Table 4

Robust equal variance test for IRPES indicators

20122013
Robust equal variance test—IRPES indicatorsSD UHSD GHW50—medianPr>FSD UHSD GHW50—medianPr>FHigher variability in 2012Higher variability in 2013
Efficiency and appropriateness
Relative stay index (case-mix adjusted differential average LOS days)0.91.40.20.60.81.20.70.4GHGH
Percentage of medical discharges with LOS over the threshold for patients aged 65 and over1.720.10.81.72.10.70.4GHGH
Percentage of ED patients referred for hospital admission with ED LOS≤8 hours96.70.50.59.77.70.30.6UHUH
Patient satisfaction
Percentage of patients leaving ED against/without medical advice1.91.80.10.822.101UHGH
Percentage of hospitalised patients leaving against medical advice0.70.70.10.80.60.601GHGH
Economic and financial evaluation
20112012Higher variability in 2011Higher variability in 2012
Average cost per weighted case10687851.10.39628500.80.4UHUH
  • ED, emergency department; GH, general hospital; IRPES, Inter-Regional Performance Evaluation System; LOS, length of stay; UH, university hospital.