This is the program for the 2010 Joint Statistical Meetings in Vancouver, British Columbia.
Abstract Details
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Activity Number:
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677
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Type:
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Contributed
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Date/Time:
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Thursday, August 5, 2010 : 10:30 AM to 12:20 PM
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Sponsor:
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Biometrics Section
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| Abstract - #309304 |
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Title:
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Accuracy, Bias, and Notable Observations for Experimental Actigraphy Data
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Author(s):
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Juergen Symanzik*+ and Peter M. Sherick and William D. Shannon
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Companies:
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Utah State University and Utah State University and Washington University School of Medicine
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Address:
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Department of Mathematics and Statistics, Logan, UT, 84322-3900, USA
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Keywords:
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Actical ;
Actigraph ;
Measurement Error ;
Precision ;
Sleep Medicine
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Abstract:
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Actigraphy is an emerging technology for measuring a patient's overall activity level nearly continuously over time. An actigraph is a watch-like device attached to the wrist or ankle that uses an accelerometer to measure movement every minute, or even more often. Numerous medical studies make use of actigraphs to assess patients' actigraphy levels. However, little backgroud information usually is provided on the quality of the data recorded by various actigraphs. We have conducted a series of experiments with multiple Actical actigraphy devices that are manufactured by the Mini Mitter Company. In this paper, we will present our observations regarding the accuracy, bias, and other notable observations for these actigraphy devices.
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Authors who are presenting talks have a * after their name.
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