Alcohol use, anxiety, and insomnia in older adults with generalized anxiety disorder.

Ivan MC, Amspoker AB, Nadorff MR, Kunik ME, Cully JA, Wilson N, Calleo J, Kraus-Schuman C, Stanley MA. Alcohol use, anxiety, and insomnia in older adults with generalized anxiety disorder. The American journal of geriatric psychiatry : official journal of the American Association for Geriatric Psychiatry. 2014 Sep 1; 22(9):875-83.

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Abstract:

OBJECTIVES: To examine alcohol consumption among older primary care patients with generalized anxiety disorder (GAD); its relationship to demographic variables, insomnia, worry, and anxiety; and its moderating role on the anxiety-insomnia relationship. We expected alcohol use to be similar to previous reports, correlate with higher anxiety and insomnia, and worsen the anxiety-insomnia relationship. DESIGN: Baseline data from a randomized controlled trial. SETTING: Michael E. DeBakey VA Medical Center and Baylor College of Medicine. PARTICIPANTS: 223 patients, 60 years and older, with GAD. MEASUREMENTS: Frequency of alcohol use, insomnia (Insomnia Severity Index), worry (Penn State Worry Questionnaire - Abbreviated, Generalized Anxiety Disorder Severity Scale), and anxiety (State-Trait Anxiety Inventory - Trait subscale, Structured Interview Guide for the Hamilton Anxiety Rating Scale [SIGH-A]). RESULTS: Most patients endorsed alcohol use, but frequency was low. Presence and frequency were greater than in previous reports of primary care samples. Alcohol use was associated with higher education, female gender, less severe insomnia, and lower worry (Generalized Anxiety Disorder Severity Scale) and anxiety (State-Trait Anxiety Inventory-Trait subscale; SIGH-A). Whites reported more drinks/week than African-Americans. More drinks/week were associated with higher education and lower anxiety (SIGH-A). Weaker relationships between worry/anxiety and insomnia occurred for those drinking. Drink frequency moderated the positive association between the Penn State Worry Questionnaire-Abbreviated and insomnia, which was lower with higher frequency of drinking. CONCLUSIONS: Older adults with GAD use alcohol at an increased rate, but mild to moderate drinkers do not experience sleep difficulties. A modest amount of alcohol may minimize the association between anxiety/worry and insomnia among this group.