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Association Between Insomnia Symptoms and Weight Change in Older Women: Caregiver—Study of Osteoporotic Fractures Study
Author(s) -
Ross Craig,
AncoliIsrael Sonia,
Redline Susan,
Stone Katie,
Fredman Lisa
Publication year - 2011
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.1532-5415.2011.03569.x
Subject(s) - medicine , insomnia , weight loss , weight change , prospective cohort study , cohort study , cohort , association (psychology) , weight gain , sleep (system call) , physical therapy , gerontology , psychiatry , obesity , body weight , psychology , computer science , psychotherapist , operating system
OBJECTIVES: To determine whether self‐reported insomnia symptoms were associated with weight change in older women and whether caregiving, comorbidities, sleep medication, or stress modified this association.DESIGN: One‐year prospective study conducted in four communities from 1999 to 2003 nested within a larger cohort study.SETTING: Home‐based interviews.PARTICIPANTS: Nine hundred eighty‐eight participants (354 caregivers and 634 noncaregivers) from the Caregiver—Study of Osteoporotic Fractures.MEASUREMENTS: Self‐reported insomnia symptoms in the previous month: trouble falling asleep, trouble staying asleep, and waking early and having trouble getting back to sleep. Weight was measured at baseline and 12 months.RESULTS: The average weight change was −1.9±7.8 pounds. Trouble staying asleep was significantly associated with an average weight loss of 1.3 pounds ( P =.03) in multivariable analyses. Neither of the other insomnia symptoms was associated with weight change. Use of sleep medications modified the association between trouble falling asleep (interaction term P =.03) and weight change. Insomnia symptoms were associated with weight loss only in women not taking sleep medications. Neither caregiving status, presence of multiple comorbidities, nor stress modified the association.CONCLUSION: Trouble staying asleep was associated with weight loss over 12 months in older women. Practitioners should inquire about sleep habits of patients presenting with weight loss, because this may identify a marker of declining health and may be a factor that can be modified.