Figure 6From: A three-step approach for the derivation and validation of high-performing predictive models using an operational dataset: congestive heart failure readmission case study Readmissions stratified according to discretized age, length of stay (LOS) and prior 6-month mean emergency department length of stay (PriorEDLOS). The X axis stands for the values/intervals of the variable and the Y axis stands for the related frequencies.Back to article page