Evidence map›Paper›PMID 33420133›Full record

ArticleScientific reports2021

Sleep classification from wrist-worn accelerometer data using random forests.

Kalaivani Sundararajan, Sonja Georgievska, Bart H W Te Lindert, Philip R Gehrman, Jennifer Ramautar, Diego R Mazzotti, Séverine Sabia, Michael N Weedon, Eus J W van Someren, Lars Ridder and 2 more

Abstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

41 citing papers in PubMed, 1 synthesis or guideline pooled it.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors.

Kalaivani SundararajanNetherlands eScience Center, Amsterdam, The Netherlands.
Sonja GeorgievskaNetherlands eScience Center, Amsterdam, The Netherlands.
Bart H W Te LindertDepartment of Sleep and Cognition, Netherlands Institute for Neuroscience, Amsterdam, The Netherlands.
Philip R GehrmanPerelman School of Medicine, University of Pennsylvania, Philadelphia, USA.
Jennifer RamautarDepartment of Sleep and Cognition, Netherlands Institute for Neuroscience, Amsterdam, The Netherlands.
Diego R MazzottiDivison of Medical Informatics, Department of Internal Medicine, University of Kansas Medical Center, Kansas City, KS, 66160, USA.
Séverine SabiaInserm U1153, EpiAgeing, Université de Paris, Paris, France.
Michael N WeedonUniversity of Exeter, Exeter, UK.
Eus J W van SomerenDepartment of Sleep and Cognition, Netherlands Institute for Neuroscience, Amsterdam, The Netherlands.
Lars RidderNetherlands eScience Center, Amsterdam, The Netherlands.
Jian WangEli Lilly and Company Ltd, Lilly Research Laboratories Neuroscience, Indianapolis, IN, 46285, USA.
Vincent T van HeesNetherlands eScience Center, Amsterdam, The Netherlands. v.vanhees@accelting.com.

Funding

Medical Research Council MR/P012167/1Medical Research Council MR/R024227/1
6 · The paper itself

Abstract

Accurate and low-cost sleep measurement tools are needed in both clinical and epidemiological research. To this end, wearable accelerometers are widely used as they are both low in price and provide reasonably accurate estimates of movement. Techniques to classify sleep from the high-resolution accelerometer data primarily rely on heuristic algorithms. In this paper, we explore the potential of detecting sleep using Random forests. Models were trained using data from three different studies where 134 adult participants (70 with sleep disorder and 64 good healthy sleepers) wore an accelerometer on their wrist during a one-night polysomnography recording in the clinic. The Random forests were able to distinguish sleep-wake states with an F1 score of 73.93% on a previously unseen test set of 24 participants. Detecting when the accelerometer is not worn was also successful using machine learning ([Formula: see text]), and when combined with our sleep detection models on day-time data provide a sleep estimate that is correlated with self-reported habitual nap behaviour ([Formula: see text]). These Random forest models have been made open-source to aid further research. In line with literature, sleep stage classification turned out to be difficult using only accelerometer data.

Indexed as

AccelerometryAdolescentAdultAgedAlgorithmsDeep LearningFemaleHumansMachine LearningMaleMiddle AgedPolysomnographySleepSleep StagesSleep Wake DisordersWearable Electronic Devices

Identifiers

PMID33420133
PMCPMC7794504

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.