Fritsch Thomas, McClendon McKee J, Wallendal Maggie S, Hyde Trevor F, Larsen Janet D
Parkinson Research Institute of the Wisconsin Parkinson Association, 945 North 12th Street, Suite 4602, Milwaukee, WI 53233, USA.
Neurological Outcomes Center, Neurological Institute, University Hospitals Case Medical Center, 11100 Euclid Avenue, Cleveland, OH 44106, USA.
J Neurodegener Dis. 2014;2014:176843. doi: 10.1155/2014/176843. Epub 2014 Apr 27.
Objectives. To estimate the prevalence of subjective memory complaints (SMCs) in a sample of community-dwelling, older adults and to examine cognitive bases of these complaints. Participants. 499 community-dwelling adults, 65 and older. Measurements. A telephone survey consisting of cognitive tests and clinical and sociodemographic variables. SMCs were based on subjects' evaluations and subjects' perceptions of others' evaluations. Analysis. Logistic regression was used to model the risk for SMCs as a function of the cognitive, clinical, and sociodemographic variables. We tested for interactions of the cognitive variables with age, education, and gender. Results. 27.1% reported memory complaints. Among the younger age, better objective memory performance predicted lower risk for SMCs, while among the older age, better memory had no effect on risk. Among the better-educated people, better global cognitive functioning predicted lower risk for SMCs, while among the less-educated people, better global cognitive functioning had no effect on SMC risk. When predicting others' perceptions, better objective memory was associated with lower risk for SMCs. Conclusion. Objective memory performance and global cognitive functioning are associated with lower risk for SMCs, but these relationships are the strongest for the younger age and those with more education, respectively. Age and education may affect the ability to accurately appraise cognitive functioning.
目的。估计社区居住的老年人样本中主观记忆抱怨（SMCs）的患病率，并研究这些抱怨的认知基础。参与者。499名65岁及以上的社区居住成年人。测量。一项电话调查，包括认知测试以及临床和社会人口统计学变量。主观记忆抱怨基于受试者的自我评价以及受试者对他人评价的认知。分析。使用逻辑回归将主观记忆抱怨的风险建模为认知、临床和社会人口统计学变量的函数。我们测试了认知变量与年龄、教育程度和性别的相互作用。结果。27.1%的人报告有记忆抱怨。在较年轻人群中，较好的客观记忆表现预示着主观记忆抱怨的风险较低，而在较年老人群中，较好的记忆对风险没有影响。在受教育程度较高的人群中，较好的整体认知功能预示着主观记忆抱怨的风险较低，而在受教育程度较低的人群中，较好的整体认知功能对主观记忆抱怨风险没有影响。在预测他人的认知时，较好的客观记忆与主观记忆抱怨的较低风险相关。结论。客观记忆表现和整体认知功能与主观记忆抱怨的较低风险相关，但这些关系分别在较年轻人群和受教育程度较高的人群中最为明显。年龄和教育程度可能会影响准确评估认知功能的能力。
