Comparison of sleep parameters from actigraphy and polysomnography in older women: The SOF study
Comparison of sleep parameters from actigraphy and polysomnography in older women: The SOF study
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DOI：
10.1093/sleep/31.2.283
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发表时间：
2008-02-01
期刊：
影响因子：
5.6
通讯作者：
Stone, Katie L.
中科院分区：
文献类型：
--
作者：
Blackwell, Terri;Redline, Susan;Stone, Katie L.
研究目的：将以3种不同模式收集的体动记录仪评估的总睡眠时间（TST）、睡眠效率（SE）和入睡后觉醒（WASO）与多导睡眠图（PSG）测量结果进行比较。将每种模式与PSG进行比较，以确定哪种模式更准确。TST测量的差异与人口统计学和睡眠特征的关联进行了研究。设计：观察性研究。设置：社区为基础。参与者：68名妇女（平均年龄81.9岁），同时进行PSG和体动仪测量。干预：N/A。测量和结果：沿着在3种模式下采集家庭12通道PSG和体动记录数据：比例积分模式（PIM）、阈值以上时间（达特）和过零模式（ZCM）。对于PIM模式，PSG和体动仪对TST和SE的估计存在显著差异（P < 0.01），而WASO的估计相似（P = 0.27）。两种手术之间的组内相关性为中度至高度（PIM模式：TST 0.76; SE 0.61; WASO 0.58）。平均而言，对于那些睡觉的人，PIM模式低估了TST 68分钟
Study Objectives: Total sleep time (TST), sleep efficiency (SE), and wake after sleep onset (WASO) as assessed by actigraphy gathered in 3 different modes were compared to polysomnography (PSG) measurements. Each mode was compared to PSG to determine which was more accurate. Associations of the difference in TST measurement with demographics and sleep characteristics were examined.Design: Observational study.Setting: Community-based.Participants: Sixty-eight women (mean age 81.9 years) from the latest visit of the Study of Osteoporotic Fractures who were concurrently measured with PSG and actigraphy.Interventions: N/A.Measurements and Results: In-home 12-channel PSG was gathered along with actigraphy data in 3 modes: proportional integration mode (PIM), time above threshold (TAT) and zero crossings mode (ZCM). The PIM mode corresponded better to PSG, with a mean overestimation of TST of 17.9 min. For the PIM mode, the estimation of TST and SE by PSG and actigraphy significantly differed (P < 0.01), while the estimation of WASO was similar (P = 0.27). The intraclass correlation between the 2 procedures was moderate to high (PIM mode: TST 0.76; SE 0.61; WASO 0.58). On average, the PIM mode underestimated TST by 68 min for those who slept