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. 2017 Oct;47(5):567-579.
doi: 10.1111/sltb.12331. Epub 2017 Feb 17.

Nonsuicidal Self-Injury Is Predictive of Suicide Attempts Among Individuals with Mood Disorders

Megan S Chesin  1   2 , Hanga Galfavy  2 , Cemile Ceren Sonmez  3 , Amanda Wong  4 , Maria A Oquendo  2 , J John Mann  2 , Barbara Stanley  2
Affiliations

Nonsuicidal Self-Injury Is Predictive of Suicide Attempts Among Individuals with Mood Disorders

Megan S Chesin et al. Suicide Life Threat Behav. 2017 Oct.

Abstract

Nonsuicidal self-injury (NSSI) prior to age 18 was evaluated as a risk factor for adulthood suicide attempt (SA). Archival data from 222 mood-disordered participants were analyzed using multivariate Cox proportional hazards analysis. Participants with a youth SA were excluded. The hazards of SA among adult participants with a history of youth NSSI were twice than those of mood-disordered participants without youth NSSI (hazard ratio = 2.00, 95% confidence interval = 1.16-3.44, p = .01). Moreover, participants who had both youth and adult NSSI attempted suicide significantly earlier than participants who began NSSI as an adult. Youth NSSI is associated with persistent, elevated SA risk in adulthood.

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Figures

Figure 1
Figure 1
Cumulative proportion of participants who did not attempt suicide during adulthood by history of youth NSSI. Kaplan–Meier estimates of survival functions. Log-rank rank χ2 for strata homogeneity = 11.23, p = .0001. Mean age of suicide attempt in patients without youth NSSI = 50.07 years (SD = 1.33). Mean age of suicide attempt in patients with youth NSSI = 32.49 years (SD = 1.72). The results of the Cox proportional hazard analysis unadjusted for youth aggression showed hazard ratio for youth NSSI = 2.33, 95% confidence interval [CI] = 1.40− 3.88, p = .001. NSSI, nonsuicidal self-injury.
Figure 2
Figure 2
Cumulative proportion of participants who did not attempt suicide during adulthood by history of youth and adulthood NSSI. Kaplan–Meier estimates of survival functions. NSSI, nonsuicidal self-injury.
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