Abstract
BACKGROUND AND OBJECTIVES: The Child Opportunity Index (COI) is a multidimensional measure of structural neighborhood context that may influence a child's healthy development. Our objective was to determine if COI is associated with children's emergency department (ED) utilization using a national sample.
METHODS: This was a retrospective cohort study of the Pediatric Health Information Systems, a database from 49 United States children's hospitals. We analyzed children aged 0 to 17 years with ED visits from January 1, 2018, to December 31, 2019. We modeled associations between COI and outcomes using generalized regression models that adjusted for patient characteristics (eg, age, clinical severity). Outcomes included: (1) low-resource intensity (LRI) ED visits (visits with no laboratories, imaging, procedures, or admission), (2) >= 2 or >= 3 ED visits, and (3) admission.
RESULTS: We analyzed 6 810 864 ED visits by 3 999 880 children. LRI visits weremore likely among children fromvery lowcompared with very high COI (1 LRI visit: odds ratio [OR] 1.35 [1.17-1.56];>= 2 LRI visits: OR 1.97 [1.66-2.33];>= 3 LRI visits: OR 2.4 [1.71-3.39]). ED utilization wasmore likely among children fromvery low compared with very high COI (>= 2 ED visits: OR 1.73 [1.51-1.99];>= 3 ED visits: OR 2.22 [1.69-2.91]). Risk of hospital admission fromthe EDwas lower for children fromvery low compared with very high COI (OR 0.77 [0.65-0.99]).
CONCLUSIONS: Children from neighborhoods with low COI had higher ED utilization overall and more LRI visits, as well as visits more cost-effectively managed in primary care settings. Identifying neighborhood opportunity-related drivers can help us design interventions to optimize child health and decrease unnecessary ED utilization and costs.