PurposeAdolescent emergency department (ED) patients have unmet social needs that contribute to ED use. This study aimed to evaluate the effect of social needs navigation for adolescents on subsequent ED visits and community resource use and to identify characteristics associated with elevated social risk. MethodsBetween July 2017 and August 2019, we used a random date generator to establish intervention and control group enrollment dates. All adolescents completed a social needs survey. Adolescents enrolled on intervention dates received in-person, risk-tailored social needs navigation. Those enrolled on control dates received a preprinted resource guide. We used chart review and follow-up calls to assess 12-month ED revisits and community resource use. Logistic regression was used to compare these outcomes between groups. We measured the association between ≥3 reported unmet needs and characteristics hypothesized a priori to be associated with elevated social risk (nonurgent visits, obesity, or any of nine “socially sensitive” chief complaints) using logistic regression. ResultsA total of 399 adolescents were randomized. There was no difference between groups in the number of ED revisits. There was increased community resource use in the intervention group (adjusted odds ratio [aOR]: 3.5 [95% confidence interval {CI}: 1.5, 8.2]). Adolescents with a socially sensitive chief complaint had increased odds of ≥3 unmet needs (aOR: 2.2 [95% CI: 1.3, 3.6]), as did those with food insecurity in a post hoc analysis (aOR: 9.9 [95% CI: 4.0, 24.6]). DiscussionSocial needs navigation increased community resource use but not subsequent ED visits. Adolescents with socially sensitive chief complaints or food insecurity reported increased unmet needs.