Detecting Sleep and Nonwear in 24-h Wrist Accelerometer Data from the National Health and Nutrition Examination Survey.
Detecting Sleep and Nonwear in 24-h Wrist Accelerometer Data from the National Health and Nutrition Examination Survey.
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DOI:
10.1249/mss.0000000000002973
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发表时间:
2022-11-01
影响因子:
4.1
通讯作者:
Intille S
中科院分区:
文献类型:
--
作者:
Thapa-Chhetry B;Arguello DJ;John D;Intille S
Estimating physical activity, sedentary behavior, and sleep from wrist-worn accelerometer data requires reliable detection of sensor non-wear and sensor wear during both sleep and wake. To develop an algorithm that simultaneously identifies sensor wake-wear, sleep-wear, and non-wear in 24-hour wrist-accelerometer data collected with or without filtering. Using sensor data labeled with polysomnography (N=21) and directly observed wake-wear data (N=31) from healthy adults, and non-wear data from sensors left at various locations in a home (N=20), we developed an algorithm to detect non-wear, sleep-wear, and wake-wear for ‘idle sleep mode’ (ISM) filtered data collected in the 2011–2014 National Health and Nutrition Examination Survey. The algorithm was then extended to process original raw data collected from devices without ISM filtering. Both algorithms were further validated using a polysomnography-based sleep and wake-wear dataset (N=22) and diary-based wake-wear and non-wear labels from healthy adults (N=23). Classification performance (F1-scores) was compared to four alternative approaches. F1-score of the ISM-based algorithm on the training dataset using leave-one-subject-out cross-validation was 0.95±0.13. Validation on the two independent datasets yielded F1-scores of 0.84±0.60 for the dataset with sleep-wear and wake-wear and 0.94±0.04 for the dataset with wake-wear and non-wear. F1 score when using original, raw data was 0.96±0.08 for the training datasets and 0.86±0.18 and 0.97±0.04 for the two independent validation datasets. The algorithm performed comparably or better than the alternative approaches on the datasets. A novel machine-learning algorithm was designed to recognize wake-wear, sleep-wear, and non-wear in 24-hour wrist-worn accelerometer data that is applicable for ISM-filtered data or original raw data.