Cognitive performance as a predictor of functional decline among the non-disabled elderly dwelling in a Japanese community: A 4-year population-based prospective cohort study
Cognitive performance as a predictor of functional decline among the non-disabled elderly dwelling in a Japanese community: A 4-year population-based prospective cohort study
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DOI：
10.1016/j.archger.2007.07.008
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发表时间：
2008-07-01
影响因子：
4
通讯作者：
Suzuki, Takao
中科院分区：
文献类型：
--
作者：
Iwasa, Hajime;Gondo, Yasuyuki;Suzuki, Takao
本研究纵向考察了社区老年人认知能力的特定领域与功能衰退之间的关系。研究人群为119名男性和194名女性，基线时年龄在70-84岁之间，他们在基线和4年的随访调查中都接受了检查。Katz指数和东京都老年学研究所能力指数（TMIG-IC）分别用于测量基本日常生活活动（BADL）和高级能力的功能能力。为了分析的目的，在随访期间功能能力的每个子量表的下降被用作结果变量;和特定领域的认知表现，包括信息处理速度，执行功能，定向，和情节记忆在基线，被用作自变量。多元logistic回归分析，调整潜在的混杂因素，表明信息处理速度和方向与BADL下降独立和负相关，信息处理速度和执行功能独立和负相关的高层次的能力下降。这些结果表明，信息处理速度和定向是BADL下降的可靠预测因子，信息处理速度和执行功能也是社区老年人高级能力下降的可靠预测因子。(C)2007爱思唯尔爱尔兰有限公司保留所有权利。
This study longitudinally examined the relationships between the specific domains of cognitive performance and functional decline among the community elderly. The study population was 119 men and 194 women aged 70-84 at baseline, who were examined at both baseline and in a 4-year follow-up survey. Katz's Index and the Tokyo Metropolitan Institute of Gerontology Index of Competence (TMIG-IC) were used for measuring the functional capacities of basic activities of daily living (BADL) and higher-level competence, respectively. For the purpose of analyses, declines in each subscale of functional capacity during the follow-up period were used as outcome variables; and specific domains of cognitive performances, including information processing speed, executive function, orientation, and episodic memory at baseline, were used as independent variables. Multiple logistic regression analyses, adjusted for the potential confounders, showed that information processing speed and orientation were associated independently and inversely with BADL decline, and that information processing speed and executive function were related independently and inversely to higher-level competence decline. These results suggested that information processing speed and orientation are reliable predictors for decline in BADL, and information processing speed and executive function are also reliable predictors for decline in higher-level competence among the community elderly. (C) 2007 Elsevier Ireland Ltd. All rights reserved.