TABLE 2

Admission Rate Variation Across US Children’s Hospitals for Select APR-DRG Diagnostic Groups Among Pediatric Patients Treated in the ED From 2009 Through 2012 (n = 1 288 706)a

APR-DRG CategoryNo. CasesHospital-Level Admission RateAdjusted Hospital-Level Admission Rateb
Median (IQR)RangeCoefficient of VariationcMedian (IQR)RangeCoefficient of Variationc
Asthma410 53024 (15–26)13–500.4024 (19–29)13–520.32
Cellulitis and other bacterial skin infections225 30419 (14–22)10–410.3818 (14–22)5–370.38
Bronchiolitis and RSV pneumonia212 57430 (26–37)17–770.3632 (27–39)19–650.31
Pneumonia NEC152 41729 (25–37)15–740.4031 (24–35)19–690.31
Kidney and urinary tract infections120 99718 (12–21)5–480.5416 (13–20)6–370.39
Seizure97 82917 (12–23)7–380.4116 (12–23)7–370.39
Concussiond69 05517 (12–29)4–730.6819 (13–28)5–720.64
  • IQR, interquartile range.

  • a Patients aged 0–18 y, inclusive, without a complex chronic condition diagnosis.

  • b Adjusted for patient severity.

  • c Coefficient of variation (SD/mean) represents a standardized metric to compare the variability between measurements with different means, with higher values indicating greater variation.

  • d Concussion, closed skull fracture, uncomplicated intracranial injury, coma <1 h, or no coma.