Substance Use among Youth Presenting to the Pediatric Emergency Department.

Objective: Our primary objective was to determine the frequency and type of substance use in youth presenting to our pediatric ED (PED). Our secondary objective was to identify characteristics associated with higher-risk substance use.

Methods: We conducted a tablet-based, anonymous, self-administered screening for substance use using a modified version of the Screening to Brief Intervention (S2BI) tool among a convenience sample of 383 patients 12-21 years presenting to an urban, academic PED from February to July 2023. Patients' attitudes toward ED screening and interventions for substance use also were collected. The frequency and type of substance use was analyzed by age group. Ordinal logistic regression was used to identify characteristics associated with higher-risk use (monthly or more substance use) and lower-risk use (past year use), as compared to no past year use.

Results: Among 14-17-year-olds (n = 144), 38% reported substance use in the past year; 25% had higher-risk use. Among 18-21-year-olds (n = 172), 67% reported substance use in the past year; 48% had higher-risk use. Alcohol, cannabis, and tobacco were most commonly used. Substance use was rare for 12-13-year-olds. Compared to youth 14-17 years, youth 18-21 years were more likely to have either higher-risk use (aOR 3.81, 95% CI (2.24-6.47)) or lower-risk use (aOR 2.74 (1.41-5.35)), rather than no use. Compared to Asian patients, Non-Hispanic White patients (aOR 5.23 (1.07-25.66)) and Hispanic patients (aOR 3.18 (1.06-9.58)) were more likely to have higher-risk use than no use. Most patients reported that it was important for youth to be asked about substance use in the ED and to be offered help for substance use.

Conclusion: Youth substance use was common in this urban, academic PED, and many patients reported higher-risk use. These findings support future research to determine the best practices for ED substance use screening and ED-based interventions for youth.