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. 2012 Jul 24;15(5):825–832. doi: 10.1093/icvts/ivs302

Figure 1:

Figure 1:

Model calibration and discrimination. (A) Calibration plot for Model I for an ICU stay of >2 days, bootstrapped (n = 400 repetitions) means with 95% confidence intervals. X-axis indicates predicted probability for each decile of patients; Y-axis gives corresponding Kaplan-Meier estimate. Dotted line indicates ideal calibration, i.e. predicted stay is identical to Kaplan-Meier estimate. (B) ROC curves for Model I, Model II, De Cocker's model [7], the EuroSCORE II [15], and the published models for mortality [16] and prolonged ventilation [17] from our group for an ICU stay >2 days.