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- W2986045707 abstract "Objective To determine optimal test cut-offs for diagnosis of dementia and MCI using the mini-Addenbrooke’s Cognitive Examination (MACE) and compare these with index study cut-offs (Dement Geriatr Cogn Disord 2015;39:1–11), and to calculate MACE predictive values across a range of disease prevalences. Results Of 755 patients (F:M = 352:403, 47% female; median age 60 years), 114 received criterion diagnosis of dementia and 222 MCI. For diagnosis of dementia, optimal MACE cut-off determined by maximal Youden index was ≤20/30 (sensitivity 0.91, specificity 0.71) and by maximal correct classification accuracy was ≤14/30 (sensitivity 0.59, specificity 0.92). For MCI diagnosis, optimal MACE cut-off determined by maximal Youden index was ≤24/30 (sensitivity 0.90, specificity 0.57) and ≤19/30 (sensitivity 0.47, specificity 0.88) by maximal correct classification accuracy. These MACE cut-offs differed from the index study (≤25/30 high sensitivity, ≤21/30 high specificity). NPV was high (≥0.9) at all prevalences of dementia and MCI examined (range 0.05–0.4) suggesting normal MACE score effectively rules out dementia and MCI. Conclusions In this large dataset, optimal MACE cut-offs for dementia and MCI differed from the index study reflecting the different casemix of the studies. Revision of MACE cut-offs in may be required in clinical practice to maximise test discriminative utility." @default.
- W2986045707 created "2019-11-22" @default.
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- W2986045707 date "2019-11-14" @default.
- W2986045707 modified "2023-09-24" @default.
- W2986045707 title "038 MACE: optimal cut-offs for dementia and MCI" @default.
- W2986045707 doi "https://doi.org/10.1136/jnnp-2019-abn-2.63" @default.
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