Measuring sleep quality in older adults: a comparison using subjective and objective methods.
Measuring sleep quality in older adults: a comparison using subjective and objective methods.
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DOI：
10.3389/fnagi.2015.00166
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发表时间：
2015
影响因子：
4.8
通讯作者：
Liu-Ambrose T
中科院分区：
文献类型：
--
作者：
Landry GJ;Best JR;Liu-Ambrose T
睡眠质量随着年龄的增长而下降，因此睡眠投诉在老年人中很普遍，特别是那些患有认知障碍和痴呆症的人。对于老年人来说，新的证据表明睡眠质量差会增加患认知障碍和痴呆症的风险。考虑到人口老龄化以及痴呆症患者数量增加带来的经济负担，迫切需要改善老年人的睡眠质量。因此，研究工作越来越关注调查与年龄相关的睡眠变化和老年人认知能力下降之间的关系。睡眠质量是一个复杂的结构，以经验评估，但在研究中通常使用的睡眠质量指数（PSQI）作为他们的唯一衡量睡眠质量。此外，PSQI可能不是老年人的最佳睡眠质量指标，因为它依赖于认知能力来反映过去的一个月。需要进一步的研究来确定PSQI在老年人中的有效性。因此，目前的研究检查了78名社区居住的55岁以上成年人的睡眠质量，以确定PSQI对客观睡眠质量的预测有效性（通过体动计测量）。我们比较了两种睡眠质量的主观指标-PSQI和共识睡眠日记（CSD）-与体动记录仪（MotionWatch 8©; camntech）。我们的研究结果表明，感知的睡眠质量与客观现实有很大的不同，至少对于55岁以上的成年人来说是这样。重要的是，我们发现这种差异与年龄，性别，教育或认知状态无关（使用标准屏幕评估）。以前的研究表明，PSQI是评估主观睡眠质量的一个有价值的工具;然而，我们的研究结果表明，对于老年人，PSQI不应该被用作体动计的替代品，反之亦然。因此，我们得出结论，最佳实践是在检查老年人的睡眠质量时包括主观和客观指标（即，PSQI、CSD和体动记录）。
Sleep quality decreases with aging and thus sleep complaints are prevalent in older adults, particularly for those with cognitive impairment and dementia. For older adults, emerging evidence suggests poor sleep quality increases risk of developing cognitive impairment and dementia. Given the aging population—and the impending economic burden associated with increasing numbers of dementia patients—there is pressing need to improve sleep quality among older adults. As such, research efforts have increased focus on investigating the association between age-related sleep changes and cognitive decline in older adults. Sleep quality is a complex construct to evaluate empirically, and yet the Pittsburg Sleep Quality Index (PSQI) is commonly used in studies as their only measure of sleep quality. Furthermore, the PSQI may not be the best sleep quality measure for older adults, due to its reliance on the cognitive capacity to reflect on the past month. Further study is needed to determine the PSQI's validity among older adults. Thus, the current study examined sleep quality for 78 community dwelling adults 55+ to determine the PSQI's predictive validity for objective sleep quality (as measured by actigraphy). We compared two subjective measures of sleep quality—the PSQI and Consensus Sleep Diary (CSD)—with actigraphy (MotionWatch 8©; camntech). Our results suggest perceived sleep quality is quite different from objective reality, at least for adults 55+. Importantly, we show this difference is unrelated to age, gender, education, or cognitive status (assessed using standard screens). Previous studies have shown the PSQI to be a valuable tool for assessing subjective sleep quality; however, our findings indicate for older adults the PSQI should not be used as a substitute for actigraphy, or vice versa. Hence, we conclude best practice is to include both subjective and objective measures when examining sleep quality in older adults (i.e., the PSQI, CSD, and actigraphy).