与多睡眠监测相比,Verily Study表用于测量睡眠的性能
Sohrab Saeb1, Benjamin W Nelson1,2, Poulami Barman1
1Verily Life Sciences, South San Francisco, CA, United States.
概括
真正研究观察 (VSW) 显示了追踪睡眠的前景,准确地分类睡眠与清醒状态. 虽然一些睡眠测量,如总睡眠时间显示偏差,但VSW适合自由生活的睡眠监测.
科学领域:
- 可穿戴技术是可穿戴的技术.
- 睡眠科学 睡眠科学
- 生物医学工程 生物医学工程
背景情况:
- 多睡眠学 (PSG) 是睡眠评估的黄金标准,但资源密集型.
- 可穿戴设备为方便的长期睡眠监测提供了潜在的替代方案.
- 穿戴设备准确检测睡眠对于临床和研究应用至关重要.
研究的目的:
- 为了评估Verily Study Watch (VSW) 与PSG对关键睡眠指标的性能.
- 评估VSW在睡眠中的准确性与觉醒分类和睡眠阶段检测.
- 量化VSW衍生的睡眠参数与PSG的偏差和一致性.
主要方法:
- 从41名成年人中收集的数据是在一个单一的夜间实验室PSG.
- 对于睡眠/清醒和睡眠阶段的分类,VSW和PSG的时代比较.
- 分析总睡眠时间 (TST),睡眠开始后的觉醒 (WASO),睡眠开始延迟 (SOL),睡眠效率 (SE) 和觉醒次数 (NAWK).
- 性能指标包括灵敏度,特异性,科恩的卡帕和布兰德-阿尔特曼分析.
主要成果:
- 高灵敏度 (0.97) 和特异性 (0.70) 对于睡眠与觉醒分类.
- 科恩的kappa为0.64用于4级睡眠阶段检测,表明中度的协议.
- 在大多数VSW睡眠测量中观察到的比例偏差,在TST (14.0分钟) 和WASO (-13.1分钟) 中显著的平均偏差.
- 低偏差用于睡眠开始延迟和唤醒次数.
结论:
- "真实研究手表"在睡眠与觉醒检测方面表现良好,在睡眠阶段测定方面准确度中等.
- 虽然一些睡眠参数表现出偏差,但VSW是一种可行的工具,可以在自由生活条件下跟踪夜间睡眠.
- 进一步的研究可能会改进算法,以最大限度地减少特定睡眠指标的偏差,以提高准确性.
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