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. 2016 Oct-Dec;20(4):539-52.
doi: 10.1080/13811118.2016.1158679. Epub 2016 Mar 8.

The Interactive Effect of Major Depression and Nonsuicidal Self-Injury on Current Suicide Risk and Lifetime Suicide Attempts

Anne C Knorr, Matthew T Tull, Michael D Anestis, Katherine L Dixon-Gordon, Mary F Bennett, Kim L Gratz

The Interactive Effect of Major Depression and Nonsuicidal Self-Injury on Current Suicide Risk and Lifetime Suicide Attempts

Anne C Knorr et al. Arch Suicide Res. 2016 Oct-Dec.

Abstract

This study examined the main and interactive effects of MDD and lifetime nonsuicidal self-injury (NSSI) on current suicide risk and past suicide attempts. We predicted that individuals with a history of NSSI and current MDD would be at greater suicide risk than those with either risk factor alone. An interaction between lifetime MDD and NSSI was hypothesized for past suicide attempts. 204 substance dependent inpatients completed self-report measures and a diagnostic interview. Patients with both a history of NSSI and current MDD, relative to all other groups, had the greatest suicide risk. No support was found for the lifetime MDD by NSSI interaction.

Conclusion: Findings suggest the relevance of both NSSI and MDD in suicide risk.

Keywords: deliberate self-harm; depression; substance dependence; suicidal behavior; suicidality.

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Figures

Figure 1
Figure 1
The interactive effect of current MDD and lifetime NSSI on suicide risk (controlling for opioid dependence, cocaine dependence, hallucinogen dependence, generalized anxiety disorder, marital status, education, and psychotropic medication use).
See this image and copyright information in PMC

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