Actigraphic Sleep Detection for Real-World Data of Healthy Young Adults and People with Alzheimer’s Disease

Stefan Lüdtke, Albert Hein, Frank Krüger, Sebastian Bader, Thomas Kirste

2017

Abstract

Actigraphy can be used to examine the sleep pattern of patients during the course of the day in their common environment. However, conventional sleep detection algorithms may not be appropriate for real-world daytime sleep detection, since they tend to overestimate the sleep duration and have only been validated for nighttime sleep in a laboratory setting. Therefore, we evaluated the performance of a set of new sleep detection algorithms based on machine learning methods in a real-world setting and compared them to two conventional sleep detection algorithms (Cole’s algorithm and Sadeh’s algorithm). For that, we performed two studies with (1) healthy young adults and (2) nursing home residents with Alzheimer’s dementia. The conventional algorithms performed poorly for these real-world data sets, because they are imbalanced with respect to sensitivity and specificity. A more balanced Hidden Markov Model-based algorithm surpassed the conventional algorithms for both data sets. Using this algorithm leads to an improved accuracy of 4.1 percent points (pp) and 23.5 pp, respectively, compared to the conventional algorithms. The Youden-Index improved by 7.3 and 7.7, respectively. Overall, for a real-world setting, the HMM-based algorithm achieved a performance similar to conventional algorithms in a laboratory environment.

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Paper Citation


in Harvard Style

Lüdtke S., Hein A., Krüger F., Bader S. and Kirste T. (2017). Actigraphic Sleep Detection for Real-World Data of Healthy Young Adults and People with Alzheimer’s Disease. In - BIOSIGNALS, (BIOSTEC 2017) ISBN , pages 0-0. DOI: 10.5220/0006158800001488


in Bibtex Style

@conference{biosignals17,
author={Stefan Lüdtke and Albert Hein and Frank Krüger and Sebastian Bader and Thomas Kirste},
title={Actigraphic Sleep Detection for Real-World Data of Healthy Young Adults and People with Alzheimer’s Disease},
booktitle={ - BIOSIGNALS, (BIOSTEC 2017)},
year={2017},
pages={},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0006158800001488},
isbn={},
}


in EndNote Style

TY - CONF

JO - - BIOSIGNALS, (BIOSTEC 2017)
TI - Actigraphic Sleep Detection for Real-World Data of Healthy Young Adults and People with Alzheimer’s Disease
SN -
AU - Lüdtke S.
AU - Hein A.
AU - Krüger F.
AU - Bader S.
AU - Kirste T.
PY - 2017
SP - 0
EP - 0
DO - 10.5220/0006158800001488