TY - JOUR PY - 2017// TI - Non-suicidal self-injury and suicide attempts in a New Zealand birth cohort JO - Journal of affective disorders A1 - Coppersmith, Daniel D. L. A1 - Nada-Raja, Shyamala A1 - Beautrais, Annette L. SP - 89 EP - 96 VL - 221 IS - N2 - BACKGROUND: Non-suicidal self-injury (NSSI) and suicide attempts are related, but distinct behaviors. The primary aim of the current study was to identify factors that distinguish those with different lifetime histories of self-injury. A secondary aim was to test whether lifetime history of self-injury at age 26 predicted current suicide ideation at age 32.

METHODS: Participants were 26 year olds from a large birth cohort with a lifetime history of no self-injury (n = 466), a lifetime history of NSSI (n = 191), or a lifetime history of NSSI and a suicide attempt (NSSI+SA; n = 52). They were compared on a history of psychiatric disorders, 12-month suicide ideation, lifetime history of childhood sexual abuse, and lifetime exposure to suicide.

RESULTS: An anxiety disorder, a substance dependence disorder, suicide ideation, and a history of childhood sexual abuse distinguished the NSSI+SA and NSSI only groups. Longitudinal results demonstrated that a history of NSSI predicted future suicide ideation after adjusting for other selected risk factors. LIMITATIONS: The majority of analyses are cross-sectional which limits inferences about causality. The retrospective self-report for lifetime behavior could be subject to reporting biases.

CONCLUSIONS: Adults with a history of NSSI and adults with a history of NSSI and a suicide attempt are clinically distinct groups that are both at risk of future suicide ideation. Identifying and treating NSSI could be a key preventive factor in reducing subsequent suicide risk.

Copyright © 2017. Published by Elsevier B.V.

Language: en

LA - en SN - 0165-0327 UR - http://dx.doi.org/10.1016/j.jad.2017.06.029 ID - ref1 ER -