CHANGING THE LANDSCAPE OF CHILD AND YOUTH PSYCHIATRIC EPIDEMIOLOGY

explore CU patterns and the relationship between CU and self-harm and overdose (SH/OD), including suicide attempts among adolescents, and the role of social support mitigating these associations.Methods: A sample of patients (N 243) ages 12 to 17 years was surveyed using Qualtrics in a Pediatric Emergency Department (PED) between May 2022 and February 2024.Survey measures included a combination of sociodemographic characteristics, substance use self-reports, Depression (Patient Health Questionnaire-8 [PHQ-8]), and lifetime history of SH/OD.Participants were also asked to state how true for them was the statement: "When I feel lonely, there are several people I can talk to."Descriptive and logistic regression analyses were conducted.Results: The mean age of participants was 14.8 years.The average score in the PHQ-8 was 15.5 (of note, 10 scores indicate depression).The percentage of White (45%) and Black (43%) participants was similar, and most participants were females (60.5%).One out of four participants reported having a deliberate SH/OD in the past.From most to least frequent, they had cut, seriously considered suicide, overdosed, and attempted suicide.After alcohol (32.2%), cannabis was the most common substance of use in their lifetime (23.1%).Two-thirds of participants perceived having social support.Participants with a lifetime history of CU, females, and those who did not have anyone to talk to when feeling lonely were more likely to SH/ OD.CU significantly and independently increased the risk of SH/OD (OR 3.2) even when controlling for age, sex at birth, race, and depression.Having someone to talk to when feeling lonely only slightly decreased the risk of SH/OD.Conclusions: CU is common among adolescents presenting to a PED and associated with SH/OD, even when controlling for sociodemographic factors and depression.While having someone to talk to when lonely decreased the risk of the effects of CU on SH/OD, the effects were small.Psychoeducation on the associations between CU on SH/OD among adolescents is warranted.