Intellectual Disability Medicine, Erasmus Medical Centre Rotterdam, Department of General Practice, Rotterdam, the Netherlands.
J Intellect Disabil Res. 2012 Feb;56(2):204-11. doi: 10.1111/j.1365-2788.2011.01458.x. Epub 2011 Aug 1.
The aim of this study was to explore the use of actigraphy to investigate sleep problems in a convenience sample of clients of Dutch intellectual disability (ID) care providers. Based on data obtained in a large multi-centre study on healthy ageing in people with ID, research questions were: 'To what degree are actigraphic measurements successful in this population?' and 'What is the influence of different sensitivity settings of the Actiwatch Sleep Analysis software on the distribution of sleep variables in this group?'
Data were collected in a cross-sectional descriptive study design. We included 563 participants, aged 50 years or older, with borderline to profound ID. Sleep-wake data were measured continuously during 14 days and nights using the Actiwatch AW7. A complete measurement of at least 7 days and nights, including at least one weekend day, was considered successful. Objective variables of sleep were analysed using different sensitivity settings of the Actiwatch AW7 Sleep Analysis software.
In 200 participants (35.5%), a successful measurement was obtained. Unsuccessful measurements were caused primarily by problems with wearing the device and incomplete information on bed time and get up time. Of 382 participants who started wearing the Actiwatch, 354 (92.3%) wore it for at least 7 days. Application of different sensitivity settings of the Sleep Analysis software resulted in clear differences of all sleep parameters.
Further research is needed into the validity of objective sleep parameters, as measured with the Actiwatch, for screening and epidemiological research in older people with ID. It needs to be investigated which sensitivity setting of the Actiwatch gives most valid results in this specific group, whereas reference data on sleep parameters and cut-off values are to be obtained.
本研究旨在探索使用活动记录仪调查荷兰智力障碍（ID）护理提供者的便利样本中的睡眠问题。基于在一项关于 ID 人群健康老龄化的大型多中心研究中获得的数据，提出了以下研究问题：“在该人群中，活动记录仪测量的成功率如何？”和“Actiwatch Sleep Analysis 软件的不同灵敏度设置对该组睡眠变量分布的影响是什么？”
本研究采用横断面描述性研究设计。我们纳入了 563 名年龄在 50 岁及以上、有边缘至重度 ID 的参与者。使用 Actiwatch AW7 连续 14 天 14 夜记录睡眠-觉醒数据。被认为成功的测量需要至少 7 天 7 夜的完整测量，其中至少包括一个周末。使用 Actiwatch AW7 Sleep Analysis 软件的不同灵敏度设置分析睡眠的客观变量。
在 200 名参与者（35.5%）中，获得了成功的测量。不成功的测量主要是由于佩戴设备的问题和床上时间和起床时间的信息不完整导致的。在开始佩戴 Actiwatch 的 382 名参与者中，有 354 名（92.3%）佩戴了至少 7 天。应用 Actiwatch Sleep Analysis 软件的不同灵敏度设置导致所有睡眠参数都有明显差异。
需要进一步研究使用 Actiwatch 测量的客观睡眠参数在 ID 老年人筛查和流行病学研究中的有效性。需要研究 Actiwatch 的哪种灵敏度设置在该特定人群中给出最有效的结果，同时需要获得睡眠参数的参考数据和截断值。
