Moral injury in combat veterans was linked to cannabis use disorder through depression
Among 215 Israeli combat veterans who used cannabis regularly, moral injury from perpetrating or witnessing betrayal was associated with cannabis use disorder, with depression mediating the relationship.
Quick Facts
What This Study Found
Moral injury from self-perpetration and betrayal were positively associated with CUD. Depression mediated the MI-CUD relationship. Surprisingly, the MI-CUD association was significant only among those with average or high perceived social support, suggesting social support alone does not protect against this pathway.
Key Numbers
Sample: 215 male combat veterans. Cannabis use: 3+ days weekly for 6+ months. Depression mediated MI-self to CUD (direct effect beta=0.13, p=0.1). Depression mediated MI-betrayal to CUD (beta=0.20, p=0.04). MI-CUD link only significant with average/high social support.
How They Did This
Cross-sectional survey of 215 male Israeli combat veterans discharged within 5 years who used cannabis 3+ days weekly for 6+ months. Validated questionnaires assessed moral injury, CUD, depression, and perceived social support. Serial mediation and moderation analyses.
Why This Research Matters
Understanding that moral injury drives cannabis dependence through depression in veterans opens specific therapeutic targets: treating the depression and moral distress rather than focusing solely on cannabis cessation.
The Bigger Picture
The finding that social support did not protect against MI-driven CUD, and may have even facilitated the connection, challenges assumptions about protective factors in veteran mental health.
What This Study Doesn't Tell Us
Cross-sectional design. Self-report measures. Israeli combat veterans may not generalize to other militaries. Only males included. Cannabis use was an inclusion criterion, limiting variance.
Questions This Raises
- ?Why does social support fail to protect against MI-driven CUD?
- ?Would treating depression first improve cannabis outcomes in morally injured veterans?
Trust & Context
- Key Stat:
- Depression mediated the moral injury to cannabis use disorder pathway
- Evidence Grade:
- Well-designed mediation analysis with validated instruments, but cross-sectional and single-sex sample.
- Study Age:
- Published in 2022.
- Original Title:
- Moral injury and cannabis use disorder among Israeli combat veterans: The role of depression and perceived social support.
- Published In:
- Addictive behaviors, 124, 107114 (2022)
- Authors:
- Ashwal-Malka, Aviya, Tal-Kishner, Keren, Feingold, Daniel(12)
- Database ID:
- RTHC-03684
Evidence Hierarchy
A snapshot of a population at one point in time.
What do these levels mean? →Frequently Asked Questions
Does moral injury lead to cannabis problems in veterans?
In this study, moral injury from combat was associated with cannabis use disorder, with depression serving as the pathway between the two.
Does social support help protect against cannabis problems?
Surprisingly, no. The moral injury-CUD association was actually only significant among veterans with average or high social support, suggesting more complex dynamics than expected.
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Cite This Study
https://rethinkthc.com/research/RTHC-03684APA
Ashwal-Malka, Aviya; Tal-Kishner, Keren; Feingold, Daniel. (2022). Moral injury and cannabis use disorder among Israeli combat veterans: The role of depression and perceived social support.. Addictive behaviors, 124, 107114. https://doi.org/10.1016/j.addbeh.2021.107114
MLA
Ashwal-Malka, Aviya, et al. "Moral injury and cannabis use disorder among Israeli combat veterans: The role of depression and perceived social support.." Addictive behaviors, 2022. https://doi.org/10.1016/j.addbeh.2021.107114
RethinkTHC
RethinkTHC Research Database. "Moral injury and cannabis use disorder among Israeli combat ..." RTHC-03684. Retrieved from https://rethinkthc.com/research/ashwal-malka-2022-moral-injury-and-cannabis
Access the Original Study
Study data sourced from PubMed, a service of the U.S. National Library of Medicine, National Institutes of Health.
This study breakdown was produced by the RethinkTHC research team. We analyze and report published research findings without making health recommendations. All interpretations are based solely on the published abstract and study data.