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Thwarted belongingness as an explanatory link between insomnia symptoms and suicidal ideation: Findings from three samples of military service members and veterans.
J Affect Disord. 2017 Feb; 209:114-123.JA

Abstract

BACKGROUND

Although insomnia has been identified as a robust predictor of suicidal ideation and behaviors, little is known about the mechanisms by which sleep disturbances confer risk for suicide. We investigated thwarted belongingness as an explanatory link between insomnia symptoms and suicidal ideation across three military service member and veteran samples.

METHODS

Data were collected among United States military service members and veterans (N1=937, N2=3,386, N3=417) who completed self-report measures of insomnia symptoms, thwarted belongingness, suicidal ideation, and related psychiatric symptoms (e.g., anxiety, hopelessness). Bias-corrected bootstrap mediation analyses were utilized to examine the indirect effects of insomnia symptoms on suicidal ideation through thwarted belongingness, controlling for related psychiatric symptoms.

RESULTS

Consistent with study hypotheses, thwarted belongingness significantly accounted for the relationship between insomnia and suicidal ideation across all three samples; however, insomnia symptoms did not significantly account for the relationship between thwarted belongingness and suicidal ideation, highlighting the specificity of our findings.

LIMITATIONS

This study utilized cross-sectional self-report data.

CONCLUSIONS

Insomnia may confer suicide risk for military service members and veterans, in part, through the pathway of thwarted belongingness. Additional prospective studies are warranted to further delineate this model of risk. Our results offer a potential therapeutic target for the prevention of suicide, via the promotion of belongingness, among service members and veterans experiencing insomnia symptoms.

Authors+Show Affiliations

Department of Psychology, Florida State University, United States. Electronic address: hom@psy.fsu.edu.Department of Psychology, Florida State University, United States.Department of Psychology, Florida State University, United States.Office of the Army Surgeon General, United States.Department of Psychology, East Tennessee State University, United States.Rocky Mountain Mental Illness Research, Education and Clinical Center, Denver Veterans Affairs Medical Center, United States; Department of Psychiatry, University of Colorado School of Medicine, United States.Department of Psychology, Florida State University, United States.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

27898373

Citation

Hom, Melanie A., et al. "Thwarted Belongingness as an Explanatory Link Between Insomnia Symptoms and Suicidal Ideation: Findings From Three Samples of Military Service Members and Veterans." Journal of Affective Disorders, vol. 209, 2017, pp. 114-123.
Hom MA, Chu C, Schneider ME, et al. Thwarted belongingness as an explanatory link between insomnia symptoms and suicidal ideation: Findings from three samples of military service members and veterans. J Affect Disord. 2017;209:114-123.
Hom, M. A., Chu, C., Schneider, M. E., Lim, I. C., Hirsch, J. K., Gutierrez, P. M., & Joiner, T. E. (2017). Thwarted belongingness as an explanatory link between insomnia symptoms and suicidal ideation: Findings from three samples of military service members and veterans. Journal of Affective Disorders, 209, 114-123. https://doi.org/10.1016/j.jad.2016.11.032
Hom MA, et al. Thwarted Belongingness as an Explanatory Link Between Insomnia Symptoms and Suicidal Ideation: Findings From Three Samples of Military Service Members and Veterans. J Affect Disord. 2017;209:114-123. PubMed PMID: 27898373.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Thwarted belongingness as an explanatory link between insomnia symptoms and suicidal ideation: Findings from three samples of military service members and veterans. AU - Hom,Melanie A, AU - Chu,Carol, AU - Schneider,Matthew E, AU - Lim,Ingrid C, AU - Hirsch,Jameson K, AU - Gutierrez,Peter M, AU - Joiner,Thomas E, Y1 - 2016/11/22/ PY - 2016/08/15/received PY - 2016/10/27/revised PY - 2016/11/15/accepted PY - 2016/11/30/pubmed PY - 2017/11/10/medline PY - 2016/11/30/entrez KW - Insomnia KW - Loneliness KW - Military KW - Suicidal ideation KW - Thwarted belongingness KW - Veterans SP - 114 EP - 123 JF - Journal of affective disorders JO - J Affect Disord VL - 209 N2 - BACKGROUND: Although insomnia has been identified as a robust predictor of suicidal ideation and behaviors, little is known about the mechanisms by which sleep disturbances confer risk for suicide. We investigated thwarted belongingness as an explanatory link between insomnia symptoms and suicidal ideation across three military service member and veteran samples. METHODS: Data were collected among United States military service members and veterans (N1=937, N2=3,386, N3=417) who completed self-report measures of insomnia symptoms, thwarted belongingness, suicidal ideation, and related psychiatric symptoms (e.g., anxiety, hopelessness). Bias-corrected bootstrap mediation analyses were utilized to examine the indirect effects of insomnia symptoms on suicidal ideation through thwarted belongingness, controlling for related psychiatric symptoms. RESULTS: Consistent with study hypotheses, thwarted belongingness significantly accounted for the relationship between insomnia and suicidal ideation across all three samples; however, insomnia symptoms did not significantly account for the relationship between thwarted belongingness and suicidal ideation, highlighting the specificity of our findings. LIMITATIONS: This study utilized cross-sectional self-report data. CONCLUSIONS: Insomnia may confer suicide risk for military service members and veterans, in part, through the pathway of thwarted belongingness. Additional prospective studies are warranted to further delineate this model of risk. Our results offer a potential therapeutic target for the prevention of suicide, via the promotion of belongingness, among service members and veterans experiencing insomnia symptoms. SN - 1573-2517 UR - https://www.unboundmedicine.com/medline/citation/27898373/Thwarted_belongingness_as_an_explanatory_link_between_insomnia_symptoms_and_suicidal_ideation:_Findings_from_three_samples_of_military_service_members_and_veterans_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0165-0327(16)31413-6 DB - PRIME DP - Unbound Medicine ER -