Bartlett D J, Marshall N S, Williams A, Grunstein R R
Woolcock Institute of Medical Research and the National Health and Medical Research Council of Australia Centre for Respiratory and Sleep Medicine, Sydney, New South Wales, Australia.
Intern Med J. 2008 Jan;38(1):24-31. doi: 10.1111/j.1445-5994.2007.01395.x. Epub 2007 Jun 2.
The aim of this study was to provide the first population-based descriptions of typical sleep duration and the prevalence of chronic sleep restriction and chronic sleepiness in community-dwelling Australian adults.
Ten thousand subjects randomly selected from the New South Wales electoral roll, half aged 18-24 years and the other half aged 25-64 years were posted a questionnaire asking about sleep behaviour, sleepiness and sleep disorders.
Responses were received from 3300 subjects (35.6% response rate). The mean +/- standard deviation of sleep duration was 7.25 +/- 1.48 h/night during the week and 7.53 +/- 2.01 h/night in the weekends. Of the working age group, 18.4% reported sleeping less than 6.5 h/night. Chronic daytime sleepiness was present in 11.7%. Logistic modelling indicated that the independent risk factors for excessive daytime sleepiness were being older, sleeping less than 6.5 h per night during the week, getting qualitatively insufficient sleep, having at least one symptom of insomnia and lacking enthusiasm (marker of depression).
In New South Wales almost one-fifth of the people are chronically sleep restricted and 11.7% are chronically sleepy. Chronic sleepiness was most commonly associated with voluntarily short sleep durations and symptoms of insomnia and depression. If the experimentally observed health effects of sleep restriction also operate at a population level, this prevalence of chronic sleep restriction is likely to have a significant influence on public health in Australia.
本研究旨在首次基于人群描述澳大利亚社区居住成年人的典型睡眠时间、慢性睡眠限制和慢性嗜睡的患病率。
从新南威尔士州选民名册中随机选取一万名受试者，其中一半年龄在18 - 24岁，另一半年龄在25 - 64岁，向他们发放一份关于睡眠行为、嗜睡和睡眠障碍的问卷。
共收到3300名受试者的回复（回复率为35.6%）。一周内睡眠时间的均值±标准差为7.25±1.48小时/晚，周末为7.53±2.01小时/晚。在工作年龄组中，18.4%的人报告每晚睡眠时间少于6.5小时。慢性日间嗜睡的发生率为11.7%。逻辑模型表明，日间过度嗜睡的独立危险因素包括年龄较大、一周内每晚睡眠时间少于6.5小时、睡眠质量不足、至少有一种失眠症状以及缺乏热情（抑郁的标志）。
在新南威尔士州，近五分之一的人长期睡眠受限，11.7%的人长期嗜睡。慢性嗜睡最常与自愿缩短睡眠时间、失眠和抑郁症状相关。如果实验观察到睡眠限制对健康的影响在人群层面也存在，那么这种慢性睡眠限制的患病率可能会对澳大利亚的公共卫生产生重大影响。
