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Comparison of the diagnostic accuracy of the Cognitive Performance Scale (Minimum Data Set) and the Mini‐Mental State Exam for the detection of cognitive impairment in nursing home residents
Author(s) -
Paquay Louis,
Lepeleire Jan De,
Schoenmakers Birgitte,
Ylieff Michel,
Fontaine Ovide,
Buntinx Frank
Publication year - 2007
Publication title -
international journal of geriatric psychiatry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 129
eISSN - 1099-1166
pISSN - 0885-6230
DOI - 10.1002/gps.1671
Subject(s) - receiver operating characteristic , minimum data set , mini–mental state examination , cognitive impairment , medicine , area under the curve , odds ratio , confidence interval , cognition , effects of sleep deprivation on cognitive performance , positive predicative value , montreal cognitive assessment , diagnostic accuracy , nursing homes , psychiatry , predictive value , nursing
Objective To compare the diagnostic accuracy of an outcome measurement scale of the Minimum Data Set of the Resident Assessment Instrument for nursing homes (MDS/RAI‐NH), the Cognitive Performance Scale (CPS) and the Mini‐Mental State Exam (MMSE) for the detection of cognitive impairment. The Cambridge Examination for Mental Disorders of the Elderly – Revised (CAMDEX‐R) was used as the reference standard. Study design and setting This study was part of a larger prospective study (QUALIDEM) involving a diagnostic procedure and two‐year follow‐up on the quality of primary care for demented patients. CAMDEX‐R and MDS/RAI‐NH were administered to 198 residents, aged 65 or more, living in 42 low and high care institutions for aged people. Main outcome measures Indicators of diagnostic accuracy: sensitivity, specificity, predictive values, likelihood ratios, odds ratio and area under receiver operating characteristics curve (AUC). Results The CAMDEX‐based prevalence of cognitive impairment was 75%. The diagnostic values of a CPS score of two or more for the detection of cognitive impairment were: sensitivity = 0.81; specificity = 0.80; PPV = 0.92; NPV = 0.57. The diagnostic values of a MMSE score of less than or equal 23 were: sensitivity = 0.97; specificity = 0.59; PPV = 0.88; NPV = 0.85. For CPS, the area under the receiver operating characteristic (ROC) curve was 0.87 (95% CI, 0.81–0.91), and not significantly different ( p = 0.63) from the MMSE score, 0.88 (0.83–0.93). Conclusions CPS and MMSE demonstrated similar performance to detect cognitive impairment in nursing home residents. Copyright © 2006 John Wiley & Sons, Ltd.