期刊
JOURNAL OF PSYCHIATRIC RESEARCH
卷 135, 期 -, 页码 135-142出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jpsychires.2021.01.004
关键词
Cannabis use disorder; Alcohol use disorder; Veteran; Suicide; Comorbidity
类别
资金
- U.S. Department of Veterans Affairs National Center for Posttraumatic Stress Disorder
The study shows that current and lifetime alcohol use disorder (AUD), cannabis use disorder (CUD), and their comorbidity are significantly associated with past-year and lifetime suicide ideation, plan(s), and attempt(s) in U.S. military veterans. Veterans with comorbid AUD/CUD or CUD only have higher odds of experiencing suicide ideation and planning compared to those with AUD only. This highlights the importance of screening for cannabis use disorder in suicide prevention efforts, especially with the increasing availability of cannabis.
Alcohol use disorder (AUD) and cannabis use disorder (CUD) are each associated with increased suicidal behavior, but it is unclear how their comorbidity relates to suicide risk. Understanding these associations in U.S. military veterans is especially important, given their heightened risk for suicide, high prevalence of AUD, and increasing access to cannabis. We compared associations of probable AUD, CUD, and AUD/CUD with suicide ideation, plan(s), and attempt(s) in a nationally representative sample of 4,069 veterans surveyed in 2019-2020 as part of the National Health and Resilience in Veterans Study. Among veterans who screened positive for current AUD, 8.7% also screened positive for current CUD. Among veterans who screened positive for current CUD, 33.3% screened positive for current AUD. Current and lifetime positive screens for AUD, CUD, and AUD/ CUD were each strongly and independently associated with past-year suicide ideation and lifetime suicide ideation, plan(s), and attempt(s) [odds ratios (ORs) = 1.6-8.7]. Relative to veterans who screened positive for AUD only, veterans who screened positive for AUD/CUD and CUD only had higher odds of past-year suicide ideation (AUD/CUD: OR = 3.3; CUD only: OR = 2.4), lifetime suicide ideation (AUD/CUD: OR = 1.9; CUD only: OR = 2.6) and lifetime suicide plan(s) (AUD/CUD: OR = 1.7; CUD only: OR = 6.1). Collectively, findings suggest that screening positive for CUD might be an especially strong indicator of suicide ideation and planning in veterans with and without AUD, independent of sociodemographic, military, trauma, and other psychiatric factors. These findings underscore the importance of routine screening for CUD in suicide prevention efforts, especially as cannabis becomes more widely available.
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