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Daily Variations in Objective Nighttime Sleep and Subjective Morning Pain in Older Adults with Insomnia: Evidence of Covariation over Time
Author(s) -
Dzierzewski Joseph M.,
Williams Jacob M.,
Roditi Daniela,
Marsiske Michael,
McCoy Karin,
McNamara Joseph,
Dautovich Natalie,
Robinson Michael E.,
McCrae Christina S.
Publication year - 2010
Publication title -
journal of the american geriatrics society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.992
H-Index - 232
eISSN - 1532-5415
pISSN - 0002-8614
DOI - 10.1111/j.1532-5415.2010.02803.x
Subject(s) - insomnia , medicine , morning , sleep (system call) , actigraphy , physical therapy , association (psychology) , sleep disorder , crossover study , cross sectional study , psychiatry , psychology , computer science , alternative medicine , pathology , placebo , psychotherapist , operating system
OBJECTIVES: To examine the relationship between objectively measured nocturnal sleep and subjective report of morning pain in older adults with insomnia; to examine not only the difference between persons in the association between sleep and pain (mean level over 14 days), but also the within‐person, day‐to‐day association. DESIGN: Cross‐sectional. SETTING: North‐central Florida. PARTICIPANTS: Fifty community‐dwelling older adults (mean age±standard deviation 69.1±7.0, range 60–90) with insomnia. MEASUREMENTS: Daily home‐based assessment using nightly actigraphic measurement of sleep and daily self‐report of pain over 14 consecutive days. RESULTS: Between persons, average sleep over 14 days was not associated with average levels of rated pain, but after a night in which an older adult with insomnia experienced above‐average total sleep time he or she subsequently reported below‐average pain ratings. The model explained approximately 24% of the within‐person and 8% of the between‐person variance in pain ratings. CONCLUSIONS: Sleep and pain show day‐to‐day associations (i.e., covary over time) in older adults with insomnia. Such associations may suggest that common physiological systems underlie the experience of insomnia and pain. Future research should examine the crossover effects of sleep treatment on pain and of pain treatment on sleep.