Citation

Sellers CM, Díaz-Valdés A, Oliver MM, Simon KM, O'Brien KHMM. Addict. Behav. 2021; 114: e106759.

Copyright

(Copyright © 2021, Elsevier Publishing)

DOI

10.1016/j.addbeh.2020.106759

PMID

33338906

PMCID

PMC7792986

Abstract

BACKGROUND: This study examined the trajectories of alcohol use, cannabis use, suicide planning (SP), and nonsuicidal self-injury (NSSI) prior to hospitalization and examined the role of alcohol and cannabis use, independently and jointly, in predicting NSSI on a daily level and over time.
METHODS: Participants included 71 adolescents hospitalized for suicide risk (75% female; 25% male; Mage = 15.79). All participants drank alcohol at least once in the prior 90-days. We conducted mixed effect models to assess the trajectories of alcohol use, cannabis use, and NSSI over the 90-days prior hospitalization. To test the effect of SP, alcohol use, and cannabis use on NSSI, we conducted logistic random effect models, while controlling for demographics.
RESULTS: SP (OR = 4.47, p < 0.001) and suicide ideation (SI) (OR = 10.09, p < 0.001) significantly increased the odds of engaging in NSSI. Neither cannabis nor alcohol use independently predicted the odds of engaging in NSSI, however, the co-occurrence of alcohol and cannabis use increased the odds of engaging in NSSI on a given day (OR = 30.5, p < 0.05).
CONCLUSIONS: Study findings extend current knowledge about the longitudinal and day-to-day relationships between alcohol and cannabis use and NSSI.

RESULTS underscore the importance of developing interventions that address polysubstance use among suicidal adolescents engaging in NSSI.

Language: en

Keywords

Adolescent; Adolescents; Alcohol; Cannabis; Female; Hospitalization; Humans; Inpatients; Male; Nonsuicidal self-injury; Risk Factors; Self-Injurious Behavior; Suicidal Ideation; Suicide attempts; Suicide, Attempted