Napping characteristics and cognitive performance in older adults.
Napping characteristics and cognitive performance in older adults.
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DOI：
10.1002/gps.4991
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发表时间：
2019-01
影响因子：
4
通讯作者：
Spira AP
中科院分区：
文献类型：
--
作者：
Owusu JT;Wennberg AMV;Holingue CB;Tzuang M;Abeson KD;Spira AP
确定小睡意图，频率和持续时间与美国老年人全国代表性样本中认知的关联。我们对来自国家健康和老龄化趋势研究（N= 2，549）第3轮或第4轮（2013-2014）的年龄≥65岁的社区居住医疗保险受益人进行了横断面分析。参与者报告了过去一个月的午睡意图（有意/无意），午睡频率（很少/从不[非午睡者]，一些天[不频繁午睡者]，大多数天/每天[频繁午睡者]）和平均午睡时间（我们将其分类为≤30分钟[短]; 31-60分钟[中等];和>60分钟[长]）。认知结果是即时和延迟单词回忆测试（分别为IWR和DWR）、时钟绘制测试（CDT）和自评记忆（评分：1[优秀]-5[非常差]）的表现。在调整了潜在的混杂因素后，无意小睡者的即时单词回忆测试表现比不小睡者（B=-0.23，p<0.01）和有意小睡者（B=-0.26，p<0.01）差。在进一步调整白天嗜睡后，经常午睡的人比不午睡的人自我评定的记忆力差（B=0.14，p<0.05）。与午睡时间短的人相比，午睡时间长的人的IWR（B=-0.26，p<0.05）和CDT评分（B=-0.17，p<0.05）较差。除了午睡时间与IWR和CDT的关联外，这些关联在排除痴呆症参与者和/或代理受访者后仍然存在。在未被诊断为痴呆或代理的参与者中，中等时间的午睡与较短午睡更好的DWR相关（B=0.24，p<0.05）。无论是午睡的意向，也没有频率与CDT的性能。在老年人中，午睡的不同方面与认知表现有关。未来的研究，与客观的午睡措施，需要阐明午睡和认知轨迹之间的联系。
To determine the association of napping intention, frequency, and duration with cognition in a nationally-representative sample of U.S. older adults. We performed a cross-sectional analysis of community-dwelling Medicare beneficiaries aged ≥65 years from Rounds 3 or 4 (2013–2014) of the National Health and Aging Trends Study (N=2,549). Participants reported past-month napping intention (intentional/unintentional), napping frequency (rarely/never [non-nappers], some days [infrequent nappers], most days/every day [frequent nappers]), and average nap duration (we categorized as ≤30 minutes [short]; 31–60 minutes [moderate]; and >60 minutes [long]). Cognitive outcomes were performance on immediate and delayed word recall tests (IWR and DWR, respectively), the Clock Drawing Test (CDT), and self-rated memory (score: 1[excellent]-5[very poor]). After adjustment for potential confounders, unintentional nappers had poorer immediate word recall test performance than non-nappers (B=−0.23, p<0.01) and intentional nappers (B=−0.26, p<0.01). After further adjustment for daytime sleepiness, frequent nappers reported poorer self-rated memory than non-nappers (B=0.14, p<0.05). Compared to short nappers, long nappers had poorer IWR (B=−0.26, p<0.05) and CDT scores (B=−0.17, p<0.05). Except for the association of nap duration with IWR and CDT, these associations remained after excluding participants with dementia and/or proxy respondents. Among participants undiagnosed with dementia or proxies, moderate-duration naps were associated with better DWR than short naps (B=0.24, p<0.05). Neither napping intentionality nor frequency were associated with CDT performance. Among older adults, distinct aspects of napping are associated with cognitive performance. Prospective research, with objective measures of napping, is needed to elucidate the link between napping and cognitive trajectories.
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