ACTIVITY-BASED SLEEP-WAKE IDENTIFICATION - AN EMPIRICAL-TEST OF METHODOLOGICAL ISSUES
ACTIVITY-BASED SLEEP-WAKE IDENTIFICATION - AN EMPIRICAL-TEST OF METHODOLOGICAL ISSUES
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DOI：
10.1093/sleep/17.3.201
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发表时间：
1994-04-01
期刊：
影响因子：
5.6
通讯作者：
CARSKADON, MA
中科院分区：
文献类型：
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作者：
SADEH, A;SHARKEY, KM;CARSKADON, MA
在一个实验室夜晚，使用20名成人和16名青少年的惯用手和非惯用手的多导睡眠图和腕部活动图数据，评估活动图放置和设备灵敏度对活动图自动睡眠-觉醒评分的影响。尽管在睡眠期间（F = 4.57; p < 0.05）和清醒期间（F = 15.5; p < 0.0005），优势手腕和非优势手腕之间的活动水平有所不同，但由此产生的睡眠-清醒评分算法基本相同，并且具有同等的解释性（R（2）= 0.64; P < 0.0001）。当睡眠-觉醒评分算法来自于非优势的手被用来评分睡眠-觉醒的非优势数据，与多导睡眠图评分的总体一致率范围为91%和93%之间的校准和验证样本。对于优势腕数据，使用相同算法获得的结果在相同范围内。睡眠评分的一致性始终高于清醒评分。在应用评分算法之前对活动水平的统计操作表明，该算法对于活动水平的适度变化是相当稳健的。使用“双腕活动记录仪”能够识别可能由呼吸相关运动引起的伪影。
The effects of actigraph placement and device sensitivity on actigraphic automatic sleep-wake scoring were assessed using concomitant polysomnographic and wrist actigraphic data from dominant and nondominant hands of 20 adults and 16 adolescents during 1 laboratory night. Although activity levels differed between dominant and nondominant wrists during periods of sleep (F = 4.57; p < 0.05) and wake (F = 15.5; p < 0.0005), resulting sleep-wake scoring algorithms were essentially the same and were equally explanatory (R(2) = 0.64; P < 0.0001). When the sleep-wake scoring algorithm derived from the nondominant hand was used to score the nondominant data for sleep-wake, overall agreement rates with polysomnography scoring ranged between 91 and 93% for the calibration and validation samples. Results obtained with the same algorithm for the dominant-wrist data were within the same range. Agreement for sleep scoring was consistently higher than for wake scoring. Statistical manipulation of activity levels before applying the scoring algorithm indicated that this algorithm is quite robust toward moderate changes in activity level. Use of ''twin-wrist actigraphy'' enables identification of artifacts that may result from breathing-related motions.