Abstract 11897: Admission Rates for Pediatric Supraventricular Tachycardia From the Emergency Department Are Affected by Primary Insurance Payor: An Analysis of the NEDS Database

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Introduction: Supraventricular tachycardia (SVT) is the most common arrhythmia in children and often requires emergency department (ED) care. Recent data highlight disparities in access to care for pediatric patients with SVT, though the association of socioeconomic factors with ED outcomes remains unclear. Hypothesis: Outcomes of ED encounters for pediatric SVT will differ by insurance payor. Methods: We performed a retrospective cohort study utilizing encounter-level data from the 2006-2018 US Nationwide Emergency Department Sample (NEDS). All encounters for patients age 0-18 years with a primary diagnosis of SVT were evaluated, excluding those with diagnoses of congenital heart disease or cardiomyopathy. The primary exposure was insurance payor: private vs. public. The primary outcome was hospital admission/transfer. Secondary outcomes included inpatient length of stay (LOS), procedures (cardioversion, catheter ablation), and mortality. Logistic regression models evaluated the association of payor with outcomes, including the following covariates: age, hospital teaching status, hospital region, patient residence, and patient income. Results: A total of 38,896 ED encounters were analyzed: median age 11.5 years (IQR 6-15); 48% male; 53% private payor, 38% public payor. Encounters with public payor had a higher rate of admit/transfer than private (24% vs. 18%, p<0.0001). There were no differences in LOS (2.5 days public vs. 1.8 days private, p= 0.6) or procedures by payor; there were no mortalities. In multivariate analysis, public payor was an independent predictor of admission/transfer (OR 1.6, 95% CI 1.2-2.2). Patient age was also associated with admission/transfer, with all age groups less likely to undergo admission/transfer compared to age < 1 year: age 1-4, OR 0.3, 95% CI 0.2-0.6; age 5-8, OR 0.1, 95% CI 0.1-0.2; age 9-12, OR 0.1, 95% CI 0.1-0.2; age 13-18, OR 0.1, 95% CI 0.1-0.2. Conclusions: This analysis demonstrates that public payor is associated with higher rates of hospital admission/transfer for pediatric SVT, independent of age. Though we cannot evaluate why publicly insured patients are admitted more often, it may be due to more severe illness caused by delays in care for SVT. If so, this should be a target for intervention.