Non-suicidal self-injury and its relation to suicide through acquired capability: investigating this causal mechanism in a mainly late-diagnosed autistic sample

This publication is included in the Autistic Autism Scholarship Project. one author of this publication is identified as autistic in the project.

About the autistic author marker

Moseley, R. L., Gregory, N., Smith, P., Allison, C. T., Cassidy, S., & Baron-Cohen, S. (2022). Non-suicidal self-injury and its relation to suicide through acquired capability: investigating this causal mechanism in a mainly late-diagnosed autistic sample. Molecular Autism, 13(1), 45-45. https://doi.org/10.1186/s13229-022-00522-5

Journal or book title
Molecular Autism
Publisher
Springer Science and Business Media LLC
Volume
13
Issue
1
Pages
45-45
Article number
45
Publication date: 12 Nov 2022 Added to AutiHub: 6 Jul 2026 Type: Article Article language: English

This publication is integrated into AutiHub through:

Authors

Publication authors
6
Publication authors identified as autistic
1 / 6 (16.7%)

Abstract

BACKGROUND: Non-suicidal self-injury (NSSI) has been linked with a higher risk of suicide attempts in autistic and non-autistic people. In the general population, NSSI may confer acquired capability for suicide by eroding one's fear and avoidance of pain and death. The present study aimed to explore acquired capability as the mediator of increased suicide risk conferred by NSSI in autistic and non-autistic adults. METHODS: Autistic and non-autistic adults (n = 314, n = 312) completed an online survey exploring lifetime suicide attempts, experience with NSSI, and acquired capability for suicide. We explored relationships between lifetime incidence of NSSI and lifetime suicide attempts via three facets of acquired capability (pain tolerance, reduced fear of death, and mental rehearsal of suicide). In self-harming participants (224 autistic and 156 non-autistic), we explored whether particular types and features of NSSI might be especially associated with capability and through that with suicide: namely engagement in scratching, cutting, and self-hitting, and engaging in more numerous forms of NSSI. RESULTS: While a higher frequency of NSSI was associated with all three facets of acquired capability, only reduced fear of death and mental rehearsal of suicide mediated an indirect relationship with lifetime suicide attempts. NSSI also directly predicted more numerous suicide attempts. Autistic people tended towards reduced fear of death and mental rehearsal regardless of NSSI status. Among self-harming autistic and non-autistic participants, cutting and an increased number of NSSI behaviours were associated with lifetime suicide attempts directly and indirectly via acquired capability. In both groups, self-hitting was associated with lifetime suicide attempts only via acquired capability. LIMITATIONS: Our cross-sectional methodology negates inferences of directionality. While we controlled for age, our samples were poorly matched, with the autistic group two times older on average. The autistic sample, predominantly late-diagnosed, female and highly qualified, were unrepresentative of the whole autistic community. CONCLUSIONS: Our data suggest that acquired capability, as measured herein, is an incomplete explanation for the association between NSSI and suicide risk. A broader construct with stable and transient facets may offer greater explanatory power, but it is probable that other variables explain or provide additional means through which this association arises.

Bibliography cited by this reference

Cited references are imported from external metadata sources when they are available. The list may be partial.

Cited bibliography overview

These indicators describe the bibliography cited by this publication. An author name is counted each time it appears in one cited reference, so the same person can be counted more than once. Names not yet linked to an author already present in AutiHub are treated as unknown, not as non-autistic. Last computed: 3 Oct 2026 01:00.

Cited references
132
With a DOI
124
Without a DOI, from raw bibliography text
5
6 / 132 (4.5%) cited references include at least one author identified as autistic.
References with data to complete
1 / 132 (0.8%)
References with detected author names
131 / 132 (99.2%)
Without detected author names
1
Without a structured title
1
Without a stable identifier
5
References with raw author names still to review
1
References with external metadata lookup issues
0
These indicators apply to cited references displayed on this page, after technical duplicates have been merged. A reference without a DOI can still support author statistics when a title and author names are available.
Author names detected in the cited bibliography
593
From DOI or external metadata
593
From validated raw bibliography text
0
Raw names already validated
0
Raw names still to review
5
113 / 593 (19.1%) names are linked to an author already present in AutiHub. 480 / 593 (80.9%) names are not yet linked.
Names linked to a person identified as autistic
6 / 593 (1.0%)
Calculated across all author names detected in the cited bibliography. Among names linked to an author already present in AutiHub: 6 / 113 (5.3%). Distinct people identified as autistic: 3 / 492 (0.6%).
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