Volume 49, Issue 6 pp. 1560-1572
Original Article

(In)stability of Capability for Suicide in Psychiatric Inpatients: Longitudinal Assessment Using Ecological Momentary Assessments

Lena Spangenberg PhD

Corresponding Author

Lena Spangenberg PhD

Department of Medical Psychology and Medical Sociology, University of Leipzig, Leipzig, Germany

Address correspondence to Lena Spangenberg, Department of Medical Psychology and Medical Sociology, University of Leipzig, Philipp-Rosenthal-Str. 55, 04103 Leipzig, Germany; E-mail: [email protected]Search for more papers by this author
Heide Glaesmer PhD

Heide Glaesmer PhD

Department of Medical Psychology and Medical Sociology, University of Leipzig, Leipzig, Germany

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Nina Hallensleben MSc

Nina Hallensleben MSc

Department of Medical Psychology and Medical Sociology, University of Leipzig, Leipzig, Germany

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Dajana Rath Dipl.-Psych

Dajana Rath Dipl.-Psych

Institute of Medical Psychology and Medical Sociology, University Hospital of RWTH Aachen University, Aachen, Germany

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Thomas Forkmann PhD

Thomas Forkmann PhD

Institute of Medical Psychology and Medical Sociology, University Hospital of RWTH Aachen University, Aachen, Germany

Department of Clinical Psychology, Institute of Psychology, University Duisburg-Essen, Duisburg-Essen, Germany

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First published: 04 March 2019
Citations: 46
The research project was funded by the German Research Foundation (Grant No. SP 1556/1-1, GL 818/1-1, and FO 784/1-1).

Abstract

Objective

The study examines the temporal stability of capability for suicide (i.e., its state-like component), because it has been recently discussed that capability for suicide may be subject to shift over time.

Method

Seventy-four psychiatric inpatients with an unipolar depressive disorder were included in the study (mean age 37.9 years, 71.6% female, 32.4% with a history of suicide attempt). After a baseline assessment with several self-report questionnaires, ecological momentary assessments were applied over six consecutive days using smartphones. Capability for suicide was rated with three items once a day. For daily capability for suicide, descriptive and variability statistics and associations with baseline clinical characteristics (depression, suicidal ideation, childhood maltreatment, and history of suicide attempt) were analyzed. The prospective association of daily level of active suicidal ideation and daily capability was investigated by multilevel analysis.

Results

Indicators of within-person variability and temporal instability supported considerable fluctuation in daily capability for suicide. Yet the degree of temporal instability showed individual differences. Baseline and daily suicidal ideation were positively associated with daily fearlessness about death and perceived capability.

Conclusion

The results provide first evidence that capability for suicide includes a dynamic short-term component that is linked to clinical variables such as suicidal ideation.

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