Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD.
Program on Aging, Yale School of Medicine, New Haven, CT.
J Gerontol A Biol Sci Med Sci. 2018 Mar 2;73(3):367-373. doi: 10.1093/gerona/glx166.
Napping is associated with both positive and negative health outcomes among older adults. However, the association between particular napping characteristics (eg, frequency, duration, and whether naps were intentional) and daytime function is unclear.
Participants were 2,739 community-dwelling Medicare beneficiaries aged ≥65 years from the nationally representative National Health and Aging Trends Study. Participants reported napping frequency, duration, and whether naps were intentional versus unintentional. Restricted participation in valued activities was measured by self-report.
After adjusting for potential confounders and nighttime sleep duration, those who took intentional and unintentional naps had a greater odds of any valued activity restriction (ie, ≥1 valued activity restriction), compared to those who rarely/never napped (unintentional odds ratio [OR] = 1.34, 95% confidence interval [CI] 1.01, 1.79, intentional OR = 1.49, 95% CI 1.09, 2.04). There was no difference between unintentional napping and intentional napping with respect to any valued activity restriction after adjustment for demographics. Compared to participants napping "some days," those napping most days/every day had a greater odds of any valued activity restriction (OR = 1.68, 95% CI 1.30, 2.16). Moreover, each 30-minute increase in average nap duration was associated with a 25% greater odds of any valued activity restriction (OR = 1.25, 95% CI 1.10, 1.43).
Older adults who took more frequent or longer naps were more likely to report activity restrictions, as were those who took intentional or unintentional naps. Additional longitudinal studies with objective measures of sleep are needed to further our understanding of associations between napping characteristics and daytime dysfunction.
老年人打盹与健康的好坏结果都有关联。然而，特定打盹特征（例如，频率、持续时间以及打盹是否是有意的）与日间功能之间的关联尚不清楚。
参与者为来自全国代表性的国家健康老龄化趋势研究的 2739 名 65 岁及以上的社区居住的医疗保险受益人。参与者报告了打盹的频率、持续时间以及打盹是否是有意的还是无意的。通过自我报告衡量受限参与有价值的活动的情况。
在调整了潜在混杂因素和夜间睡眠时间后，与很少/从不打盹的人相比，有意和无意打盹的人更有可能限制任何有价值的活动（即，≥1 项有价值的活动受限）（无意打盹的比值比 [OR] = 1.34，95%置信区间 [CI] 1.01，1.79，有意打盹的 OR = 1.49，95% CI 1.09，2.04）。在调整了人口统计学因素后，无意打盹和有意打盹在任何有价值的活动受限方面没有差异。与打盹“有些天”的参与者相比，每天或几乎每天打盹的参与者更有可能限制任何有价值的活动（OR = 1.68，95% CI 1.30，2.16）。此外，平均打盹持续时间每增加 30 分钟，限制任何有价值的活动的几率就会增加 25%（OR = 1.25，95% CI 1.10，1.43）。
更频繁或更长时间打盹的老年人更有可能报告活动受限，有意或无意打盹的老年人也是如此。需要进行更多的具有客观睡眠测量的纵向研究，以进一步了解打盹特征与日间功能障碍之间的关联。
