0911 What Predicts Perceived Social Support In Patients With Comorbid Alcohol Use Disorder (AUD) And Insomnia?

Abstract

Introduction: Prior studies have demonstrated interpersonal problems in those suffering from insomnia disorder, AUD, and in those with comorbid insomnia with AUD. Although perceived social support has been shown to play an important role in helping or hampering their recovery, very little knowledge exists on the perceived social support in actively drinking treatment-seeking individuals with AUD and insomnia, a high-risk group of patients. Methods: A cross-sectional study of baseline data from a treatment study of Veterans with AUD with comorbid insomnia (N=40). The following rating scales assessed the relevant clinical domains: Interpersonal Support Evaluation List-12 items (ISEL), Insomnia Severity Index (ISI, insomnia) and sleep diaries (insomnia symptoms), Time Line Follow Back interview (alcohol consumption in the last 90 days), Short Index of Problems (SIP, psychosocial problems from the drinking), GAD-7 (anxiety symptoms) and TBI screener (traumatic brain injury). Linear regression analyses evaluated the association between ISEL total score (outcome) and clinical scales (predictors). Results: The Veterans had a relatively high mean ISEL total score at 19.5(SD=9.3). The ISI total score was 19.4 (SD=3.4), GAD-7 total score was 9.1(SD=5.1), PACS total score was 9.9 (SD=7.0) and SIP total score was 20.0(SD=14.4). They consumed 8.9 (SD=8.2) alcoholic drinks per day. About 64% reported a lifetime history of significant brain injury. Individual predictors of the ISEL total score were ISI total score (β=-1.1, p = 0.007), anxiety symptoms (β=-0.9, p<0.001), SIP total score (β=-0.3, p=0.002), PACS total score (β=-0.5, p = 0.01), presence of TBI (β=-6.5, p = 0.02). Heavy drinking or sleep diary variables including SOL, WASO, TST and SE were not associated with ISEL total score. In an optimal model (adjusted R2=0.37, p=0.0008), the ISEL total score was only predicted by GAD-7 total score (β=-0.70, p=0.02), the presence of TBI (β=-6.7, p=0.02). ISI total score or the sleep diary variables did not optimize the model. Conclusion: Anxiety symptoms and a lifetime history of TBI may hamper Veterans with AUD and insomnia developing functional social supports.