Department of Neurology, Seoul National University Hospital, Seoul, Republic of Korea.
Department of Neurology, Kangnam Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Republic of Korea.
Sleep Med. 2023 Mar;103:24-28. doi: 10.1016/j.sleep.2023.01.025. Epub 2023 Jan 30.
An accurate assessment of sleep duration is important in that it can be one of the indicators of a country's overall health and well-being. The global trend in sleep duration is controversial according to study types. We investigated trends in sleep duration in South Korea with a time diary method.
Data from the Korean Time Use Survey (KTUS) in 2004, 2009, 2014, and 2019, were analyzed. The KTUS is a nationwide, cross-sectional survey that measures daily time use patterns of individuals and has been performed every five years by Statistics Korea. For this survey, all participants were asked to record their activities for 2 continuous days in 10-min intervals.
Among the 168,682 people who completed the survey in 2004 through 2019, the final analytical sample consisted of 91,998 individuals. Over 15 years, the sleep duration of the Korean population increased from 411.1 min (SD 22.5) in 2004 to 434.5 min (SD 26.1) in 2019 (p for trend <0.001). This increase was observed for all age groups. Over the study period, while bedtime showed no significant change, wake time was generally delayed for all age groups. The increase in sleep duration in the Korean population was largely due to catch-up sleep on Saturdays, which was substantially prolonged with belated wake times.
Our nationwide time use survey data showed that sleep duration in South Korea has increased over the past 15 years but still has room for improvement in terms of weekday sleep duration.
准确评估睡眠时间很重要，因为它可以作为一个国家整体健康和幸福感的指标之一。根据研究类型，全球睡眠时间趋势存在争议。我们使用时间日记法调查了韩国睡眠时间的趋势。
分析了 2004 年、2009 年、2014 年和 2019 年韩国时间使用调查（KTUS）的数据。KTUS 是一项全国性的横断面调查，用于测量个人的日常时间使用模式，由韩国统计厅每五年进行一次。在这项调查中，所有参与者被要求在连续两天内以 10 分钟的间隔记录他们的活动。
在 2004 年至 2019 年期间完成调查的 168682 人中，最终分析样本包括 91998 人。在 15 年的时间里，韩国人口的睡眠时间从 2004 年的 411.1 分钟（SD 22.5）增加到 2019 年的 434.5 分钟（SD 26.1）（p 趋势<0.001）。所有年龄段都出现了这种增长。在研究期间，尽管就寝时间没有显著变化，但所有年龄段的起床时间普遍延迟。韩国人口睡眠时间的增加主要归因于周六的补觉，而周六的补觉时间因起床时间推迟而大大延长。
我们的全国时间使用调查数据显示，过去 15 年来，韩国的睡眠时间有所增加，但在工作日睡眠时间方面仍有改进的空间。
