Association Between Insomnia Symptoms and Weight Change in Older Women: Caregiver-Study of Osteoporotic Fractures Study

作者：Ross Craig; Ancoli Israel Sonia; Redline Susan; Stone Katie; Fredman Lisa^*

来源：Journal of the American Geriatrics Society, 2011, 59(9): 1697-1704.

DOI：10.1111/j.1532-5415.2011.03569.x

• insomnia
• weight change
• medications
• aged
• women

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. J Am Geriatr Soc 59: 1697-1704, 2011.

• 出版日期2011-9