Dregan Alex, Armstrong David
University of Surrey, Guildford, Surrey, UK.
Soc Sci Med. 2009 Nov;69(10):1432-8. doi: 10.1016/j.socscimed.2009.08.041. Epub 2009 Sep 15.
Using two longitudinal and nationally representative datasets, this study employs a cross-cohort analysis to examine age, cohort and period effects in the prevalence of sleep loss through worry for people over the age of 50 in the UK. The likelihood of reporting sleep loss through worry is calculated at two time-points for 7785 respondents from the Health and Activity Survey (HALs) and 21,834 respondents from the English Longitudinal Study of Ageing (ELSA), with baseline information on sleep loss through worry. Descriptive statistical methods were applied to determine the prevalence rates in sleep loss through worry at each survey within both datasets. The results of analysis reveal that sleep loss through worry declined with age, but this pattern was tempered by a temporary increase in the early 1990s. The contemporary economic downturn is suggested as a possible explanation for the significant increase in the prevalence of sleep loss through worry in 1991.
本研究使用两个具有全国代表性的纵向数据集，采用跨队列分析方法，以考察英国50岁以上人群因担忧而导致睡眠不足患病率的年龄、队列和时期效应。通过对来自健康与活动调查（HALs）的7785名受访者以及来自英国老龄化纵向研究（ELSA）的21834名受访者在两个时间点报告因担忧而睡眠不足的可能性进行计算，这些受访者均有关于因担忧而睡眠不足的基线信息。运用描述性统计方法来确定两个数据集中每次调查时因担忧而睡眠不足的患病率。分析结果显示，因担忧而导致的睡眠不足患病率随年龄增长而下降，但这种模式在20世纪90年代初因暂时上升而有所缓和。当代经济衰退被认为是1991年因担忧而导致睡眠不足患病率显著上升的一个可能解释。
