Comparison of the Quick Mild Cognitive Impairment (Qmci) screen to the Montreal Cognitive Assessment (MoCA) in an Australian geriatrics clinic

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dc.check.date2017-07-18
dc.check.infoAccess to this article is restricted until 12 months after publication by request of the publisher.en
dc.contributor.authorClarnette, Roger
dc.contributor.authorO'Caoimh, Rónán
dc.contributor.authorAntony, Deanna N.
dc.contributor.authorSvendrovski, Anton
dc.contributor.authorMolloy, D. William
dc.date.accessioned2017-01-24T10:24:37Z
dc.date.available2017-01-24T10:24:37Z
dc.date.issued2016-07-18
dc.date.updated2017-01-24T10:08:44Z
dc.description.abstractIntroduction: The Montreal Cognitive Assessment (MoCA) accurately differentiates mild cognitive impairment (MCI) from mild dementia and normal controls (NC). While the MoCA is validated in multiple clinical settings, few studies compare it with similar tests also designed to detect MCI. We sought to investigate how the shorter Quick Mild Cognitive Impairment (Qmci) screen compares with the MoCA. Methods: Consecutive referrals presenting with cognitive complaints to a teaching hospital geriatric clinic (Fremantle, Western Australia) underwent a comprehensive assessment and were classified as MCI (n = 72) or dementia (n = 109). NC (n = 41) were a sample of convenience. The Qmci and MoCA were scored by trained geriatricians, in random order, blind to the diagnosis. Results: Median Qmci scores for NC, MCI and dementia were 69 (+/−19), 52.5 (+/−12) and 36 (+/−14), respectively, compared with 27 (+/−5), 22 (+/−4) and 15 (+/−7) for the MoCA. The Qmci more accurately identified cognitive impairment (MCI or dementia), area under the curve (AUC) 0.97, than the MoCA (AUC 0.92), p = 0.04. The Qmci was non-significantly more accurate in distinguishing MCI from controls (AUC 0.91 vs 0.84, respectively = 0.16). Both instruments had similar accuracy for differentiating MCI from dementia (AUC of 0.91 vs 0.88, p = 0.35). At the optimal cut-offs, calculated from receiver operating characteristic curves, the Qmci (≤57) had a sensitivity of 91% and specificity of 93% for cognitive impairment, compared with 87% sensitivity and 80% specificity for the MoCA (≤23). Conclusion: While both instruments are accurate in detecting MCI, the Qmci is shorter and arguably easier to complete, suggesting that it is a useful instrument in an Australian geriatric outpatient population.en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationClarnette, R., O'Caoimh, R., Antony, D. N., Svendrovski, A. and Molloy, D. W. (2016) 'Comparison of the Quick Mild Cognitive Impairment (Qmci) screen to the Montreal Cognitive Assessment (MoCA) in an Australian geriatrics clinic', International Journal of Geriatric Psychiatry, 32(6), pp. 643-649. doi:10.1002/gps.4505en
dc.identifier.doi10.1002/gps.4505
dc.identifier.endpage649
dc.identifier.issn1099-1166
dc.identifier.issued6
dc.identifier.journaltitleInternational Journal of Geriatric Psychiatryen
dc.identifier.startpage643
dc.identifier.urihttps://hdl.handle.net/10468/3506
dc.identifier.volume32
dc.language.isoenen
dc.publisherJohn Wiley & Sons, Ltd.en
dc.rights© 2016, John Wiley & Sons, Ltd. This is the peer reviewed version of the following article: Clarnette, R., O'Caoimh, R., Antony, D. N., Svendrovski, A. and Molloy, D. W. (2016) 'Comparison of the Quick Mild Cognitive Impairment (Qmci) screen to the Montreal Cognitive Assessment (MoCA) in an Australian geriatrics clinic', International Journal of Geriatric Psychiatry, 32(6), pp. 643-649, which has been published in final form at http://dx.doi.org/10.1002/gps.4505. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.en
dc.subjectCognitionen
dc.subjectMemoryen
dc.subjectDementiaen
dc.subjectScreeningen
dc.subjectAssessmenten
dc.titleComparison of the Quick Mild Cognitive Impairment (Qmci) screen to the Montreal Cognitive Assessment (MoCA) in an Australian geriatrics clinicen
dc.typeArticle (peer-reviewed)en
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