TABLE 2

ED-Level Unadjusted and Adjusted Risk of Revisit Versus No Revisit and of DHR Versus SHR

EDsRevisitDHR Versus SHR
Unadjusted Prevalence, %Separate Models OR (95% CI)Combined Model aOR (95% CI)Unadjusted Prevalence, %Separate Models OR (95% CI)Combined Model aOR (95% CI)
All visits2615.9N/AN/A17.4N/AN/A
Pediatric volume quartile, visits per y
 Quartile 1, ≤2703634.6ReferenceReference27.9ReferenceReference
 Quartile 2, 2742–5877664.50.96 (0.86–1.07)0.92 (0.83–1.02)24.10.69 (0.51–0.93)0.67 (0.50–0.89)
 Quartile 3, 6014–12 010665.01.05 (0.94–1.18)1.01 (0.90–1.12)23.70.63 (0.47–0.85)0.48 (0.35–0.65)
 Quartile 4, ≥12 026666.61.31 (1.17–1.46)1.17 (1.04–1.31)14.20.37 (0.27–0.49)0.27 (0.19–0.36)
Payer mix quartile, % Medicaid
 Quartile 1, lowest664.8ReferenceReference20.6ReferenceReference
 Quartile 2654.71.02 (0.93–1.13)1.03 (0.93–1.14)23.31.12 (0.82–1.52)1.13 (0.86–1.49)
 Quartile 3645.31.16 (1.05–1.28)1.15 (1.04–1.28)19.00.82 (0.60–1.12)0.89 (0.67–1.18)
 Quartile 4, highest666.91.49 (1.35–1.65)1.41 (1.27–1.57)14.50.85 (0.62–1.15)1.13 (0.84–1.52)
ED state
 Maryland485.5ReferenceReference23.7ReferenceReference
 New York2134.80.91 (0.82–1.01)1.00 (0.91–1.09)16.70.90 (0.68–1.19)0.81 (0.63–1.05)
ED locationa
 Urban2116.0ReferenceReference17.4ReferenceReference
 Nonurban444.90.96 (0.86–1.07)1.11 (1.01–1.23)16.80.71 (0.53–0.96)0.47 (0.35–0.61)
  • Independent variables were ED pediatric volume quartile, payer mix (quartile of the proportion of patients with Medicaid as their primary payer), state, and urban versus nonurban location. Four separate models were constructed for each outcome, with each model including 1 independent variable and the case-mix variables (age, number of patient CCCs, and visit severity). One combined model for each outcome included all 4 independent variables and the case-mix adjustment variables. N/A, not applicable

  • a Urban location status was missing for 6 EDs.