Emergency Department Care for Children During the 2022 Viral Respiratory Illness Surge.

Importance: Pediatric readiness is essential for all emergency departments (EDs). Children's experience of care may differ according to operational challenges in children's hospitals, community hospitals, and rural EDs caused by recurring and sometimes unpredictable viral illness surges. Objective: To describe wait times, lengths of stay (LOS), and ED revisits across diverse EDs participating in a statewide quality collaborative during a surge in visits in 2022. Design, Setting, and Participants: This retrospective cohort study included 25 EDs from the Michigan Emergency Department Improvement Collaborative data registry from January 1, 2021, through December 31, 2022. Pediatric (patient age <18 years) encounters for viral and respiratory conditions were analyzed, comparing wait times, LOS, and ED revisit rates for children's hospital, urban pediatric high-volume (≥10% of overall visits), urban pediatric low-volume (<10% of overall visits), and rural EDs. Exposures: Surge in ED visit volumes for children with viral and respiratory illnesses from September 1 through December 31, 2022. Main Outcomes and Measures: Prolonged ED visit wait times (arrival to clinician assigned, >4 hours), prolonged LOS (arrival to departure, >12 hours), and ED revisit rate (ED discharge and return within 72 hours). Results: A total of 2 761 361 ED visits across 25 EDs in 2021 and 2022 were included. From September 1 to December 31, 2022, there were 301 688 pediatric visits for viral and respiratory illness, an increase of 71.8% over the 4 preceding months and 15.7% over the same period in 2021. At children's hospitals during the surge, 8.0% of visits had prolonged wait times longer than 4 hours, 8.6% had prolonged LOS longer than 12 hours, and 42 revisits occurred per 1000 ED visits. Prolonged wait times were rare among other sites. However, prolonged LOS affected 425 visits (2.2%) in urban high-pediatric volume EDs, 133 (2.6%) in urban pediatric low-volume EDs, and 176 (3.1%) in rural EDs. High visit volumes were associated with increased ED revisits across sites. Conclusions and Relevance: In this cohort study of more than 2.7 million ED visits, a pediatric viral illness surge was associated with different pediatric acute care across EDs in the state. Clinical management pathways and quality improvement efforts may more effectively mitigate dangerous clinical conditions with strong collaborative relationships across EDs and setting of care.