Variability in imaging utilization in U.S. pediatric hospitals

Ryan W Arnold1, Dionne A Graham, Patrice R Melvin

  • 1Department of Radiology, Children's Hospital Boston, 300 Longwood Ave., Boston, MA 02115, USA.

Pediatric Radiology
|February 9, 2011
PubMed

Insights

Medical imaging use and costs vary significantly across pediatric hospitals. This variability persists even after accounting for patient complexity, highlighting potential areas for optimization.

Area of Science:

  • Pediatric healthcare research
  • Health services research
  • Medical imaging analysis

Background:

  • Medical imaging use is under scrutiny due to rising healthcare costs and radiation exposure concerns.
  • Significant variability exists in medical imaging utilization and associated costs across pediatric hospitals.
  • Understanding these variations is crucial for optimizing resource allocation and patient safety.

Purpose of the Study:

  • To compare medical imaging utilization and costs across pediatric hospitals.
  • To identify potential determinants of variability in imaging practices.
  • To inform strategies for cost containment and radiation dose reduction.

Main Methods:

  • Data extracted from the Pediatric Health Information System (PHIS) database for inpatient encounters at 40 U.S. children's hospitals.
  • Imaging utilization and costs analyzed by insurance type, region, hospital size, illness severity, length of stay, and imaging type for specific diagnoses.
  • Statistical analysis performed to compare utilization rates and costs, adjusting for case mix index (CMI).

Main Results:

  • Imaging utilization varied more than twofold between the highest and lowest utilizing hospitals.
  • Imaging costs ranged from $154 to $671 per patient.
  • Utilization rates were significantly higher in Pediatric Intensive Care Units (PICU) and Neonatal Intensive Care Units (NICU) compared to general wards.
  • Case Mix Index (CMI) and length of stay correlated with imaging utilization, but CMI explained only 36% of the variation.

Conclusions:

  • Diagnostic imaging utilization and costs exhibit wide variability in pediatric hospital settings.
  • Further research is needed to understand the drivers of this variability beyond case mix.
  • Potential exists for standardizing imaging protocols to reduce costs and radiation exposure.
Abstract

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