Michael R Nadorff1, Taban Salem2, E Samuel Winer2, Dorian A Lamis3, Sarra Nazem4, Mitchell E Berman2. 1. Mississippi State University, Mississippi State, MS; Baylor College of Medicine, Houston, TX. 2. Mississippi State University, Mississippi State, MS. 3. Emory School of Medicine, Atlanta, GA. 4. VISN 19 Mental Illness Research, Education and Clinical Center, Denver, CO.
Abstract
STUDY OBJECTIVES: The purpose of the study was to examine whether insomnia symptoms and nightmares mediated the relation between alcohol use and suicide risk. Further, we examined whether this mediation was moderated by gender. DESIGN: The study consisted of questionnaires administered online examining insomnia symptoms, nightmares, alcohol use, and suicide risk. SETTING: University. PATIENTS OR PARTICIPANTS: 375 undergraduate students at a large, public university in the southeastern United States. INTERVENTIONS: N/A. MEASUREMENTS AND RESULTS: Results indicated that insomnia symptoms significantly mediated the relation between alcohol use and suicide risk; however, this mediation was moderated by gender. For women, there was both a direct effect of alcohol use on suicide risk as well as an indirect effect of alcohol use through insomnia symptoms increasing suicide risk. For men, there was no direct effect of alcohol use on suicide risk, but there was a significant indirect effect of alcohol use increasing suicide risk through insomnia symptoms. Nightmares were not related to alcohol use, and the association between nightmares and suicide risk was found to be independent of alcohol use. CONCLUSIONS: Insomnia symptoms are an important factor in explaining the mechanism by which alcohol use increases suicide risk.
STUDY OBJECTIVES: The purpose of the study was to examine whether insomnia symptoms and nightmares mediated the relation between alcohol use and suicide risk. Further, we examined whether this mediation was moderated by gender. DESIGN: The study consisted of questionnaires administered online examining insomnia symptoms, nightmares, alcohol use, and suicide risk. SETTING: University. PATIENTS OR PARTICIPANTS: 375 undergraduate students at a large, public university in the southeastern United States. INTERVENTIONS: N/A. MEASUREMENTS AND RESULTS: Results indicated that insomnia symptoms significantly mediated the relation between alcohol use and suicide risk; however, this mediation was moderated by gender. For women, there was both a direct effect of alcohol use on suicide risk as well as an indirect effect of alcohol use through insomnia symptoms increasing suicide risk. For men, there was no direct effect of alcohol use on suicide risk, but there was a significant indirect effect of alcohol use increasing suicide risk through insomnia symptoms. Nightmares were not related to alcohol use, and the association between nightmares and suicide risk was found to be independent of alcohol use. CONCLUSIONS:Insomnia symptoms are an important factor in explaining the mechanism by which alcohol use increases suicide risk.
Authors: Michael S McCloskey; Mitchell E Berman; David J Echevarria; Emil F Coccaro Journal: Alcohol Clin Exp Res Date: 2009-01-12 Impact factor: 3.455
Authors: Subhajit Chakravorty; Michael A Grandner; Shahrzad Mavandadi; Michael L Perlis; Elliott B Sturgis; David W Oslin Journal: Addict Behav Date: 2013-10-12 Impact factor: 3.913