Periodic limb movements during sleep: population prevalence, clinical correlates, and racial differences.
Periodic limb movements during sleep: population prevalence, clinical correlates, and racial differences.
复制标题
睡眠期间周期性肢体运动：人群患病率、临床相关性和种族差异。
作者：
H. Scofield;T. Roth;C. Drake
研究目的
人们对睡眠期间周期性肢体运动及其潜在临床相关性的研究越来越感兴趣。本分析的目的是解决缺乏基于人群的研究，使用多导睡眠图（PSG）的措施，以确定在特定种族群体以及一般人群的睡眠期间的周期性肢体运动的患病率。
地点和对象
来自底特律三县普通人群的592名参与者的社区样本（平均年龄= 41.9 +/- 12.6岁; 52.9% F; 31.5%非裔美国人）。所有的人都在睡眠实验室进行了客观和主观的评估。
测量
参与者在24小时实验室评估期间进行评估，包括多导睡眠图和多次睡眠潜伏期测试。使用标准标准对周期性腿部运动进行评分。睡眠障碍和白天嗜睡的报告也使用标准化的措施，包括全球睡眠评估问卷（GSAQ）和埃普沃思嗜睡量表（ESS）进行评估。
结果
睡眠期间周期性肢体运动（PLMSI >15）的总体患病率为7.6%。非裔美国人PLMSI >15的患病率低于白人（4.3%对9.3%;卡方= 4.5，P < 0.05）。无论种族如何，PLMSI >15的个体的失眠症状显著高于PLMSI <或=15的个体（45% vs. 25%; chi 2 = 6.84，P < 0.01）。
结论
这是第一项使用标准化客观标准在基于人群的样本中确定PLMS患病率的研究。本研究的一个关键发现是，在这个PSG参数的种族差异确实存在，与非洲裔美国人不太可能有升高PLMS。
STUDY OBJECTIVE
There is growing interest in the study of periodic limb movements during sleep and their potential clinical correlates. The aim of the present analysis is to address the lack of population-based studies using polysomnographic (PSG) measures to determine the prevalence of period limb movements during sleep in specific racial groups as well as the general population.
SETTINGS AND PARTICIPANTS
A community-based sample of 592 participants drawn from the general population of tricounty Detroit (mean age = 41.9 +/- 12.6 years; 52.9% F; 31.5% African American). All individuals were assessed using objective and subjective measures in the sleep laboratory.
MEASUREMENTS
Participants were evaluated during a 24-h laboratory assessment, including a polysomnogram and multiple sleep latency test. Periodic leg movements were scored using standard criteria. Reports of sleep disturbance and daytime sleepiness were also assessed using standardized measures including the Global Sleep Assessment Questionnaire (GSAQ) and the Epworth Sleepiness Scale (ESS).
RESULTS
The overall prevalence of periodic limb movements during sleep (PLMSI >15) was 7.6%. African Americans had a lower prevalence of PLMSI >15 than Caucasians (4.3% vs. 9.3%; chi2= 4.5, P < 0.05). Regardless of race, symptoms of insomnia were significantly higher in individuals with PLMSI >15 than in those with PLMSI < or =15 (45% vs. 25%; chi2= 6.84, P < 0.01).
CONCLUSION
This is the first study to determine the prevalence of PLMS in a population-based sample using standardized objective criteria. A key finding of the present study is that racial differences in this PSG parameter do exist, with African Americans being less likely to have elevated PLMS.
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DOI：
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