A validation study of a ballistocardiograph sleep tracker against polysomnography
A validation study of a ballistocardiograph sleep tracker against polysomnography
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DOI：
10.5664/jcsm.9754
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发表时间：
2022-04-01
影响因子：
4.3
通讯作者：
Zhang, Qing
中科院分区：
文献类型：
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作者：
Kholghi, Mahnoosh;Szollosi, Irene;Zhang, Qing
研究目的：消费者家庭睡眠跟踪器为纵向客观睡眠监测提供了一个很好的机会。非穿戴式睡眠设备对日常生活的干扰很小，几乎不需要维护。然而，其有效性需要进一步调查。本研究的目的是评估睡眠结果的准确性EMFIT量化睡眠（QS），一个不显眼的非穿戴式睡眠跟踪器的基础上心冲击描记术，对polysomnography.Methods：62睡眠实验室患者进行了一个单一的临床多导睡眠图测量同时收集通过polysomnography和EMFIT QS。使用配对t检验比较从2种器械收集的静息心率、总睡眠时间、入睡后觉醒、入睡潜伏期和睡眠阶段持续时间，并使用Bland-Altman图分析其一致性。此外，连续的心率和睡眠阶段在30秒epochs.Results：EMFIT QS数据丢失发生在47%的参与者。在剩下的33名参与者中（15名女性，平均年龄53.7 ± 16.5岁），EM FIT QS高估了总睡眠时间177.5 ± 119.4分钟（p
Study Objectives: Consumer home sleep trackers provide a great opportunity for longitudinal objective sleep monitoring. Nonwearable sleep devices cause little to no disruption in the daily life routine and need little maintenance. However, their validity needs further investigation. This study aims to evaluate the accuracy of sleep outcomes of EMFIT Quantified Sleep (QS), an unobtrusive nonwearable sleep tracker based on ballistocardiography, against polysomnography.Methods: 62 sleep-lab patients underwent a single clinical polysomnography with measures simultaneously collected through polysomnography and EMFIT QS. Resting heart rate, total sleep time, wake after sleep onset, sleep onset latency, and duration in sleep stages, collected from the 2 devices, were compared using paired t-tests and their agreement analyzed using Bland-Altman plots. Additionally, continuous heart rate and sleep stages in 30-seconds epochs were evaluated.Results: EMFIT QS data loss occurred in 47% of participants. In the remaining 33 participants (15 women, with mean age of 53.7 +/- 16.5 years), EM FIT QS overestimated total sleep time by 177.5 +/- 119.4 minutes (p