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  • Title: Subclinical anxiety symptoms, sleep, and daytime dysfunction in older adults with primary insomnia.
    Author: Spira AP, Friedman L, Aulakh JS, Lee T, Sheikh JI, Yesavage JA.
    Journal: J Geriatr Psychiatry Neurol; 2008 Jun; 21(2):149-53. PubMed ID: 18474724.
    Abstract:
    Both insomnia complaints and anxiety disorders are common in older adults, and are associated with poor daytime functioning. The present study investigated whether subclinical levels of anxiety were associated with sleep disturbance and daytime functioning in older adults who met diagnostic criteria for primary insomnia, and therefore did not meet criteria for depression or an anxiety disorder. After adjustment for depressive symptoms, elevated state anxiety was associated with higher levels of wake after sleep onset (measured by both actigraphy and sleep log) and shorter sleep onset latency (measured by sleep log). Higher levels of trait anxiety were associated with greater wake after sleep onset (measured by sleep log). Elevated state and trait anxiety were associated with worse social functioning, and higher levels of trait anxiety were associated with worse role functioning. Thus, subclinical anxiety symptoms may be an important target for clinical intervention to improve sleep and functioning in older adults with primary insomnia.
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