Christina M Sellers1, Antonia Díaz-Valdés2, Michelle M Oliver3, Kevin M Simon4, Kimberly H McManama O'Brien5. 1. Department of Psychiatry, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA 02115, USA; School of Social Work, College of Social Science, Policy, and Practice, Simmons University, Boston, MA 02115, USA. Electronic address: Christina.Sellers@simmons.edu. 2. Society and Health Research Center, Facultad de Humanidades, Universidad Mayor, Badajoz 130, Oficina 1306, Las Condes, Santiago 750000, Chile. Electronic address: Antonia.Diazvaldes@umayor.cl. 3. Department of Psychiatry, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA 02115, USA; School of Social Work, College of Social Science, Policy, and Practice, Simmons University, Boston, MA 02115, USA. Electronic address: Michelle.Oliver@simmons.edu. 4. Department of Psychiatry, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA 02115, USA; Harvard Medical School, Department of Psychiatry, Boston, MA 02115, USA; Adolescent Substance Use and Addiction Program, Division of Developmental Medicine, Department of Pediatrics, Boston Children's Hospital, 300 Longwood Ave, Boston, MA 02115, USA. Electronic address: Kevin.Simon@childrens.harvard.edu. 5. Department of Psychiatry, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA 02115, USA; Harvard Medical School, Department of Psychiatry, Boston, MA 02115, USA. Electronic address: KimberlyH.M.OBrien@childrens.harvard.edu.
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.
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.
Authors: Christina M Sellers; Antonia Díaz-Valdés; Andrew C Porter; Catherine R Glenn; Adam Bryant Miller; Adeline Wyman Battalen; Kimberly H McManama O'Brien Journal: Res Child Adolesc Psychopathol Date: 2021-05-31