dan Mungas1, Danielle Harvey2, Amanda Simmons1, Bruce Reed1,3, Charles DeCarli1
1Department of Neurology, University of California, Davis, Sacramento, CA, USA
2Division of Biostatistics, School of Medicine, Davis, CA, USA
3Veterans Affairs Northern California Health Care System, University of California, Davis, CA, USA

Tóm tắt

AbstractBackgroundThis study describes the development and validation of a shortened version of the Everyday Cognition (ECog) scales [Tomaszewski Farias et al. Neuropsychology 2008;22:531–44], an informant‐rated questionnaire designed to detect cognitive and functional decline.MethodsExternal, convergent, and divergent validities and internal consistency were examined. Data were derived from informant ratings of 907 participants who were either cognitively normal, had mild cognitive impairment (MCI), or had dementia.ResultsTwelve items were included in the shortened version (ECog‐12). The ECog‐12 strongly correlated with established functional measures and neuropsychological scores, only weakly with age and education, and demonstrated high internal consistency. The ECog‐12 showed excellent discrimination between the dementia and normal groups (area under the receiver operator characteristic curve = 0.95, CI = 0.94–0.97), and showed promise in discriminating normal older adults from those with any cognitive impairment (i.e., MCI or dementia). Discrimination between the MCI and normal groups was poor.ConclusionsThe ECog‐12 shows promise as a clinical tool for assisting clinicians in identifying individuals with dementia.

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Alzheimer's & Dementia

Tập 7 Số 6

593-601

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