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The Indirect Association Between Alcohol Use and Suicide Ideation Through Perceived Burdensomeness and Thwarted
Cole Marvin1, Michael LeDuc1, Sean Mitchell1
1Department of Psychological Sciences, Texas Tech University, Lubbock, TX, USA.
Abstract:
Background: The interpersonal theory of suicide (ITS) may explain the link between alcohol use severity and suicidal ideation (SI) through interpersonal stressors at elevated alcohol use levels. Aims: This study aimed to clarify the indirect effects of perceived burdensomeness (PB) and thwarted belongingness (TB) in this relationship. Method: Cross-sectional data on SI, ITS, and alcohol use severity variables were collected via an online sample (N = 299) screened for lifetime suicidal thoughts or behaviors, nonsuicidal self-injury, and alcohol use. Associations were tested using linear regression with parallel mediators. Results: Alcohol use severity was indirectly linked to SI through the unique indirect effect of PB, and the total indirect effect of both TB and PB. Limitations: Limitations include the cross-sectional design and use of an online sample, which limit causal inferences and generalizability to other high-risk populations. Conclusion: PB and the additive indirect effect of TB and PB may explain the positive relation between alcohol use and SI; implications are discussed.
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