识别轻度认知障碍和痴呆症老年人多变量认知变化的快速参考标准:一项 ADNI 研究。

IF 2.6 4区 心理学 Q2 CLINICAL NEUROLOGY
Jeremy G Grant, Amanda M Wisinger, Hilary F Abel, Jennifer M Hunter, Glenn E Smith
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引用次数: 0

摘要

目的为老年人进行的七项神经心理测量中出现统计学上罕见变化的频率建立快速参考标准:方法:从阿尔茨海默病神经影像学研究计划(Alzheimer's Disease Neuroimaging Initiative)中获得了 935 名老年人在两年内接受检查的数据。样本中包括 401 名认知正常的老年人,他们的分数被用来确定七种认知测量指标变化分数的自然分布,并设定与第 5 百分位数相对应的变化分数阈值。对认知正常组、381 名轻度认知障碍(MCI)患者和 153 名痴呆患者中超过这些阈值的测试分数进行了统计。回归分析检验了变化分数的数量是否能预测人口统计学协变量之外的诊断组别成员:认知正常的参与者中只有 4.2% 的人获得了两次或两次以上低于变化分值第 5 百分位数的变化分值,相比之下,稳定的 MCI 参与者中有 10.6% 的人获得了两次或两次以上低于变化分值第 5 百分位数的变化分值,而转化为痴呆症的参与者中有 38.6% 的人获得了两次或两次以上低于变化分值第 5 百分位数的变化分值。在对年龄、性别、种族/民族和病前估计值进行调整后,变化分数低于第5百分位数的次数可显著预测诊断组的成员:结论:在七项测试中,老年人有两项或两项以上的变化分数低于第 5 百分位数阈值的情况并不常见。较高的变化次数可以识别出那些出现非典型认知衰退的人。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Quick-reference criteria for identifying multivariate cognitive change in older adults with mild cognitive impairment and dementia: An ADNI study.

Objective: To establish quick-reference criteria regarding the frequency of statistically rare changes in seven neuropsychological measures administered to older adults.

Method: Data from 935 older adults examined over a two-year interval were obtained from the Alzheimer's Disease Neuroimaging Initiative. The sample included 401 cognitively normal older adults whose scores were used to determine the natural distribution of change scores for seven cognitive measures and to set change score thresholds corresponding to the 5th percentile. The number of test scores that exceeded these thresholds were counted for the cognitively normal group, as well as 381 individuals with mild cognitive impairment (MCI) and 153 individuals with dementia. Regression analyses examined whether the number of change scores predicted diagnostic group membership beyond demographic covariates.

Results: Only 4.2% of cognitively normal participants obtained two or more change scores that fell below the 5th percentile of change scores, compared to 10.6% of the stable MCI participants and 38.6% of those who converted to dementia. After adjusting for age, gender, race/ethnicity, and premorbid estimates, the number of change scores below the 5th percentile significantly predicted diagnostic group membership.

Conclusions: It was uncommon for older adults to have two or more change scores fall below the 5th percentile thresholds in a seven-test battery. Higher change counts may identify those showing atypical cognitive decline.

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来源期刊
CiteScore
5.40
自引率
3.80%
发文量
185
审稿时长
4-8 weeks
期刊介绍: The Journal of the International Neuropsychological Society is the official journal of the International Neuropsychological Society, an organization of over 4,500 international members from a variety of disciplines. The Journal of the International Neuropsychological Society welcomes original, creative, high quality research papers covering all areas of neuropsychology. The focus of articles may be primarily experimental, applied, or clinical. Contributions will broadly reflect the interest of all areas of neuropsychology, including but not limited to: development of cognitive processes, brain-behavior relationships, adult and pediatric neuropsychology, neurobehavioral syndromes (such as aphasia or apraxia), and the interfaces of neuropsychology with related areas such as behavioral neurology, neuropsychiatry, genetics, and cognitive neuroscience. Papers that utilize behavioral, neuroimaging, and electrophysiological measures are appropriate. To assure maximum flexibility and to promote diverse mechanisms of scholarly communication, the following formats are available in addition to a Regular Research Article: Brief Communication is a shorter research article; Rapid Communication is intended for "fast breaking" new work that does not yet justify a full length article and is placed on a fast review track; Case Report is a theoretically important and unique case study; Critical Review and Short Review are thoughtful considerations of topics of importance to neuropsychology and include meta-analyses; Dialogue provides a forum for publishing two distinct positions on controversial issues in a point-counterpoint format; Special Issue and Special Section consist of several articles linked thematically; Letter to the Editor responds to recent articles published in the Journal of the International Neuropsychological Society; and Book Review, which is considered but is no longer solicited.
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