1116 NIGHTMARES AND INSOMNIA SYMPTOMS PROSPECTIVELY PREDICT THE DEVELOPMENT OF SUICIDAL IDEATION
Abstract Introduction: Research has demonstrated an association between insomnia symptoms, nightmares, and suicidal ideation even above and beyond symptoms of depression, anxiety, and PTSD. Further, the longer an individual has insomnia or nightmares, the more strongly they are associated with suici...
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| Published in: | Sleep (New York, N.Y.) Vol. 40; no. suppl_1; p. A416 |
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| Main Authors: | , , , |
| Format: | Journal Article |
| Language: | English |
| Published: |
US
Oxford University Press
28-04-2017
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| Subjects: | |
| Online Access: | Get full text |
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| Summary: | Abstract
Introduction:
Research has demonstrated an association between insomnia symptoms, nightmares, and suicidal ideation even above and beyond symptoms of depression, anxiety, and PTSD. Further, the longer an individual has insomnia or nightmares, the more strongly they are associated with suicide risk. However, there has been little prospective work examining whether sleep disorders prospectively predict the development of suicidal ideation. The present study aimed to examine whether insomnia symptoms and nightmares predict the development of suicidal ideation. We hypothesized that both insomnia symptoms and nightmares would prospectively predict suicidal ideation at one, three, and eleven month post-assessments after controlling for baseline suicidal ideation.
Methods:
Amazon’s Mechanical Turk was utilized to recruit 706 participants, who then received follow-up requests for participation after one month (N = 375), three months (N = 292), and eleven months (N = 220). The Insomnia Severity Index was used to assess insomnia symptoms, the Disturbing Dreams and Nightmares Severity Index assessed nightmares, and current suicidal ideation was assessed using item 12 on the Quick Inventory of Depressive Symptomology.
Results:
Both insomnia symptoms (β = .22, t = 5.34, p < .01), and nightmares (β = .13, t = 3.17, p < .01), predicted suicidal ideation after one month when controlling for suicidal ideation at baseline. When entered into a model together, insomnia symptoms (β = .21, t = 4.31, p < .01) still significantly predicted suicidal ideation after one month, but nightmares failed to independently predict one month suicidal ideation independent of insomnia symptoms and baseline suicidal ideation. Neither nightmares nor insomnia symptoms predicted suicidal ideation at three or eleven months when controlling for baseline suicidal ideation.
Conclusion:
The present study demonstrates that both insomnia symptoms and nightmares are proximal, but not distal, risk factors for the development of suicidal ideation. Further, insomnia symptoms are predictive of the proximal development of suicidal ideation independent of nightmares and baseline suicidal ideation. This research is one of the first studies to demonstrate that sleep disorders are prospectively associated with the development of suicidal ideation, and as such it has great clinical relevance.
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| ISSN: | 0161-8105 1550-9109 |
| DOI: | 10.1093/sleepj/zsx050.1115 |