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  Actigraphy in Older Adults: Comparison of Means and Variability of Three Different Aggregates of Measurement
 
 
Title: Actigraphy in Older Adults: Comparison of Means and Variability of Three Different Aggregates of Measurement
Author: Rowe, Meredeth
McCrae, Christina
Campbell, Judy
Horne, Claydell
Tiegs, Tom
Lehman, Brandy
Cheng, Jing
Appeared in: Behavioral sleep medicine
Paging: Volume 6 (2008) nr. 2 pages 127-145
Year: 2008-04
Contents: Actigraphy has emerged as a valuable method for measuring natural sleep patterns; however, it is unclear how many consecutive nights should be measured and what sleep parameter values are typical of older adults. This study examined sleep in relatively healthy community-based older adults for 14 consecutive days. The findings present comparison values for Actiwatch-L actigraphy in older adults, and can be used to determine an appropriate length of measurement. When using means of the aggregate period, a 3-day aggregate is comparable to the values obtained over 7- or 14-day aggregates. However, if variability of the sleep parameter is of interest, a minimum of a 7-day aggregate is needed, and 14-day aggregates are better when measuring sleep onset latency.
Publisher: Routledge
Source file: Elektronische Wetenschappelijke Tijdschriften
 
 

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