BACKGROUND Cutoff values of cognitive screen tests vary according to age and educational levels. OBJECTIVE The objective of this study was to compare the accuracy and determine cutoffs for 3 short cognitive screening instruments: the Mini-Mental State Examination, Montreal Cognitive Assessment (MoCA), and Quick Mild Cognitive Impairment Screen-Turkish version (Qmci-TR), in older adults with low literacy in Turkey. METHODS In all 321 patients, 133 with subjective cognitive complaints (SCC), 88 amnestic-type mild cognitive impairment (aMCI), and 100 with probable Alzheimer disease (AD) with a median of 5 years education were included. Education and age-specific cutoffs were determined. RESULTS For the overall population, the Qmci-TR was more accurate than the MoCA in distinguishing between aMCI and AD (area under the curve=0.83 vs. 0.76, P=0.004) and the Qmci-TR and Mini-Mental State Examination were superior to the MoCA in discriminating SCC from aMCI and AD. All instruments had similar accuracy among those with low literacy (primary school and lower educational level or illiterate). CONCLUSIONS To distinguish between SCC, aMCI, and AD in a sample of older Turkish adults, the Qmci-TR may be preferable. In very low literacy, the choice of the instrument appears less important.

中文翻译：

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土耳其有认知投诉的成年人短认知屏幕准确性的比较。

背景认知筛选测试的临界值根据年龄和教育水平而变化。目的 本研究的目的是比较 3 种短期认知筛查工具的准确性并确定临界值：简易精神状态检查、蒙特利尔认知评估 (MoCA) 和快速轻度认知障碍筛查土耳其版 (Qmci-TR)，在土耳其识字率低的老年人中。方法 在所有 321 名患者中，包括 133 名主观认知主诉 (SCC)、88 名遗忘型轻度认知障碍 (aMCI) 和 100 名可能患有阿尔茨海默病 (AD) 且中位受教育年限为 5 年的患者。确定了教育和特定年龄的临界值。结果 对于总体人群，Qmci-TR 在区分 aMCI 和 AD 方面比 MoCA 更准确（曲线下面积=0.83 vs. 0.76，P=0。004) 和 Qmci-TR 和简易精神状态检查在区分 SCC 与 aMCI 和 AD 方面优于 MoCA。所有工具在识字率低的人（小学和较低教育水平或文盲）中具有相似的准确性。结论 为了在土耳其老年人样本中区分 SCC、aMCI 和 AD，Qmci-TR 可能更可取。在识字率极低的情况下，工具的选择显得不那么重要。