Figure 2:

Predicted vs observed ICU stays and patient overlap. (A) Median observed ICU stay with 95th percentile for patients with calculated risk scores indicating low, intermediate, or high risk based on Model I, De Cocker's model [7], the EuroSCORE II [15], and the published models for mortality [16] and prolonged ventilation [17] from our group. For the low risk group, the 95th percentile was 1 day for all models. The 75th percentile of all risk groups was 1 day for all models. (B) Number of patients with an ICU stay of (i) >2 days, (ii) >5 days or (iii) >7 days in grey circles and number of patients who died (upper figure half) or needed prolonged mechanical ventilation (lower figure half) in circles with broken lines, indicating overlapping patients in light grey areas.