Awareness of memory abilities in community-dwelling older adults with suspected dementia and mild cognitive impairment.
Awareness of memory abilities in community-dwelling older adults with suspected dementia and mild cognitive impairment.
复制标题
对疑似痴呆和轻度认知障碍的社区老年人的记忆能力的认识。
DOI：
10.1159/000318752
复制
发表时间：
2010
影响因子：
2.4
通讯作者：
Gleason,CareyE
中科院分区：
文献类型：
--
作者：
Lin,Feng;Wharton,Whitney;Dowling,NMaritza;Ries,MicheleL;Johnson,SterlingC;Carlsson,CynthiaM;Asthana,Sanjay;Gleason,CareyE
Aims：To examine awareness of memory abilities by groups（healthy control，suspected dementia/mild cognitive impairment，MCI，and diagnosed dementia/MCI），and to describe group differences in the relationship between awareness and cognitive performance in a community sampling.Methods：In a cross-sectional design，183 subjects were evaluated in a community setting and classified into 3 groups based on their cognitive performance and reported medical history.使用已发表的病感失认率（AR）将受试者的估计记忆能力与客观记忆能力进行比较，对记忆能力的意识进行量化。根据AR评分，每组进一步分为“高估者”、“准确估计者”和“低估者”。结果：疑似和诊断痴呆/轻度认知障碍组的AR评分显着高于对照组。可疑组的高估者比例（96.2%）也显著高于确诊组（73.3%）和对照组（26.1%）。在高估的怀疑和诊断组的意识受损与执行功能，语言或全球cognition.Conclusion赤字：记忆能力受损的意识普遍存在于社区居住的老年人怀疑和诊断痴呆症或MCI。那些疑似痴呆症或MCI的人比诊断出的人更容易高估自己的记忆能力，这表明对缺陷的有限认识可能会阻碍痴呆症诊断服务的利用。
Aims:To examine awareness of memory abilities by groups (healthy control, suspected dementia/mild cognitive impairment, MCI, and diagnosed dementia/MCI), and to describe group differences in the relationship between awareness and cognitive performance in a community sample.Methods:In a cross-sectional design, 183 subjects were evaluated in a community setting and categorized into 3 groups based on their cognitive performance and reported medical history. Awareness of memory abilities was quantified using a published anosognosia ratio (AR) comparing the estimated to the objective memory performance by subjects. Each group was further categorized into ‘overestimators’, ‘accurate estimators’, and ‘underestimators’ based on their AR scores.Results:The suspected and diagnosed dementia/MCI groups had significantly higher AR scores than the controls. The suspected group also had a significantly larger proportion (96.2%) of overestimators than the diagnosed (73.3%) and control groups (26.1%). Impaired awareness in overestimators of the suspected and diagnosed groups was correlated with deficits in executive function, language or global cognition.Conclusion:Impaired awareness of memory abilities was prevalent in community-dwelling older adults with suspected and diagnosed dementia or MCI. Those with suspected dementia or MCI were more likely to overestimate their memory abilities than their diagnosed counterparts, suggesting that limited awareness of deficits may hinder utilization of dementia diagnostic services.