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J Affect Disord. 2017 Apr 15;213:96-104. doi: 10.1016/j.jad.2016.12.060. Epub 2017 Feb 3.

Reciprocal relationships between substance use and disorders and suicidal ideation and suicide attempts in the Collaborative Study of the Genetics of Alcoholism.

Author information

1
Washington University School of Medicine, Dept. of Psychiatry, St. Louis, MO, USA. Electronic address: arpana@wustl.edu.
2
Washington University School of Medicine, Dept. of Psychiatry, St. Louis, MO, USA.
3
University of Rochester Medical Center, Dept. of Emergency Medicine, Rochester, NY, USA.
4
Kings College, Institute of Psychiatry, Dept. of Addiction, London, UK.
5
Virginia Commonwealth University, Dept. of African-American Studies, Richmond, VA, USA.
6
Indiana University, Dept. of Biochemistry and Molecular Biology, Indianapolis, IN, USA.
7
University of Connecticut Health, Dept. of Psychiatry, Farmington, CT, USA.
8
University of Iowa Carver College of Medicine, Dept. of Psychiatry - Div. of Psychology, Iowa City, IA, USA.
9
University of Iowa Carver College of Medicine, Depts. of Psychiatry and Pediatrics, Iowa City, IA, USA.
10
Indiana University School of Medicine, Dept. of Psychiatry, Indianapolis, IN, USA.
11
University of California San Diego, Dept. of Psychiatry, San Diego, CA, USA.
12
SUNY Downstate Medical Center, Dept. of Psychiatry, Brooklyn, NY, USA.

Abstract

BACKGROUND:

Substance use and misuse and suicidal thoughts and behaviors tend to co-occur. The purpose of this study was to examine whether (a) suicidal ideation and attempt are related to onset of alcohol, nicotine and cannabis use and dependence; (b) early use of alcohol, nicotine and cannabis is associated with onset of suicidal ideation and attempt; and (c) whether these associations persist while controlling for covariates, such as family history of alcohol problems, major depression and other internalizing and externalizing disorders.

METHODS:

The prospective cohort of the Collaborative Study of the Genetics of Alcoholism (COGA; N=3277) was used. Cross-sectional and discrete time logistic regression (i.e. survival) analyses examined associations between suicidal ideation and attempt and onset of alcohol, nicotine and cannabis use and dependence. Survival models also examined whether individual early substance use was related to onset of ideation and attempt.

RESULTS:

Ideation was related to 0.71-0.77 odds of onset of subsequent alcohol, nicotine and cannabis use. Attempt was associated with 1.44-1.61 odds of later alcohol, nicotine and cannabis dependence, even after accounting for covariates. Evidence for early substance use being related to subsequent onset of ideation or attempt was limited. Several sex and race differences emerged.

LIMITATIONS:

The sample was ascertained for family history of alcoholism; not all participants had been followed up allowing for censored observations; reporting bias.

CONCLUSION:

Suicide attempts are associated with increased likelihood of onset of substance dependence.

KEYWORDS:

Alcohol; Attempt; COGA; Cannabis; Ideation; Nicotine; Suicide

PMID:
28213124
PMCID:
PMC5434702
DOI:
10.1016/j.jad.2016.12.060
[Indexed for MEDLINE]
Free PMC Article

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