Fig. 2

Prediction of 7-day, 14-day and 30-day mortality versus the prognostic index based on the PLANS model (red line); Prediction of 7-day, 14-day and 30-day mortality versus a smooth function of the prognostic index using generalized additive model (black line) together with the 95% confidence band; Upper part: derivation cohort; Lower part: validation cohort