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Slide Presentation from the AHRQ 2007 Annual Conference

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Better PSI Performance Associated CAH Conversion: Alternative Explanations

Text Description is below the image.
  • Changes in coding behaviors
    • Did not find any significant change in hospital-level mean number of DX, mean Charlson score, mean number of Elixhauser comorbidities
  • Changes in referral patterns (get less severe patients)
    • No significant change in
      • Percentage of patients transferred from other hospitals
      • Percentage of patients transferred to other hospitals
    • Models adjusting for referral behaviors show consistent results
  • It reflects a trend toward improvement in patient safety for all hospitals
    • None-converted hospitals are comparison group
    • Add year dummy variables
    • Difference in difference

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