Log-transformed total cost per patient according to the All Patient Refined Diagnosis Related Group SOI classes

SOI classPatients nMean (95% CI) cost EUR#Coefficient of variation %
Minor562264 (1948–2631)51
Moderate2973246 (3065–3437)46
Major2094364 (4041–4713)51
Extreme597598 (6350–9091)56
  • SOI: severity of illness.. #: log costs were de-transformed with 95% confidence interval. ANOVA with polynomial contrasts showed a significant linear trend for SOI (p<0.0001).