Actigraphy in Older Adults: Comparison of Means and Variability of Three Different Aggregates of Measurement
Digital Object Identifier (DOI)
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.
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Citation / Publisher Attribution
Behavioral sleep medicine, v. 6, issue 2, p. 127-145
Scholar Commons Citation
Rowe, Meredeth; McCrae, Christina S.; Campbell, Judy; Horne, Claydell; Tiegs, Tom; Lehman, Brandy; and Cheng, Jing Q., "Actigraphy in Older Adults: Comparison of Means and Variability of Three Different Aggregates of Measurement" (2008). Nursing Faculty Publications. 35.