Association between hospital-level diagnostic testing and 3-day ED return visits at 34 US children’s hospitals. Association between hospital-level diagnostic testing and 3-day ED return visits at 34 US children’s hospitals. Mean testing count is not correlated with 3-day ED return visits (ρ = 0.19, P = .273). Each solid circle represents a single hospital. Estimates were adjusted for age, payor, and severity. Carrie H. Lind et al. Hospital Pediatrics 2016;6:714-721 ©2016 by American Academy of Pediatrics