TABLE 3.

Comparison of Outcomes for Records With PSI Events Versus Records Without PSI Events

PSI GroupMedian Length of Stay (Days)% Inhospital MortalityMedian Total Charges (Dollars)
With PSINo PSIPWith PSINo PSIχ2PWith PSINo PSIP
Suture of laceration*6.02.0.00011.1.4NS14 7186638.0001
Perforation diagnosis11.52.0.00017.7.4.00443 4046447.0001
Postoperative infection10.02.0.00012.4.3.000122 4456409.0001
Transfusion reaction§4.02.0.00013.6.4.000195171704.0001
Foreign body§8.02.0.00011.3.4NS16 8971704.0001
Infection attributed to procedure§9.02.0.00011.1.4.03519 8551704.0001
Iatrogenic conditions§9.02.0.00017.2.4.000140 2851702.0001
Wound disruption§§13.02.0.00014.1.4.000130 8311663.0001
Miscellaneous misadventures§6.02.0.00016.1.4.000120 0261703.0001
Obstetrical misadventures4.02.0.0001.4.0.000177193837.0001
Birth trauma**2.02.0.00011.0.4.000111071061.0001
E codes††4.02.0.00012.3.4.000110 2671807.0001
  • NS indicates not significant.

  • Risk pool definitions:

  • * Elective surgical and liveborn discharges, excluding trauma and foreign body cases.

  • Elective surgical and liveborn discharges, excluding trauma, foreign body, and cancer cases.

  • Elective surgical and liveborn discharges, excluding trauma and immunocompromised cases.

  • § Medical, surgical, and liveborn discharges, excluding trauma cases.

  • §§ Medical, surgical, and liveborn discharges, excluding trauma cases and immunocompromised cases.

  • Obstetrical discharges, excluding trauma.

  • ** Liveborn discharges, excluding trauma.

  • †† Medical, surgical, and liveborn discharges.